Electric Specification

SCOPE OF WORK FOR ELECTRIFICATION179 SCOPE OF WORK FOR ELECTRICAL INSTALLATION 1 GENERAL AMC has decided to construct a Primary Health Center at Jodhpur Gam, Ahmedabad. For required power of the health center, a Substation is considered, which will have 11 kV HT Breaker Panel Transformer, LT Panel, APFCR Panel etc. Power at each floor will be distributed through Distribution boards which will be empowered from LT Panel at Substation. For emergency power supply, a DG set of required capacity is considered. Separate Distribution boards at each floor are considered for DG powered light fixtures and equipments. 2 2.1 CONTRACTOR’S SCOPE OF WORK The Contractor’s scope for this tender shall include Supply, Installation, Testing and Commissioning of entire electrical system from substation to end points which includes HT Cable, HT panel, Transformer, DG set, LT panels and distribution boards, Light fixtures, Wiring, Fire alarm system, CCTV System, Earthing and computer data cabling. The work shall include cabling and feeding power to various water pumps / Fire pumps also. The work shall include supply of all equipments and materials at site as required for Electrical installation work, LT Power Distribution, Indoor Lighting, Wiring, area lighting, electrical feeders and cables for feeding lift power, Earthing System, lighting poles, Communication System, Data Management system/network etc. as required for all infrastructure facilities and other utilities including storage facilities at site, handling, transportation of equipment and material from contractor’s stores/warehouse to the site of installation , installation, testing and commissioning of complete electrical system including supply of required commissioning spares. 2.2 Scope of work shall include supply, installation, testing and commissioning of all equipment and systems to meet the requirement defined in specifications, data sheets and drawings attached with the tender and required for completion of the job including but not limited to the same. 2.3 Engineering activities to be performed by contractor shall include but not be limited to the following as relevant to the scope of work included in the project specifications: a) Collection of data from site / Owner as required for carrying out residual engineering and co-ordination with Architect / Consultant and other agencies working at site. b). c) Preparation of shop inspection and testing procedures Preparation of Field testing and commissioning procedures 180 d) e) f) Preparation of ‘As-built’ drawings. Other activities listed in data sheet. Any other work/activity which is not specifically listed but is necessary for completeness of electrical system 2.4 All work to be performed and supplies to be effected as a part of contract shall require specific review of owner or his authorized representative as per vendor data requirement. 2.5 2.6 Installation, testing and commissioning of the entire system. Obtaining clearance for energizing the complete electrical facilities covered under this tender and approval of installation / drawings and documents from Central Electrical Authority / Inspectorate and any other concerned approving authority. 2.7 Contractor shall include the liaison work for getting approval and permissions of necessary documents and drawings from Electrical inspector office, Electricity Supply Company and any other Statutory Authorities for the entire electrical installation and following up with Electricity Supply Company for getting power as per the schedule given by Owner. Owner shall pay all statutory fees towards these works. 2.8 Drawings pertaining to the installation shall also be got approved by the contractor from the Licensing Authorities / Electrical Inspector as a part of the scope of work. 2.9 Contractor shall furnish the list of recommended spares along with quantity and unit price for all equipment as required for operation and maintenance of the entire electrical system for two years. 2.10 2.11 Commissioning spares as required shall be included and supplied. Temporary construction power system as required shall be arranged by the contractor by means of adequately rated portable D.G sets (if not arranged by Owner). Area lighting as required during construction phase of the contract shall also be included. Client is not responsible to provide the required construction power and water supply to the contractor. 2.12 Any work not explicitly mentioned but nevertheless required to fulfil the following minimum requirements shall be deemed to be included in the scope of the contractor with no additional cost/time implication to the owner: - To meet the requirements of statutory approving authority - To ensure equipment and personnel safety - To suit site facilities and environmental conditions - To co-ordinate with other contractors / agencies involved at site for other activities/site works. 181 5 CHANGES IN SCOPE OF WORK Owner shall be free to alter. Contractor shall include in the price.14 All supervisory. materials and testing and commissioning of the installation are part of the scope of this Contract. it will be considered that the specifications have been accepted by the contractor in total.2. add to or delete any part of the job without any compensation to the contractor. the order of priority shall be as follows: • • • • Execution Drawings Specific requirements vide bill of materials Contractor’s scope of work Consultant’s specifications for relevant equipment / packages 3 LIST OF FREE SUPPLY ITEMS BY OWNER Not Applicable 4 DEVIATIONS The Contractor shall indicate in his bid any deviation from these specifications while quoting his price. Contractor will not ask for any extra cost from the Owner at later date in respect of such items implicitly covered in the scope of work. 2. 2. including materials and labour. skilled and unskilled labour. 6 SET OF DOCUMENTS / INFORMATION TO BE PROVIDED BY CONTRACTOR.13 The scope of work shall also include taking delivery of the free supply items (if any) for the installation of the system including associated electrical utility services required to make the system operative within the scheduled time. Otherwise. The provision of all testing instruments / kits for testing and commissioning of the system shall be arranged by the contractor as a part of his scope of work.15 Incase of any conflict amongst various documents attached with the tender. cost of supply. in case the contractor fails to provide sufficient labour / materials under his scope for the execution and completion of the work on schedule as per owner’s assessment. installation and testing and commissioning of the entire system. within his scope. 182 . Detailed Site organisation chart showing the information of the personnel to be proposed to deploy at site along with their detailed bio-data. Samples / technical details of equipment / materials to be supplied by the contractor. List of the years. 183 . clients and capacities of the electrical systems installed in MVA.2 Documents to be submitted immediately after the date of award of contract i) ii) iii) iv) Field quality assurance plan with time schedule for each activity of electrical installation work. List of electrical tools. List of qualified engineers with designation and work experience.6.1 Information to be provided along with the Contract i) ii) iii) iv) Photo copy of valid electrical contractor’s license for the area / State of the Project. testing equipment / instruments in possession. List of construction / working drawings to be submitted for approval of local Statutory Authority. 6. SAFETY REGULATIONS 184 . The contractor shall ensure that all his equipments and electrical wiring. failing which the Owner has a right to disconnect the power supply with out any prior notice to the Contractor.SAFETY REGULATIONS FOR THE TEMPORARY ELECTRICAL INSTALLATIONS DURING CONSTRUCTION ACTIVITY AT SITE It will be the responsibility of the Contractor to provide and maintain any temporary Electrical installation he may intend to execute with due regard of safety at site. All Switchgears. Incase power supply falls below 0. shall comply in all respects with the latest statutory requirements and safety provisions. installations. modified. Power supply will be reconnected only after production of fresh certificate from authorised electrical supervisor. frequency or any interruption in power supply or other loss to the contractor arising there from. he will reimburse to the Owner at the panel rate determined by the Owner for all units consumed during the month. Cabling. The meters shall be sealed by the Owner / their Representative.e. Cost of any repair or maintenance at the Owner’s / other contractor’s end due to any fault in the Contractor’s installation shall be to Contractor’s account at the rate decided by the Owner / their Representative. intentional or unintentional on the part of the Contractor. i. National Electricity Codes. Guide lines laid down in respective Indian Standards.90 in any month. 185 . The Indian Electricity Rule. The Owner is not liable for any loss or damage to the Contractor’s equipment as a result of variation in voltage. At all the times. the above regulations shall be followed by the Contractor. etc. The contractor shall ensure that the Electrical equipments installed by him are such that the average power factor does not fall below 0. for any construction activity is installed. equipment. No claim shall be entertained for such dis-connection by the Owner / their Representative. A test certificate shall be produced to the Owner / their Representative for his approval before charging the Electrical system. Incase of damage of any of the Owner’s / other Contractor’s equipment on account of fault. etc. The contractor will have to provide and install his own light and power meters which will be governed as per the rules laid down by the respective Power supply Authority. as per The Indian Electricity Act. Wiring. the Owner reserves the right to recover the cost of such damage from the Contractor’s bill.90 at his supply point. maintained by a licensed Electrician / Supervisor. Tenderer shall indicate the total requirement of construction power as single point power supply in his tender. Contractor should strictly follow the guide lines mentioned as below: All panel boards, cabling, wiring, motors, lighting, hoisting equipment and other dangerous installations should be provided with efficient safeguards and protections. Adequate precautions should be taken to reduce / minimize the risk of any hazard or accident. All the Switchgears, Protective devices should be sized properly to feed the required load as well as to provide the perfect over current, short circuit and earth leakage protection. All the power and lighting distribution feeders shall be provided with either earth leakage relay (ELR) or with earth leakage circuit breaker (ELCB) with maximum leakage sensitivity of 100mA. All the cables and wires laid shall be mechanically protected and shall be laid in a manner to avoid any accidental hazard. The cables and wires shall have damage and puncture free insulation and conductor size should be properly selected to feed the required load current with out causing any damage to the switches and cable insulation. There should not be any loose, unprotected joints (by means of PVC tape, connector strips, etc.) on the cables / wires. All the panel boards, Power switch sockets should be of metal clad type and weatherproof type (if located outside) and shall be installed at a min. height of 1.5 mtr. from the floor level. The doors of all the panel boards, switches, plug sockets should be always kept in closed condition to avoid any accidental access to the live terminals. Power sockets should have interlock facility in such a manner the insertion or removal of plug can not be possible when switch is ‘ON’ condition. 186 Specifications for HV Switchboard 187 List of Contents Specifications for HV Switchboard 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 SCOPE CODES AND STANDARDS CONSTRUCTIONAL FEATURES MAIN BUS BARS CIRCUIT BREAKERS EARTHING CUBICLE ACCESSORIES AND WIRING FOR MECHANISM BOX INSTRUMENT TRANSFORMERS INSTRUMENTS PROTECTIVE RELAYS TESTS INSPECTION GUARANTEE DRAWINGS & INSTRUCTION MANUALS DATA SHEET MAKE OF SWITCHGEARS COMPONENTS QUALITY ASSURANCE DEVIATION TOOLS AND SPARE PARTS 188 General requirements for switchgear exceeding 1000 V. Material. The enclosed drawings and/or data sheet.2 1. Specification for electrical relays for power system protection. Unless otherwise specified equipment shall conform to the following latest applicable IS Standards. Circuit breaker. CODES IS: 1248 (Part-1) (1993) IS: 2147 (1962) IS: 2705 (Part-1) (1992) IS: 3156 (Part-1) (1992) IS: 3231 (1965) IS: 3427 (1997) IS: 12729 (1988) IS: 13118 (1991) IS: 5 (1994) IS: 2099 (1986) IS : 694 IS : 2071 DESCRIPTION Direct acting indicating analogue electrical measuring instruments and their accessories: General requirements. & control gear for voltages 1.1 2. A.1 SCOPE This specification covers the design. metal enclosed switchgear and control gear for rated voltages above 1 KV & up to & including 52 KV. testing & supply of H. statutory regulations and safety codes.2 Specification for High Voltage A.3 2 2. approval of fire insurance.1 1. Bushings for alternating Voltages above 1000 Volts. Voltage transformers: General requirements.C. Columns for ready mixed paints and enamels. The drawing and specifications complement each other and what is shown or called for one shall be interpreted as being called for on both. CODES AND STANDARDS The equipment shall comply with all applicable electricity rules. association. Current transformers: General requirements. single line diagram form a part of the specification. Equivalent IEC / BS standards shall be used as applicable. Degrees of protection provided by enclosures for low voltage switchgears & control gear.V indoor drawout type switchboards up to and including 33KV comprised of Vacuum / SF6 circuit breakers. manufacture. if any. PVC insulated cables for working voltages up to and including 1100V Methods of high voltage testing 189 . which may have been omitted but which fairly implied as being required to make a complete assembly of switchgear as shown on the drawing and specifications shall be construed as being required and no extra charges shall be paid for this material.C. openings for natural ventilation shall be provided. Vertical panels shall be assembled to form a continuous line-up of uniform height.4 3. Structural framework with foundation/fixing holes etc. removable covers inter panel coupling shall be gasketted all around with neoprene gaskets for operating mechanism panel. Wherever required. cubicles.1 CONSTRUCTIONAL FEATURES Switchgear shall be an indoor type for use in HV Systems. All component mounted inside the panel shall be provided with identification nameplate.5 3. All doors.C system. rated current and system fault level shall be as per enclosed data sheet. Metal enclosed unit shall comprise of rigid welded structural frame enclosed by minimum 2 mm thick cold rolled metal sheets.3 3. moisture and vermin proof.2 Switchgear shall be dust. relays. These shall be louvered and provided with wire mesh having opening less than 1 mm. Switchgear shall be suitable for 3 phases.6 Separate labels shall be provided for switchgear. Supply voltage. 190 . stiffeners shall be provided to increase stiffness of large size doors and covers. switch etc. It shall have porcelain – clad construction. shall be provided at the bottom to mount switchgear directly on concrete/ steel channel base. earthed/unearthed A. instrument. Adequate phase clearance and height shall be provided to meet standard and safety requirements. triple pole vacuum circuit breakers/SF6.IS : 2544 IS : 3618 IS : 6005 IS : 9046 IS : 9920 IS : 9921 Porcelain post insulators for systems with nominal voltage greater than 1000V Phosphate treatment of iron and steel for protection against corrosion Code of practice of phosphating of iron and steel AC contactors of voltage above 1000V up to and including 11000V Switches and switch isolators for voltages above 1000V AC disconnectors (isolators) and earthing switches for voltages above 1000V 3 3. Danger board shall also be provided. gang operated. If required. The equipment shall be brand new with latest technology and features and shall have proven track record. 3. 3. “Test” and “Drawout” positions.2 191 . Plugging in or drawing out of a breaker in closed position Plugging in a breaker when earthing isolator is closed Closing of earthing isolator when breaker is plugged in Pulling out the auxiliary circuit plug with the breaker in service position Pushing in the breaker to the service position. 4 4.7 Painting shall be done by surface coating comprising pre-treatment.8 All terminals shall be shrouded with plastic covers to prevent accidental contact. subjected to spraying of powder charged at about 90 KV through electrostatic guns. v. suitable bimetallic connections/clamps shall be provided. Curing shall be done in stoving oven at 180o to 200o C for 12 to 15 minutes ensuring a uniform and continuous coating.10 3.3. The drawout breaker trolley on the panel board shall have “Service”. of cables. MAIN BUS BARS Main bus bars shall be of uniform cross section in aluminium or copper as specified in the drawing/data sheet. Details of drilled holes in the busbars and openings in the panels for the purpose of future extension shall be clearly shown in the vendor drawings.11 3. Necessary interlocks shall be provided to prevent the following operations: i.8 3. after proper drying. rear engraved on black background.1 4. Incase the standard panel depth can not accommodate the required nos.7 3. a rear extension panel of uniform height shall be provided. Panel board shall be extensible from either direction for any future expansion. Wherever aluminium to copper connections is required. All circuit breaker modules of the same rating shall be inter-changeable. when the auxiliary circuit plug not in position 3. Letter shall be in white colour. Nameplates shall be of anodised aluminium or approved design. iv. The surfaces to be coated shall be chemically derusted and degreased at a temperature of 70o to 80oC. The switchgear shall have ample space for the connection of all incoming and outgoing cables with necessary supports for clamping them. Safety barriers / shutters shall be provided to permit personnel to work safely within an empty compartment with the busbar energised. zinc phosphatised and then passivated at about 60oC and. The colour of the shade shall be 631 of IS 5. Automatic safety shutters shall be provided to ensure the inaccessibility of all live parts after the breaker is drawn out.9 3. ii. iii. electrostatic powder spraying and curing. Vacuum circuit breakers shall be designed with low switching over voltage levels and with a long switching life.2 5. Electrical power to the spring charging motor should be cut off automatically. busbar compartments shall be protected with 3 mm thick FRP sheets.5 Operating mechanism shall be non-pumping electrically and mechanically. It should be ensured that whilst manual spring charging is in operation.10 .7 5.6 5. Spring charging motor shall preferably be a universal motor. anti-tracking barriers shall be incorporated. When breaker is already closed. Motor shall be used solely for storing energy in the spring . vacuum bottle consist of highly evacuated casing with ceramic cylinder. with a target value of vacuum life of 20 years.4 4. Circuit breaker with its operating mechanism shall be mounted on a structure.and not for direct closing of the Breaker. when the spring is charged fully.1 5. A mechanical OPEN/CLOSE position indicator visible with closed door shall be provided.4. Mechanical trip and close devices shall be provided. Circuit breakers shall be conforming to IS: 13118 (1991) standard.3 The bus bars shall be provided with heat shrinkable sleeves and colour coded for identification. individual for each phase. CIRCUIT BREAKERS Circuit breaker poles shall be operated by a common shaft. complete with motor. Limit Switch shall be provided to cut-off the motor power. with a contact for spring charged indication lamp on the panel. 192 5.3 5. Operation counter shall be provided.9 5.4 5. In order to avoid any accidental hazards. Vacuum circuit Breaker shall have enclosure containing fixed. If common support is provided for all busbars. failure of any auxiliary spring shall not prevent tripping and shall not cause damage to the breaker or endanger the operator. The interrupter shall be leak free. moving & Arcing contact. The thermal design of the busbars shall be based on the installation of the switchgear in poorly ventilated conditions.6 5 5. Separate supports shall be provided for each busbar. Also mechanical indication for spring charged/Discharged shall be provided. Circuit Breaker shall be provided with Motor wound spring charging mechanism.5 4. 4. Breakers shall have facility to charge the spring by the manual spring charging handle. suitable arrangement shall be provided to check the contact wear & tear.8 5. . The circuit breaker shall comprise hermetically sealed single interrupter for vacuum circuit breaker. or as specified in data sheet. interrupted contacts with special alloy capable of withstanding arc temperature and reduce chopping current.17 6 6. earthing truck along with necessary accessories shall be supplied along with the switchgear. & D. Sulphur hexafluoride (SF6) circuit breaker shall have each pole consist of insulating enclosure of synthetic resin containing fixed.C. MCB of suitable rating shall be provided for A.15 5. 5. Pole chamber shall be filled with sulphur hexafluoride gas at desired pressure.5mm2 flexible FRLS PVC insulated stranded copper conductor for control circuits and with 2. SF6 gas pressure switch with contact should be provided to lockout closing or tripping circuit breaker and give alarm in event of the pressure falling below desired value. supply.C. The earth switch shall be interlocked.2 6.4 7 . 193 6. Earth switch shall also be provided.16 5. In case it is not possible to provide earth switch. Wiring of AC & DC shall be colour coded. SF6 gas shall be filled up with non-returnable valve.5mm2 copper conductor wires for CT circuits.3 6.5.1 EARTHING The earth bus bar shall be of sufficient cross section to carry safely momentary short circuit current for 1 sec.12 5. CUBICLE ACCESSORIES AND WIRING FOR MECHANISM BOX Cubicle internal wiring and inter panel wiring shall be carried out with 2. Working parts of mechanism shall be of corrosion resisting material. moving & arcing contacts connected with operating mechanism by insulated tie rod. with the breaker/isolator. All non current carrying metal parts shall be effectively bonded to the earth bus. A closing release & shunt trip releases shall satisfactorily operate of related control supply voltage. Bushing shall conform to the requirements. if specified in data sheet. The following shall be provided:a. Surge suppressor shall be provided as specified in data sheet.11 Breaker incoming and outgoing terminals shall be suitable for cables as specified in data sheet.14 5.13 5. An earthing bus extending throughout the length of the switchgear shall be provided. The lamps shall have translucent covers. The colour of push buttons shall be as follows: Start Stop Trip Spring Charger Trip Circuit Health Green Red Amber Blue White k. Relays and Remote control is provided on relay and control Panel supplied by other. The ratings specified are indicative only and it shall be Contractor’s responsibility to ensure that the ratings are adequate for relays/meters application considering load resistance etc. All push buttons are required to have functional labels. f. C and A. Lamps shall have diameter of 22. Cubicle illuminating lamp CFL/FL with control switch and door limit switch in the instrument chamber. Plug point with switch. g. Local / Remote Selector Switch shall be provided. contacts etc. i. Provision shall be made to provide D.2 194 .b. e. required for operation & maintenance shall be supplied for switchgear. c. Each wire shall be identified at both ends by correctly sized PVC ferrules. m. Push buttons shall be momentary contact type rated for 10A at 500 V AC.C supply to Remote Relay and Control Panel. d. j. 8 8. Indicating lamps shall be multiple LED type made from FR type polycarbonate material with Low voltage glow protection (up to 50V) and translucent lamp covers. h. CT/VTs shall be of indoor mounted on separate Structure type.1 INSTRUMENT TRANSFORMERS CT and VT shall be cast resin insulated and conform to the requirements of IS: 2705/ (Part 1) (1992) and IS: 3156/ (Part-1) (1992) respectively. shall be provided.5. l.5 Watts. such that same can be used as and when required. Aux. Cubicle space heater along with MCB /switch fuse & thermostat control. One set of tools. 650 V grade terminal blocks of Polycarbonate type including 20% spare terminal or minimum 4 Nos. shall be wired up to the Terminal Block. 8. All inter panel control wiring within each shipping sections shall be done by vendor. Lamps shall be replaceable from front. whichever is higher. The power consumption of each indicating lamp should not exceed 0. Minimum 10% spare terminals shall be provided on each terminal block. All spare contact of Relays/Breaker. 9 9. Protective CTs shall have an accuracy class of 5P and an accuracy limit factor greater than 10. 4 wire system. Routine tests shall be carried out on all components as per relevant standards. TESTS Vendor shall test each cubicle as per relevant standards with all components assembled and fully wired. suitable for flush mounting. Watt-hour and Var-hour meters shall be suitable for 3 phase. One leg of the CTs shall be earthed.8. CTs for measuring instruments shall have an accuracy class of 0. INSTRUMENTS Indicating instruments shall be of Digital type. Separate CTs shall be provided for differential protection. Load Analyser / Load manager shall have communication port to interface with the Plant DCS / Control room PROTECTIVE RELAYS Relays shall be Micro processor based / Static type and suitable for flush or semi flush mounting with connections from rear. All KWH meter shall have computer interface facility through RS 485 port. etc.3 CTs shall be mounted on the stationary part of the switchboard.4 VT shall be provided with adequately rated primary and secondary fuses.1 10. VTs. Four (4) copies of test certificate shall be submitted for Owner’s approval before despatch of switchgear. Relay operation / trip indication shall be provided on door.4 9.3 195 . All required auxiliary equipment such as shunts. shall be included in the scope of switchboard supplier. Protective relays shall be in draw out cases.2 11.3 11 11. transducers.5 10 10.5. CT terminals of shorting links type shall be provided at terminal blocks. Interposing CT (ICT) shall be provided for differential protection of transformers having star-delta connection.1 11.3 9. CTs. 8. balanced as well as unbalanced load and suitable for semi-flush mounting.2 9.2 10. The VTs shall be of drawout type and shall be provided with fuses on primary side and a 4 pole MCBs with auxiliary contacts on the secondary side. All protective and tripping relays and timers shall be provided with fault display LEDs.1 9. All CTs shall be star connected. 8 11.10 11.17 12 12.sets of Test certificates of all bought out items supplied along with the panel.4 Vendor shall also submit 4 . VT.11 11. of competent authority.7 Operational Test (Electrical & Mechanical) of Circuit Breaker. INSPECTION Owner or his authorised representatives will carry out inspection including witnessing tests.14 11.13 11. Insulation Resistance Test of Power & Control Circuit.2 12. with low voltage tester.1 12. indicating lamp. High Voltage Test on Power and Control Circuit.15 11. Before and after High Voltage Test. bearing tag No. CT. Physical dimensional check as per the approved drawing and visual inspection of the switchgear. viz. Meters etc. 11. Primary/Secondary current injection test to check the operation of Meters and relays. interlocks etc. Relay. prior to the test. Earth continuity Test. at 70 to 110% of rated voltage and also synchronous operation test. Current Transformers Polarity Test. Owner reserves the right to witness the switchgear/components mounted in switchgear:following routine test on 11. Simulating actual operational conditions to check the operation of circuit breaker.6 11. All apparatus.5 11.12 11. Voltage Ratio Test for Voltage Transformers. Circuit Breakers contact opening & closing time at rated voltage. Pick-up & Drop-off voltage test for shunt trip and closing coil. instruments etc.3 196 . Mill volt drop test of circuit breaker.11.9 11.16 11. required for test shall be provided by the vendor’s and shall have been checked and tested for accuracy during the twelve month. Vendor shall notify Owner or his authorised representatives in writing at least fifteen (15) days prior to scheduled date of inspections. 4 14. Final list of apparatus for each type. fuse. thermal overload relays. 14 14. whichever is earlier.1. Drawing data sheet and catalogues along with bid. List of recommended spares for 2 (two) years operation of switchgear shall be submitted along with the bid. Schematic diagrams with terminal and ferrule numbers. Vendor shall submit four (4) copies of “Installation & Instruction” manual.13 GUARANTEE Vendor shall guarantee design.6 14. 14.1. fuse. four (4) prints of each drawing marked “Certified for record and use”. Vendor shall furnish G.3 14.1. materials/workmanship and performance for a period of twelve (12) months from the date of commissioning and handing over the installation to the Owner. Foundation drawing of circuit breaker.A. elevation. Four (4) copies of type test and routine test certificates shall be submitted for customers approval before dispatch of switchgear. DATA SHEET The attached data sheet indicates detailed technical requirements.1. duly certified by the site-in-charge/Owner’s representative for satisfactory operation of the equipment or 18 months from the date of delivery of item at site.1 14. One print of each drawing will be returned to vendor after making all necessary corrections. Vendor shall incorporate these and send within fifteen days.5 14. and thermal overload relays. Characteristic curves for relays of each type. typical section with dimensions and location of terminal blocks for external connections.5 14. Vendor has to fill in the data asked for in the data sheets.1. changes and required clarifications.1.3 14.2 14.6 14. Complete assembly drawing of Switchgear showing plan.1 DRAWINGS & INSTRUCTION MANUALS Vendor shall submit for (4) sets of the following drawings for approval after award of contract.7 15 197 . Vendor shall also submit one (1) set of CD to owner and consultant containing all drawings and documents.4 14. Manufacturer’s descriptive literature on various components used in switchboard.2 14. for approval of Owner/Consultant. 19 198 .1 18. In the absence of such a statement. TOOLS AND SPARE PARTS One complete set of all special or non-standard tools per set required for installation. 17 QUALITY ASSURANCE Vendor shall submit their internal quality assurance plan followed for manufacturing of the equipment. Vendor shall furnish the list and quote separately. This shall be adhered to and shall be monitored by Owner/Consultant during manufacture.2 DEVIATION Deviation from specification must be stated in writing at the quotation stage. operation and maintenance of Circuit Breaker. it will be assumed that the requirements of specification are met without any deviation. Vendor of shall ensure availability of spare parts and maintenance support service for minimum 15 years from the date of supply of the equipment.16 MAKE OF SWITCHGEARS COMPONENTS Make of switchgear component shall be as specified in data sheet or customer standard. 18 18. 1 DESCRIPTION REQUIREMENT VENDOR TO FURNISH GENERAL Switchgear designation HT Panel Board 1.13 2 2.4 2.7 Reference drawings. 50 Hz 28 kV 75 kV 26. 1 1.2 3.6 1.4 ELECTRICAL PARAMETERS Breaker voltage & frequency Power frequency withstand Voltage 1:2/50 microsecond impulse voltage withstand (peak) Short circuit withstand Capacity Short time Momentary (peak) 12 KV.3 2. Powder coated 1.3 KA for 1 sec.3 3.2 1. of Phases System Fault Level System earthing Control Supply a b DC AC 12 kV+ 10%. NO. 85% * Non-hazardous Cable box GI.5 Termination Earth bus material and size OPERATING CONDITIONS Rated Voltage & Frequancy Nos. 50Hz 3 3.50 X 10 Indoor As per Single Line Diagram Shade 631 as per IS-5 Required. Installation Type Colour finish Exterior / Interior Any special final paint required Site conditions Site location Ambient temperature Relative humidity Altitude Atmosphere AHMEDABAD 47oC max.1 3.2 2.12 1.3 KA Solid Earthed 110V DC thro' inbuilt SMPS Unit 240V + 6%.5 1.SR. 50 Hz + 5% Three (3) 26. 1-Phase.3 1.1 2. 66 KA 199 .4 1. 2 4.10 3.3 4.5 4.4 5.4 4.1 4.6 4.3 5.5 Busbar rating Operating mechanism As per Single Line Diagram Motor Operated Spring Charged 3.9 3.3 sec-CO-3 min-CO Not Required Required Nos.1 6.5 5.11 Not Applicable Not Applicable 0-0.1 5.7 5 5.3 MAKE OF COMPONENTS Selector switches Breaker Control Switch Indicating lamps Terminals blocks Pushbuttons Control wires Relays PANEL CONSTRUCTION DETAILS Thickness of sheet steel Base frame channels with bolt Overall dimensions of each cubicle Minimum clear drawout space required Cubicle weight with breaker Dynamic loading BUSBARS Material (Main and Earth bus) Main bus size Earth bus size Vendor to furnish Vendor to furnish Vendor to furnish Kaycee / Salzer Salzer / Alstom Siemens / Teknic / L&T / Schneider Elmex / Connectwell / phoenix Siemens / Teknic / L&T / Schneider Finolex / RR Cabel / Polycab / Avocab Areva / CSPC / ABB Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish 200 .8 3.3. of Contacts shall be provided 4 4.2 6.6 Control supply voltage Closing Coil Tripping coil Space heater Indication & annunciation circuits Maximum size of motor to be switched Suitability of Capacitor switching Duty Cycle of Motor Earthing Switch / Earthing Truck Interfacing with SCADA system 110 V DC 110 V DC 240 V AC 110 V DC 3.7 3.6 6 6.2 5. 2 8.4 7.1 8.2 7.8 9. Rated primary current Ratio Output Accuracy class Short time current and duration Power frequency withstand voltage 1:2/50 Microsecond impulse withstand voltage MEASURING INSTRUMENTS Make Type Range CIRCUIT BREAKERS Manufacturer’s name Type Rated voltage and frequency.7 6.7 7.5 7.6 9.11 9. (a) Between poles Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish 201 . Short time current (1sec.7 9.8 7 7.4 6.1 7.9 9. 1:2/50 Microsecond impulse withstand voltage.) Power frequency withstand voltage.3 9.1 9.6. of breaks per phase. Duty cycle for breaking capacity. Making current capacity. Voltage class of support CURRENT TRANSFORMERS Make Type Rated voltage and freq. Nos. Rise over design ambient temp.6 7.1 9.3 7.3 9 9.12 Bare / painted / taped / insulating sleeve Minimum clearance in air Continuous current rating at site conditions Temp.5 6.9 7. Current rating Rated symmetrical interrupted current.5 9.8 7.4 9.2 9. Minimum clearance.6 6.10 8 8. 2 10.9 (b) In air between live parts and earth.16 10 10.15 9.3 10.9.6 10.8 10. Ratio Connections Rated output 1 Phase Rate accuracy Power frequency withstand voltage 1:2/50 Microsecond impulse withstand voltage HV and LV fuse/MCB rating Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish Vendor to furnish 202 . (c) In oil between live parts and earth.14 9.1 10.5 10.7 10.4 10.13 9. Fixed trip/trip free Electrical antipumping Feature provided Type of operating mechanism VOLTAGE TRANSFORMERS Make System voltage and Freq. Specifications for Transformer Page 203 . Accessories Required. Busduct Terminations 13. Voltage Control 11.List of Contents Specifications for Oil cooled Transformer – 315 KVA 1. Cooling Plant 10. Marshalling Box 16. Tests 18. List of Mandatory Spares and Datasheets Page 204 . Bushing Insulators and Cable Boxes 12. Tank 8. Rating 4. Painting 17. Operation under overload condition 5. Winding 7. Guarantee 20. Temperature Indicating Devices and Alarms 14. Codes and Standards 3. Oil 9. Constructional Features 6. Scope 2. Gas and Oil Actuated Relay (Buchholz Relay) 15. Inspection 19. Drawing and Instruction Manuals 21. 5. as applicable: i) ii) iii) iv) v) vi) 3 RATING The rating.SPECIFICATION FOR TRANSFORMER 1 SCOPE This specification covers liquid immersed transformer.2 Core 5. shall be interchangeable. the equipment shall conform to the latest applicable Indian Standards.2 Page 205 . voltage ratio. particularly removable ones.4 Materials in contact with oil shall be such as not to contribute to the formation of acid in oil. Specification for gas-operated relays.1 The design of the magnetic circuit shall be such as to avoid static discharges.1.E. type of cooling of the transformer and tap changing gear shall be as specified in the enclosed data sheet. Rules.1 CONSTRUCTIONAL FEATURES General 5. 5.1. 2 2. IS: 2026 : IS: 335 : IS: 2099 : IS: 3639 : IS: 3337 : IS: 6600 : Power Transformer. 5. 5 5.2 Exposed parts shall not leave pockets where water can collect. etc. I. 2. manufacture and performance of the equipment shall comply with all Indian Standards.1. to meet this requirement.3 Internal design of transformer shall ensure that air is not trapped in any location. development of short circuit paths within itself or to the earthed clamping structure and the production of flux components at right angle to the plane of the laminations which may cause local heating. Fittings and accessories for Power transformer. tap changer. Surfaces and shall not be galvanised or cadmium-plated. Guide for loading of oil-immersed transformer.1 CODES AND STANDARDS The design. 5. 4 OPERATION UNDER OVERLOAD CONDITION It shall be possible to operate all transformers as per loading guide up to overloads of 150% and there shall be no limitations imposed by bushings.1. auxiliary equipment.2. High voltage porcelain bushings. vector group. Unless otherwise specified. Insulating Oil for Transformers and Switchgear.1 Similar parts. Statutory Regulations and Safety codes currently applicable in the locality where the equipment will be installed. 5.2.2.2 The magnetic circuit shall be of “core type” construction. 5. installation and service.4 7. Adjustable devices shall also be provided for taking up possible shrinkage in service. so that no further shrinkage occurs during service.5 7 TANK 7.8 Page 206 . Tank shall be provided with lifting lugs and a minimum of four jacking lugs and suitable haulage holes. low carbon steel and shall be of welded construction suitable for an operating ambient condition.1 7.3 7. Protection shall be provided. 5.4 The core shall be provided with lugs suitable for lifting the complete core and coil assembly. The windings shall be designed to reduce to a minimum the out-of-balance forces in the transformer at all voltage ratios. grain-oriented. by crane or jacks. of the complete transformer assembly filled with oil. 5. cold-rolled.5 Tank shall be made from good commercial grade.3 The finally assembled core shall be free from distortion. where necessary. core bolts and associated individual clamping plates shall be earthed. The tank shall be designed to permit lifting.2. The material used for gaskets shall be cork-neoprene or approved equivalent. All wheels should be detachable and shall be made of cast iron or steel as required. chemically inactive and insoluble in hot transformer oil and shall not soften or be otherwise affected under the operating conditions. high permeability.7 7.3 Internal Earthing All metal parts of the transformer with the exception of the individual core laminations. for each capillary tube. Windings for system voltages of 33KV and below shall be fully insulated. The tank cover shall be fitted with pockets for a thermometer and for the bulbs of oil and winding temperature indicators. 6.2.2 6. transport. low-loss.6 7. The core shall be built out of high grade.4 6. silicon steel laminations. Conservator 7. 5.1 Windings shall be subjected to shrinking and seasoning process. non-ageing.5 All parts of the core shall be of robust design capable of withstanding any shocks to which they may be subjected during lifting. It shall be rigidly clamped to ensure adequate mechanical strength and to prevent vibrations during operation.3 6. Star-connected windings for systems above 33KV shall have graded insulation. Inspection cover on the top shall be provided (for transformers of 500 KVA and above). Neutral of all star-connected windings shall be brought out in open. Materials used in the insulation and assembly of the winding shall be non-catalytic. 6 WINDINGS 6. All neutral points shall be insulated for the voltages as specified in Indian Standard.2 7. 7.10 Pressure Release Device 7. 8 OIL 8.3 On-load Type Tap-Charger (OLTC) – Not Applicable 10. 10.1 A conservator complete with sump and drain valve to meet the requirement of expansion of the total cold oil volume in the transformer and cooling equipment from the minimum possible ambient temperature to 900C shall be provided. shall be operable locally by means of operating handle and equipped with an indicating device to show the tap in use and shall be provided with locking arrangement to lock the operating mechanism in the various positions. of taps shall be as specified in data sheet. a sampling device for oil and air release plug.10.12 Rating and Diagram plates shall be provided. Page 207 . 7. 7. COOLING PLANT Radiators connected to the tank shall be detachable and valves shall be provided on the tank at each point of connection to the tank. 7. 7. 7.9 Filter and Drain Valves Each transformer shall be fitted with filter and drain valves. 10.3. 7.2 Off-Circuit Tap-changer Off-circuit top-changing gear.7.10.8. or silica gel breather shall be fitted to the pressure release device. 10 VOLTAGE CONTROL 10.2 9 Transformer shall be supplied with first filling of oil plus 10% spare quantity.3 The conservator shall be provided with a silica gel breather.3 If a diaphragm is put at the base of a pipe. 7.2 Normally one oil gauge.1The on-load circuit tap-changing gear shall be operable by local and remote electrical control and also local manual operation.2 If a diaphragm is used.1 The type of voltage control and No.4 An equaliser pipe shall be connected between the pressure release device and the conservator for relieving or equalising the pressure. as specified in the data sheet. magnetic/ prismatic/ plain type as specified. The additional oil shall be supplied in non-returnable drums for each transformer.1 Pressure release device shall be provided of sufficient size for rapid release of any high pressure that may be caused in the transformer in the course of occurrence of any fault.11 Two Earthing terminals of required size shall be provided.8. it shall be of suitable design and material and situated above the maximum oil level.1 8. where provided. an oil gauge is required on the pipe for indicating fracture of diaphragm.10.10.8. 7. shall be provided. shall be provided on a Remote Tap Changer Control panel (RTCC).4 Transformer shall be fitted either with bushing insulators or with cable boxes as specified. 11 BUSHING INSULATORS AND CABLE BOXES 11. the switches.3.3.3.6 Limit switches shall be provided to prevent over-running of the mechanism.10. Non-magnetic cable gland plate shall be provided. 10.7 Thermal devices and fuses shall be provided to protect the motor and control circuits. tap-change-in-progress indication.3 11. a disconnecting chamber shall also be provided for enabling disconnection of cable and moving away the transformer without hindrance or draining oil from the main tank. which do not contain making or breaking current contacts. tap position indicator. An oil gauge shall be provided when oil in bushing is not in connection with that in the transformer. For 110/132 KV and above. 10. condenser brushings shall be used. Winding temperature indicator shall be provided.4 For remote control. if specified. shall be maintained under conservator head by means of a pipe connection from the conservator. etc. a flanged throat or equipment connection shall be provided to suit Employer’s bus ducts.3. 13 TEMPERATURE INDICATING DEVICES AND ALARMS 13. Page 208 . 11. Bushing insulators for 36 KV and above shall be provided with arcing horns except for neutral bushings. leaving the cable box or chamber behind on external supports. wherever single core cables are specified. switches.1 11. etc.3. and indication on a multi way switch.2 The equipment shall be suitable.5 11.2 Oil temperature indicator with/without electrical contacts shall be provided as specified in Data Sheet. having one fixed contact for each tap position shall be provided.3. 10. 10. etc. fuses. for supervisory control. Necessary glands and cable sockets shall be provided. with contacts as required. A separate Buchholz relay with isolating valve shall be provided for OLTC. The LV winding terminations shall be on suitable bushings. 10. 10. make-before-break.2 11. side.V. and to accommodate all cable joint fittings or sealing ends including stress cones. if specified.8 A suitable counter shall be fitted to indicate the number of operations completed by the OLTC. The cable box shall have liberal space to facilitate termination if more than one cable connections are specified.5 The oil in the compartments. All relays.3. Links shall be provided of suitable length for easy termination of the leads. When connection is made by cable on H. shall be mounted in the marshalling box or driving-gear housing.3 Operation from local or remote control switch shall cause one tap movement only until the control switch is returned to the off position between successive operations.6 12 BUS DUCT TERMINATION When bus-duct termination is specified.1 13. 2 16 PAINTING 16. 13. before despatch of the transformers.2 Type Test Heat-run test on one transformer of each rating shall be conducted. shall be painted with heat-resistant. 15 MARSHALLING BOX 15. etc. 17.4 13. shall be conducted. Isolating valves shall be provided on either side of the relay.1 Routine Tests All routine tests as specified such as ratio test.3 The tripping contacts of winding temperature indicator shall be adjustable to close between 600C and 1200C and alarm contacts to close between 500C and 1000C. etc. second coat of oil and weather-resistant paint and final coat of glossy oil and weather-resistant non-fading paint.1 The interior of transformer tank.13. insulation resistance test. measurement of winding resistance. 18 INSPECTION Page 209 . terminals and gland plates for the incoming and outgoing cables.5 14 GAS AND OIL ACTUATED RELAY (BUCHHOLZ RELAY) A double float type Buchholz relay shall be provided. open circuit test. adequately ventilated and weather proof marshalling box shall be provided for the transformer ancillary apparatus. other than oil-filled chambers and internal structural steel-work.1 A sheet steel. nonload loss test. Steel surfaces exposed to weather shall be thoroughly cleaned and applied with first coat of zinc chromate. 17.3 Test Certificates Seven copies of all routine and type test certificates shall be submitted for Purchaser’s record. control and protection equipment for local electrical control of the tap changer and cooling plant. 16. Connections shall be brought from the devices to the marshalling box.2 17 TESTS 17. short circuit test. if so required. which shall have two electrically independent alarm and trip contacts. The marshalling box shall accommodate temperature indicators. induced high voltage test. The contacts used on the above devices to control the cooling motors (in the case of forced cooling) shall be adjustable to close between 500C and 1000C and to reopen when the temperature falls by any desired amount between 150C and 300C. vermin proof. Both shall reopen when the temperature falls by about 100C below the selected temperature. 15. oil-insulating varnish after thorough cleaning and removal of all scales and dust by shot-blasting or other approved method. including witnessing tests.1 Inspection.16. indicating terminal ferrule numbers and connections.3 21 DATA SHEETS The enclosed data sheets indicate detailed technical and quantity requirements Page 210 . vendor shall submit. materials. seven prints of each drawing marked “Certified for Record and Use”. within three weeks. Rating and diagram marking plates. 20 DRAWINGS AND INSTRUCTION MANUALS 20. Supplier shall notify Employer or his authorised representatives in writing at least fifteen (15) days prior to the scheduled inspection / tests. weights. Wiring diagram of the marshalling box/CT terminal box. various transformer accessories. Maintenance and Operation of the Transformer and the control devices mounted on the transformer. 16. iii) 20. four prints of the following drawings for approval: i) ii) General arrangement drawing indicating the dimensions. workmanship and performance of the equipment for a period of twelve (12) months from the date of commissioning or eighteen (18) months after delivery at job site whichever earlier. 20. Vendor shall incorporate these and send within fifteen days. will be carried out by Employer and / or his authorised representatives. Vendor shall also submit seven copies of instruction Manuals for Installation.2 One print of each drawing will be returned to Vendor incorporating Employer’s/Consultant’s comments and remarks if any and clarifications as may be required. etc.2 19 GUARANTEE The supplier / manufacturer shall provide guarantee in respect of the design.1 After the order is placed. 17.ACCESSORIES REQUIRED: 1. 7. 2. 22. Sampling Valve Conservator Conservator Drain Valve Bi-directional Flat / Flanged Rollers Dial type Thermometer with Contacts Explosion Vent Buchholz Relay – Double float with contacts Silica Gel Breather Air Release Plug Separate Neutral Bushing Thermometer Pocket Off Circuit Tap Changer Top Oil Filter Valve Drain cum Bottom Filter Valve Cross-channels with towing lugs Jacking Pads Lifting lugs for active parts Marshalling Box Winding Temperature Indicator Oil Temperature Indicator Magnetic Oil level gauge HV Connectors / Lugs Inspection Cover Earthing Terminals : Page 211 . 9. 4. 3. 12. 21. 23. 16. 6. 10. 15. 8. 18. 5. 13. 11. 24. 20. 14. 19. 35 KA for 1 Sec. First filling of oil shall be included in scope of supply.) as per shade no. neutral end LV wdg. Earthed Fault levels WINDINGS Material of winding Winding connection and Vector – DYN 11 MISCELLANEOUS Accessories as per list Wheels Copper – Double Wound HV LV Delta Star System Neutral Earthing TRANSFORMER NEUTRAL Type of Earthing HV Solidly Earthed LV Solidly Earthed Neutral Current Transformers –Required Location Primary Side Secondary Side Ratio Class Qty 600/1A 5P10 & PS Plain / flanged -Bi-directional Yes Any special final paint required (Epoxy etc. line end LV wdg. per transformer NCTs required for REF and Back up earth fault protection Disconnecting Chamber Required / not Required .Star 315 KVA ONAN Pri.DATA SHEET GENERAL Item no.5 % RTCC and AVR required No TERMINAL CONNECTIONS HV wdg.415/0.433 KV HV System 26 KA LV System max. Application Quantity 1 Continuous duty 1 Nos. Page 212 .winding Frequency Percentage impedance 5. rise of winding by 55o C resistance ON / OB cooling TAP CHANGER * OFF Circuit Tap Changer Tapping on winding HV/LV HV Total tapping range +5 to –5% Step 2. Outdoor TEMPERATURE RISE Ambient temperature maximum 45o C Ambient temperature minimum 06o C Temp.433 KV 50 Hz HV Cable Box LV Cable box Material Size Copper 40 x 5mm HV Nominal / highest 11/12 KV LV Nominal/highest 0.631 of IS-5 2 nos. rise of oil by thermometer 47o C Temp. neutral end Earthing conductor for transformer body Installations ( Indoor / Outdoor ) Type ( Auto / 2wdg / 3wdg) Rating Cooling ( ONAN / ONAF ) RATING No load voltage Delta .00% SYSTEM DATA System voltages 11 KV 0.winding Sec. line end HV wdg.Required on HV side Additional 10% of oil shall be provided in nonreturnable drums. 8 p.f.P.. side at 110% Rated voltage CURRENT DENSITY HV LV MAXIMUM FLUX DENSITY At rated voltage At 110% rated voltage EFFICIENCY % Load At U.8 p. side When excited from L. 50% Page 213 . Kg Kg fittings Kg mm Kg At 0.F. No load losses at 100% rated voltage and frequency WEIGHTS AND SHIPPING SECTION Core Oil Tank and Kg Total Size of largest package Weight of largest package % REGULATION At U.f.V.F.P.V. At 0. 100% 75% LOSSES (NO POSITIVE TOLERANCE) Load loss at rated current and 75 Degree C winding temp.DATA TO BE FURNISHED BY BIDDER Magnetisation current at rated voltage and frequency When excited from L. Specifications for DG Set Page 214 . Tests 10. Performance Requirements 7. Inspection 11. 5. 4. 2. Control Panel (s) 8. Data Sheets Page 215 . Drawings 13. 3. Packing and Despatch 9.List of Contents Specifications for Diesel Generator Set 1. Guarantee 12. Scope Codes and Standards General Requirements Diesel Engine Alternator 6. 1.2 4 DIESEL ENGINE 4. All required set of foundation bolts. governor performance and torsional vibration shall be in accordance with BS: 649 or approved equivalent standard. mechanical injection type and shall be complete with all necessary equipment according to standard practice. performance. nuts. IS:1460 Specification for diesel fuels. as specified in the data sheet. The horsepower rating. IS:4729 Measurement and evaluation of vibration of rotating Electrical Machines BS:5514/Reciprocating internal combustion engine driven AC Generators. The system should be complete with an oil cooler and duplex fine mesh filters. parallel operation. manually / automatically operated. IS:4722 Rotating electrical machines.1 The Diesel Generating Set shall be indoor type. The set shall consist of diesel engine coupled to suitable alternator having static excitation system and include all necessary accessories and control panel. etc. An engine-driven booster pump shall be provided to deliver fuel oil from the supply line to the fuel oil injectors through duplex filters or two full capacity filters. The equipment shall conform to the following standards of the latest edition: BS: 649 Diesel Engine for general purposes IS: 1000 Type testing of constant speed internal combustion engines for general purposes. guarantees of fuel consumption.2 Lube Oil System Automatic pressure lubrication shall be provided by engine-driven gear type pump. 4.1 The diesel engine shall be vertical.SPECIFICATION OF DIESEL GENERATOR SET 1 SCOPE This specification covers the design. IS: 1002 Performance of constant speed internal combustion engines for general purposes. and set of spanners and tools shall be supplied. designed for continuous operation. as specified. IS:3046/ IS:8528 3 GENERAL REQUIREMENTS 3. single acting. auxiliaries. The engine shall be complete with the following: Fuel Oil System A “Day Tank” of not less than 24 hours’ rated capacity with mechanical oil level indicator to indicate low and high levels shall be supplied. Hand pump shall be supplied for pumping and storing oil from barrels to “Day Tank” as and when necessary. IS:4691 Degrees of protection provided by enclosures for rotating electrical machinery. fabricated steel frame and with anti-vibration mountings. or two full Page 216 4. manufacture and testing of Diesel Generating Set. 2 CODES AND STANDARDS The Diesel Generating Set with all its components shall comply with the latest statutory regulations and safety codes applicable in the locality where the equipment will be installed.1. washers.1 . The engine and generator shall be mounted on a robust. 3. 5% to 4% of the nominal speed at any load up to full load. 4.6 Governing System 4.2 Electrical Starting System The Electrical starting system shall comprise of starter. The system shall consist of : i) ii) iii) iv) v) One 100% capacity A. The rate of frequency variation shall not exceed 0.1 Electronic type governor shall be provided for keeping constant speed of the engine even with variable loads. The starting system shall meet with the following requirements: 4.1.5 Hz in every second. Governing Page 217 .2 The exhaust system shall consist of an exhaust gas driven turbocharger.1. electric-motor-driven Lube oil priming pump is also to be provided. In addition.4.1 Compressed Air System – Not Applicable a) The air-starting system may comprise of a camshaft-driven rotary air distributor admitting air to a series of automatic air-starting valves fitted on individual cylinder heads. one no. Bellows. 4. b) The starting and stopping of the motor of the air compressor shall be controlled automatically by suitable pressure switches so that the Air Receiver always remains fully charged.3 Jacket Water system (If supplied) This shall be complete with air or water cooled heat exchangers.5. 4. if specified in Data Sheet.capacity filters and differential pressure gauge across the filters or pressure gauge on either side of the filters. exhaust gas silencer. The Lube oil system shall comprise of one particle detection filter. set reaches over speed between 110% to 130% of rated speed.5.1.G. one thermostatic valve to control automatically the temperature of lube oil inlet to engine.1. motor driven air compressor. etc.1.1. Ni-Cd battery and Static type battery charger and all necessary instruments and accessories. adapters. An over speed trip mechanism shall be provided to automatically cut off fuel in case the D.1. After-coolers for Compressor. An additional diesel engine driven air compressor shall also be supplied.1. 4.C. or an air cranking motor operating through a ring gear on the engine fly wheel. thermostatic control with alarm on high jacket water temperature and expansion tank. 4. suitable for the raw cooling water. Pressure Switches for automatic starting and stopping of the compressor. one oil sump and piping for the lubrication system.4 Engine Starting System Starting of the diesel engine shall be by electric starting system.1. if required. necessary piping. 4. Hand pump shall be provided for priming.4. motor. The nominal speed shall be adjustable by + 5%.6. as specified in Data Sheet. The governor shall have following features: a) The governor speed drop shall be adjustable between 3. An engine-mounted emergency stop push button shall be provided for tripping the engine. One Air Receiver of adequate capacity to supply air for six (6) starts of the engine. one safety valve. Solenoid operated valves for manual operation with start push button or automatically driven by an impulse given from control panel.1 Air intake filter and Residential type Silencer with Exhaust System shall be provided.5 Air In take & Exhaust System 4. b) Pressure gauges at Discharge of all auxiliary pumps.G. The voltage unbalance consequent to 25% unbalanced load between phases shall not exceed + 2% of the average terminal voltage.1. c) Battery charging Ammeter d) Starting switch key e) Emergency stop push button f) 5 RPM Meter cum Running Hour Meter ALTERNATOR 5. RPM Indicator / Tachometer and Tacho generator to trip D. as indicated in the data sheet and with class ‘H’ insulation with temperature rise limited to class ‘B’ level.3 5.1.6 5. etc. Instruments 4. Jacket water temperature at cylinder outlet or heat exchanger inlet and Jacket water temperature at heat exchanger outlet.4 5.system shall be suitable for parallel operation of the D.5 5. Page 218 5. Shunt-field Regulator and Automatic Voltage Regulator shall be provided as required.8 4.1 The following instruments shall be provided on engine mounted panel: a) Dial type thermometers with alarm and trip contacts. provided the power factor in any phase does not fall below 0. cooler inlet/outlet. The temperature rise shall be within the limits of class B insulation even when feeding 10% overload for one hour during every 12 hours’ run on full rated load with the cooling air at ambient temperature. Set with other set(s) or the mains supply as may be applicable. b) The governor shall be provided with an electrically operated speeder gear working on DC for remote adjustment of generator frequency. Lube oil cooler outlet.7 4.1 5. The alternator shall withstand without any damage a short circuit at its terminals for three seconds with excitation adjusted to develop rated voltage at no load. The field system shall have low inductance to allow good voltage regulation.9.1.2 The alternator shall be designed for the rating.9 Flexible Coupling with guard. The excitation unit shall have necessary protection for field discharge and easy arrangement to re-magnetise in case of loss of residual magnetism.7 . The alternator shall be of drip proof construction and shall have suitable fan for cooling. 4. The field winding shall be fully insulated from the core. provided rated current is not exceeded. set in case of over speed. for the following: Temperature of Lube oil at bearing. The alternator shall be capable of carrying an unbalanced load of 25% without injurious heating of any part. The alternator shall be externally regulated type with a voltage variation of + 5% of the rated voltage with + 2% frequency variation.1. voltage.8.G. The alternator shall be self excited through a suitable transformer rectifier combination with adjustable compounding to provide a flat or rising characteristic with load. 10 5. engine rpm.8 The line and neutral ends of the phase windings of the alternator shall be brought out on six suitably located terminals. Ammeter – Voltmeter phase selector switch. thermistor per phase. generator AC volts.4 7 ENGINE CONTROL PANEL The Engine Local Control Panel (ELCP) shall be mounted on Generator set. eight system diagnostic codes. fireproof and weatherproof (suitable for open to sky installation) construction.5. heat resistant type with sleek design with low noise level of 70 db. Vendor shall provide suitable clamping arrangement for connecting the cables so as to prevent short circuits by rodents. Therefore. environmentally sealed type having Micro processor based module for engine controls and metering. 6. Arrangement shall be made so that the space heater shall be cut out automatically. Voltages adjust potentiometer. The alternator frame shall be provided with two nos. engine running hours. The unit shall operate up to 110% of the rated speed over the entire range of output without undue vibration and noise. 500KVA and above rated Alternator shall be provided 2 nos. isolated from the neutral terminal.2 The D. The neutral shall be terminated on a fully insulated terminal and a separate Neutral bushing shall be provided out side the Alternator for connection of Neutral earthing strip. system DC volts. Cool down timer – adjustable 0 – 30 minutes.3 6. when the alternator starts running. high coolant temperature. over speed. generator AC Amperes and Generator frequency. etc. to be provided by Purchaser. It shall be capable of a peak output of 10% in excess of the rated output for a period of one hour after 12 consecutive hours of operation at full load without exceeding the specified temperature limits and with a fairly visible exhaust. The Acoustic Enclosure shall be of modular steel. powder coated. The unit shall meet with the updated CPCB norms of noise limits and Exceeding Mass Emission and Smoke norms. factory fitted acoustic enclosure is required as mandatory. over crank and emergency stop. Engine control switch. set shall be capable of starting from cold condition.12 6 PERFORMANCE REQUIREMENTS 6. Cable glands shall be provided on the enclosure to facilitate entry of the above cables.11 5. Coolant temperature. Page 219 . of earthing terminals.9 5. Energized to run or shut down the fuel control system.1 6. 5. The ELCP shall provide the following control and monitoring features: Programmable safety shutdowns and associated flashing LED indicators for Low oil pressure. LCD digital readouts for Engine oil pressure. Suitable size of cable and box shall be provided to accommodate the number and the size of the cables. 240V. 1 phase space heater shall be provided in the lower part of the stator frame. Indicator / Display test Switch.G. is indicated in the Data Sheet. 1 9. f) g) D. Vendor shall also perform the following tests at site to the satisfaction of Purchaser: .Voltage Regulator Response . 8 PACKING & DESPATCH The unit shall be packed suitably to facilitate transportation and installation. etc.5 sq.3 Routine tests for engine. Routine tests for Alternator. Set fails to start.Governor Response . the control panel shall shut down the DG set and give alarm and indication on Annunciator under conditions of: a) Lubrication Oil Low Pressure b) High Cooling Water Temperature c) Over Speed. 7. Over Crank d) Operation of the protective relays e) Excitation failure due to tripping of field breaker or failure of excitation voltage to build up. high voltage test. Vendor shall notify Purchaser or his authorised representative in writing at least fifteen (15) days prior to the schedule for inspection / tests. GUARANTEE Page 220 ..G. The control panel shall be provided with suitable cable glands for power and control cables for the sizes as indicated in the date sheet. like insulation resistance test.Various functional tests on Generator Control Panel and Engine Local Control Panel Vendor shall submit 6 copies of the certificates of routine tests and type tests for approval before despatch.Starting up and Interlock . FRLS PVC. the vendor shall repair the same free of cost. like fuel consumption test. single core wires. If any damage is caused during transport.3 The control system for the diesel generator shall be suitable for automatic mains failure starting (AMF) with a provision of manual starting. During transport. Low Coolant Level All control wiring inside the panels shall be carried out with 2. 9 TESTS Following tests as per relevant British Standards shall be carried out on the Diesel Generator: 9.Speeds adjust potentiometer. care shall be taken to avoid damage to paint or accessories of the equipment.AMF logics . 10 INSPECTION 10.mm Copper conductor.2 11 Inspection including witnessing of tests will be carried out by Purchaser or his authorised representative(s). 24 hours’ running test. 650V grade.1 10. etc. During the running of the set.2 9. materials. d) Piping Flow Sheets and Piping Layout and P & I Diagrams e) Foundation drawings f) Fuel Oil System with instrumentation and control.G. Operation.2 12.Vendor shall guarantee the design. 12 DRAWINGS 12. Page 221 . i) D. with write-up.3 13 The enclosed Data Sheets indicate the detailed technical and other requirements. The vendor shall also supply six sets of Instruction Manuals for Installation. workmanship and performance of all equipment supplied under the order for a period of twelve (12) months from the date of initial operation or eighteen (18) months after delivery at site. with write-up g) Lube Oil System with instrumentation and Control. Maintenance and Over-hauling. Vendor shall incorporate these and send within fifteen (15) days each drawing for final approval and subsequently for records and use. Set Instrumentation and Control System. with write-up h) Jacket water scheme with Instrumentation and Control. with write-up. One print of each drawing will be returned to vendor with owner’s/ consultant’s comments and required clarifications if any.1 Vendor shall submit four (4) copies of the following for Owner’s/Consultant’s approval a) Outline dimensional drawing with general arrangement b) Single Line Diagram with all details c) Electrical Schematic and wiring diagrams along with cable schedule and general arrangement drawing for Control Panel. whichever may occur earlier. 12. rise limited to Class-F) Drip -Proof Self. DIESEL ENGINE Rating Duty Governor Operating Speed Engine Starting Type of Cooling GENERATOR Rating Voltage Frequency Class of Insulation Type of Enclosure Excitation System Neutral Earthing STARTING SYSTEM Manual / AMF Starter Compressed Air / Battery System ENGINE AND GENERATOR CONTROL PANEL AMF Panel Erection and Commissioning : : : : : : To be given by the bidder to be quoted separately AMF Vendor to supply Battery System : : : : : : : 40 KVA 415 Volts 50 Hz. 47o C PAGE 222 .Excited solidly earthed : : : : : : * BHP – Vendor to specify Continuous Electronically operated 1500 RPM AMF starting Radiator Water Cooled : : : 150 KVA 1 No. H (Temp.DATA SHEET – 150 KVA DG Set GENERAL Rating Quantity Ambient Temperature max. 1 1.22 : 1.23 1.8 1.1 Type 1.5 DIESEL ENGINE AND AUXILIARIES (Design Features) Name of Manufacturer Rating Standard BHP Maximum Engine rating (site) Derating factors i) Altitude ii) Inlet air temperature iii) Humidity iv) Others Operating speed No.2 1. of strokes/cycles No.10 1.19 1.21 1.7 1.13 1.15 1.23.DATA BY BIDDER 1.17 1.2 Filters PAGE 223 .16 1. Lube oil pressure at pump discharge Minimum acceptable lube oil Maximum period for which the engine can operate without raw cooling water supply.11 1.23. of cylinders Arrangement of cylinders Rotation direction (viewed from driving end) Compression ratio Supercharging air pressure at rated speed Firing order (viewed from power take off end) J W Temperature rise at rated load J W Pressure (at engine inlet) Fuel system injector pressure Fuel system booster pump pressure Lube oil temperature at pump in engine sump.9 1.4 1.0 1.14 1.18 1. Fuel oil system : : : : : : : : : : : : : : : ) ) ) ) : : : : 1.12 1.20 1. 27 1.1 Manifolds a) Location b) Size c) Construction d) Material 1.27.23.3 Lube Oil Tank (Sump) a) Capacity b) Material c) Location 1.3 Day Tank a) Capacity b) Material c) Location 1.24.1 Type 1.25.27.24.25.24.24.23.24.2 Quality of water to be used 1.2 Exhaust Silencer a) Type b) Location : : : : : : PAGE 224 .24 Lube Oil System 1.3 Quantity of water a) Engine cooling circuit b) Lube oil cooler c) Turbocharger cooler 1.2 Filters a) Type b) Numbers c) Location 1.26 Air intake system a) Intake filter type b) Location Exhaust Gas System ) ) ) : : : : : : : : 1.1 Type 1.4 Grade of lube oil to be used 1.a) b) c) Type Numbers Location : : : : : : 1.5 Lube Oil Cooler 1.25 Jacket Water System : : : : : : : : : 1.4 Grade of Fuel Oil to be used 1.4 Make up Tank a) Capacity b) Material c) Location 1.25.25. Tube Length) 3.6 2. Temperature (outlet) c) Tube Side 1. Fluid circulated 2.1 2.9 2. Temperature (outlet) d) Heat Exchanger Capacity : e) Balance Water Tank capacity f) Circulating water pump GENERATOR AND ACCESSORIES: Name of the Manufacturer Design rating Continuous output rating Maximum rating Power factor Rated voltage Rated current/phase Speed Frequency Field current at rated output and voltage : : : : : : : : : : : : : b) 2.2 2.5 2. Surface Shell Side 1.8 2. Quantity fluid circulated 3.10 : : : : : : : : : PAGE 225 . Position (Horizontal/Vertical) 2. Size (Shell dia x Str.7 2.2 J Heat Exchanger Cooling water “in” a) Size b) Type 1.1 Day Tank a) Size b) Type Cooling water “out” a) Size b) Type 1.28.1.28. Temperature (inlet) : 4. Fluid circulated 2.29 Heat Exchanger (Shell & Tube Type) a) Constructional Features 1.3 2. Temperature (inlet) : 4.4 2.28 Terminal Piping : : : : : : 1. Quantity fluid circulated 3.0 2. Type 4. 14 : : : : : : : 2.2.11 Insulation class a) Stator b) Rotor c) Exciter Temperature rise above ambient at 50oC (by thermometer) a) Stator b) Rotor c) Cores WR2 of rotating mass in diesel engine generator. Generator Performance a) Full load losses b) Armature copper loss c) Core loss d) Stray losses Efficiency 1 /4 load a) 1 /2 load b) 3 /4 load c) d) Full load MAIN EXCITOR Rated voltage Rated current Ceiling voltage at zero load and rated speed Ceiling voltage at rated current and rated speed Excitation system response ratio Insulation Class a) Stator b) Rotor AUTOMATIC VOLTAGE REGULATOR: Type and Characteristics : : : : 2. : Generator Parameters a) Synchronous Reactance b) Transient Reactance c) Sub-transient Reactance d) Zero sequence reactance : e) Negative sequence reactance f) Open circuit field time constant g) Short circuit ratio : h) Resistance of field winding at operating temperature i) Resistance of stator winding at operating temperature.1 3.6 : : : : : : : 4.3 3. etc.15 : : : : : : : 2.5 3.0 3.13 2. exciter.2 3.4 3.16 3.0 4.1 : PAGE 226 .12 : : : 2. 2 5.3 6.1 Dead band (if any) PERFORMANCE GUARANTEE : Net electrical output at site after engine derating factors and auxiliary power requirements have been taken into account Fuel oil consumption a) Full load b) 75% load c) 50% load d) 25% load Lube oil consumption at rated load.7 5. less flywheel including standard accessories Weight of flywheel Weight of tank (fuel) Total shipping weight Weight of Generator Weight of Exciter Weight of outboard bearing : : : : : : 5.4 6.4.8 5.5 6. operation : Jacket water temperature “IN” to engine Jacket water temperature “OUT” from engine.10 5.2 6.11 6.4 5. Lube oil temperature “IN” to engine Lube oil temperature “OUT” from engine Freedom from vibration and noise Generator efficiency: a) Full Load b) 75% load c) 50% load d) 25% load Voltage regulator response Excitation at full load and under specified variation of voltage speed. lit/engine hr.6 5.0 6.1 6.9 : : : : : : : : : : : 5.7 : : : : : : : PAGE 227 .0 5.3 5.6 6. WEIGHT SCHEDULE : Weight of engine.2 5.5 5. 10 6.11 Weight of sub-base Weight of control panel Total equipment weight Heaviest single piece to be handled during erection and maintenance and its weight.0 7.8 6.6.1 : PAGE 228 .9 6. DIMENSIONS : After engine and generator assembled : : : : : 7. Specifications for MV Switchgear Panel PAGE 229 . DATA SHEET FOR MEDIUM VOLTAGE SWITCHGEAR PANEL PAGE 230 .List of Contents Specifications for MV Switchgear Panels 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 SCOPE CODES AND STANDARDS GENERAL REQUIREMENT MAIN BUS BARS: CIRCUIT BREAKERS AIR BREAK SWITCHES FUSES MOTOR STARTERS SINGLE PHASING PREVENTERS INSTRUMENT TRANSFORMERS INSTRUMENTS PROTECTIVE RELAYS AUTOMATIC POWER FACTOR CORRECTION RELAYS MISCELLANEOUS ACCESSORIES INTERNAL WIRING TERMINAL BLOCKS EARTHING TESTS INSPECTION GUARANTEE DRAWING AND INSTRUCTION MANUALS APPROVED MAKE OF SWITCHGEAR EQUIPMENT/COMPONENTS. E.) 2. 1. in particular. if any.1 SCOPE 1.C.2 1. manufacture and performance of the equipment shall comply with all Indian Standards. which may have been inadvertently omitted but fairly implied as required to make a complete assembly of the switchgear as shown in the drawing and the specification to make the unit properly operational shall be construed as required and covered in the Vendor’s scope.2 vii) viii) ix) IS:1248 IS:5578 IS:11353 - x) IS:8623 - PAGE 231 . Low Voltage Fuses Current Transformers Voltage Transformers Specification for electrical relays for power system protection. Motor Control Centre (MCC) or the combination of both of these (PMCC) and Power Distribution Board required to distribute power in the plant / building at medium voltage. Specifications for factory-built assemblies of switchgear and controlgear (up to 1000 Volts. General requirements for switchgear and controlgear for voltages not exceeding 1000V A. Guide for marking of insulated conductors. The drawings and specifications complement each other and what is shown or called for in one shall be interpreted as being called for in both. A. the equipment shall conform to the latest applicable Indian Standards and.1 This specification covers the requirement for Medium Voltage (MV) Switchboard or Main LT Panel or Power Control Centre (PCC). Guide for uniform system of marking and identification of conductors and apparatus terminals. Rules. the following: i) ii) iii) iv) v) vi) IS:13947 (Part-1 to 5) IS:9224 IS:2705 IS:3156 IS:3231 IS:4237 Low voltage switchgear and controlgear. I. Direct-acting electrical indicating instruments.1 The design. Statutory Regulations and Safety Codes currently applicable in the locality where the equipment will be installed.3 20 CODES AND STANDARDS 2. The enclosed drawings and / or data sheets form part of the specification. Material(s).C. Unless otherwise specified. 9 20 % additional space in the panel (in terms of vacant feeder compartments of various sizes).4 3. 3. to accommodate the future requirement.5. 3. Control switches.2 All identical equipment and parts shall be interchangeable.1 3.2 Individual feeder modules in multi-tier formation. 3.6 Space heater with thermostat and MCB in each vertical panel. meters and relays shall be mounted on the front door. The surfaces to be coated shall be chemically derusted and degreased at a temperature of 70o to 80oC. Separate metal labels shall be provided for switchgear modules.5.21 GENERAL REQUIREMENT 3. etc. 3.6 The switchgear unit shall consist of rigid structural frame enclosed by 2 mm thick cold rolled (CRCA) sheet steel.5. Approval for the type of label shall be taken from the Owner/Consultant. Curing shall be done in stoving oven at 180o to 200o C for 12 to 15 minutes ensuring a uniform and continuous coating.11 Each vertical panel should be divided into the distinct zones for busbars. metal-enclosed.8 Separate door for each feeder module. etc. all other equipment shall be mounted on withdrawable chassis with suitable guides for easy withdrawal. 3. modular type. Each vertical section shall comprise the following: Metal-enclosed busbar compartment.5 3.5. subjected to spraying of powder charged at about 90 KV through electrostatic guns. The switchgear shall consist of indoor.5.8 3. switches. The colour of the shade shall be 631 of IS 5.3 3. cable and busbar alleys of suitable sizes (minimum 300 mm width) shall be on the panel front side only. zinc phosphatised and then passivated at about 60oC and.5.10 totally front operated panel. 3. 3. 3. electrostatic powder spraying and curing. floor-mounted. 3. instruments. Current Transformers (CTs) and Voltage Transformers (VTs) shall be mounted on the fixed portion. 3. 3. feeders.3 Shrouded main and vertical busbars and individual feeder connection.5. totally front side operated vertical sections. if any.5. Structural framework with foundation bolts. power cabling. control cabling and power & control terminals. Painting shall be done by surface coating comprising pre-treatment.5. The switchgear shall be provided with removable cable gland plate (of minimum 3 mm thickness). 3. push buttons. compartmentalised (if not indicated specifically in data sheet).e. indicating lamps. after proper drying. Doors and covers shall be of 1.7 Sheet steel barrier between two adjacent vertical sections except for horizontal bus bar compartments. running horizontally throughout the length of the switchgear. relays.5 Horizontal wire way for control wiring.5.4 Vertical cable alley and busbar alley with doors or covers covering the entire height of the feeder module panel.7 3. as indicated in the data sheet.1 3. i.5. It shall be dust and vermin proof and shall be easily extensible on both sides. at the bottom shall be provided to mount the switchgear directly on concrete/steel channel base. All doors and removable covers shall be gasketed all around with neoprene gaskets.10 PAGE 232 . with brass cable glands and crimping type cable lugs.9 3.6 mm thick cold rolled (CRCA) sheet steel. For fully drawout / semi drawout execution. 11. Breaker OFF and Breaker trip on fault.5 4.12 22 MAIN BUS BARS: 4.11. In the case of fully drawout type withdrawable chassis. 3.3.2 5. Co-ordination shall be ensured between successive breakers. Panels. Separate supports shall be provided for each busbar. All control connections shall be of screwing-in type. The bus bars shall be provided with heat shrinkable sleeves and colour coded for identification.2 3. PCCs. The size of the neutral busbar shall be similar to that of phase busbars in the case of Main L. 23 CIRCUIT BREAKERS 5. visible with door closed.1. Maximum temperature of the bus bars and the bus connections shall not exceed 85oC. Wherever aluminium to copper connections is required.1. Main and Sub Lighting DBs. However.11 Feeder control and motor control equipment not incorporating circuit breaker shall either be of fully drawout.1.1 5.2 4.1 4.4 4. fully draw-out type. 300 mm clearance shall be provided between the finished floor and the bottom of the lower most feeder compartment.1. Emergency trip push button. and shall consist of the following: Shunt and/or series trip as specified in drawing/data sheet. as specified in the drawing/data sheet.7 Main bus bars shall be of uniform cross section in aluminium or copper as specified in the drawing/data sheet. all electrical power connections shall be of plug-in type. anti-tracking barriers shall be incorporated. PDBs.T. suitable bimetallic connections/clamps shall be provided. Mechanical OPEN/CLOSE position indicator. semi drawout or fixed type execution. In order to avoid any accidental hazards. `Green’ and `Amber’ indicating lamps for Breaker ON. Panel lifting lugs shall be of removable type and to be fixed with panel using bolts and nuts. the neutral busbar shall be of half size that of phase busbars in the case of Motor control centres.12 3.5 AIR CIRCUIT BREAKER These shall be air-break. PMCCs.4 5.1 5. all electrical power and control connections shall be of plug-in type. If common support is provided for all busbars.1 3.3 4.6 4. In the case of semi drawout type withdrawable chassis. `Red’. PAGE 233 .1.3 5. busbar compartments shall be protected with 3 mm thick hylem / Bakelite sheets. 2. Power-operated mechanism shall be of motor-wound spring-charging stored energy type.1.9 5.1 The moulded case circuit breaker (MCCB) shall be air break type and having quick make quick break with trip free operating mechanism.1.5.3 5. Electrical and Mechanical anti pumping and over & under voltage trip facility should be provided.1. Manual operating mechanism shall be of spring charged stored energy type or spring assisted type. Rotary type operating handle of MCCB shall be provided in front and should clearly indicate ON/OFF/TRIP positions and should have padlocking facility. `Test’ and `fully withdrawn’ positions for the breakers along with their indications on the breaker front facia. Housing of the MCCB shall be of heat resistant and flame retardant insulating material. Automatic safety shutters shall be provided to cover live contacts when carriage is withdrawn.5 PAGE 234 . Facility shall be provided for blocking under-voltage releases. The electrical contact of the MCCB shall be of high conducting non deteriorating silver alloy contacts.2. The Micro processor release should have over current / short circuit and earth fault protections along with their indications due to which the breaker has tripped.1. Relays shall have potential-free contacts.2 MOULDED CASE CIRCUIT BREAKER 5.6 5.1.1.1. 5.14 5.1.1.17 There shall be `Service’.15 5.2.16 5.11 5. 5.8 5.1. Indicators shall be provided to show `charged’ and ‘discharged’ conditions of the spring.10 5. The operating mechanism shall be trip-free.2. It shall be possible to with-draw the breaker only in open position.1.12 5. The breaker shall be provided with the microprocessor based release with breaker control through RS 485 port and communication with PC through universally used protocol if asked for in the drawing. independent of the speed at which the handle is operated. Emergency manual charging facility shall also be provided. CBCT shall be of cast resin type and of the same make of MCCB. The MCCB should have shunt trip release.1.7 5.13 5. Incase of MCCB with Earth Fault Protection.4 5.1.18 5.2 5. earth fault release with adjustable current setting facility and mechanical interlock facility.2. Compartment door of the breaker shall not open unless the breaker is in open position. 1. The electrical parameters of the MCCB shall be as per the description given in the appended drawings 5. 26 MOTOR STARTERS 8. Switch handle shall have padlocking facility in `OFF’ position.8 5.’ and two `N. short circuit or earth fault.C. All the Switches shall be provided with phase barriers and auxiliary contacts. electromagnetic type.5. faultmake. of auxiliary contactors should be added in the control scheme as per the requirement.2.O.2 8. group-operated.3 6.1 8. double break. The MCCB wherever called for in the appended drawings shall provide an earth fault relay.2 Fuse shall be of HRC cartridge plug-in type. defeat mechanism shall be provided for inspection purpose.2.1.1 8. 6.2.2.7 5. additional nos.6 The MCCB should be provided with adjustable type thermal overload release and adjustable type short circuit protection device.1 7. All other switches shall be of heavy-duty type.9 24 AIR BREAK SWITCHES 6. single throw. with visible indication of operation. It shall be possible to open the door only when switch is in `OFF’ position and it shall not be possible to close the switch when the door is open. fuse pulling handle shall be provided for each Switch-board / Power Control Centre / Motor Control Centre.2 6. PAGE 235 .3 Contactors Contactors shall be air break. load-break type.1. Main contacts shall be of silver faced copper. However.1 Switches shall withstand a short circuit current of value equal to the let-through current of the associated fuse for 1 second and peak short circuit current equal to cut-off current of the fuse.4 25 FUSES 7. control circuit and for remote signalling purpose and should have inbuilt indications for tripping due to over current. However. 1 no. Switches of motor feeders shall be of motor duty (AC23A). The MCCB shall provide required sets of extra auxiliary contacts for the indication circuit. Minimum Two `N. it will cut off all the three phases and thereby single phasing of the system is avoided.’ auxiliary contacts shall be provided for each power contactor. All the release shall operate on common trip busbar so that in case of operation of any one of the releases in any of the three phases. 4 8.2 8. etc. Facility shall be provided in the terminal blocks for shorting and earthing the CTs. PAGE 236 10. Reversing starters shall be suitable for AC4 utilisation category as per IS: 13947(Part-4/Sec-1) Thermal Overload Relays Starters shall be complete with three-element.2 10. the relay should be provided with Stator Ground Fault Protection. time-lagged thermal overload relays with adjustable settings.3 8. over temperature protection and locked rotor protection. ambient temperature compensated.1 8.2 Automatic star delta starters These starters shall comprise three sets of contactors and a timer relay. 8.1 8. A hand reset push button.6. separate from the stop push button.1 8. Current unbalance protection .4. Starters shall be suitable for AC3 utilisation category as per IS: 13947 (Part-4 /Sec1).2 8. The relay shall be current operated and hand reset type with separate hand reset push button.3.6 8.5. shall be brought out on the front of the compartment door.5.2 Direct-on-line (DOL) starters DOL starters shall be suitable for AC3 utilisation category as per IS : 13947(Part-4 /Sec-1) 8. Instantaneous short circuit protection. The ratings specified are indicative only and it shall be Vendor’s responsibility to ensure that the ratings offered are adequate for the relays/meters provided considering lead resistance. 28 INSTRUMENT TRANSFORMERS 10.1 CTs and VTs shall conform to the requirement of IS:2705 and IS:3156 respectively.3.4.2 27 SINGLE PHASING PREVENTERS Separate single phasing preventer also shall be provided in the starters.8.1 8. Thermal overload relays shall be of Auto / hand reset type.6.3 . in addition to the above standard protections. Under current protection. Reversing Starters – Not Applicable Forward and reverse contactors shall be mechanically and electrically interlocked. Micro Computer Motor Protection Relay– Not Applicable Starters shall be complete with Micro computer based Motor protection relay with display facility for the motors of 20HP and above rating and without display for motors below 20HP rating.for all the ratings of motors and for motors above 75HP ratings. The relay shall have over current protection (with medium tripping characteristics).5 8. Single phasing protection. CTs and VTs shall be of dry air insulated type. Remote fault alarm indicator. Operation time delay facility for 10-240 sec. KVA.4 VTs shall be provided with adequately rated primary and secondary fuses. 30 PROTECTIVE RELAYS 12. overload. No-volt relay features to immediately disconnect all capacitors in the event of power failure. over temperature. Facility to connect computer. KVAR.12 13.8 13. Memory back up to save the data in the event of power failure. Capacitor current at each phase. etc. Transducers with 4-20mA output should be used wherever Meters are not available with 4-20mA output.11 13. Injected KVAR to reach target power factor. Load Current at each phase. RS 232 serial port.mm size.1 1. incl. KVAR. All protective and tripping relays and timers shall be provided with fault display LEDs. Three phase sensing suitable for three phase-unbalanced loads. Frequency. 29 INSTRUMENTS 11.7 13. etc. suitable for flush mounting. 12.10 13. All Meter shall have communication facility through Rs485 or RS 232 port. current.1 13. etc.1 Relays shall be Micro processor based and suitable for flush or semi flush mounting with connections from rear. Load Analyser / Load manager shall have Communication port to interface with the Plant DCS / Control room. communication facility through 4-20mA Signal should be provided. 2. Watt-hour and Var-hour meters shall be suitable for 3 phase.9 13. over harmonics. Protective relays shall be in drawout cases.2 31 AUTOMATIC POWER FACTOR CORRECTION RELAYS APFCR Panel shall have intelligent Microprocessor based relay. Wherever communication through port is not available. abnormal values of voltage.4 13. Temperature.e. Power factor.6 13.13 PAGE 237 .5 13. Indicating instruments shall be of Digital type.3 13. balanced as well as unbalanced load and suitable for semi-flush mounting. 12 steps based on the requirement. Various protections i. 13. 4 wire system. Minimum 96 x 96 Sq. of all preset parameters & specified installation data Automatic Self-adjustment for C/K value. Power factor correction fault. Frequency.2 Auto self adjustment to any capacitor step value Multiple LCD data indication of Power factor at each phase(lead/lag). it shall possess salient features like – 13. The relay shall have auto manual selection feature and shall adapt the direction of CT besides. Alarm output for Capacitor or Contact failure.10. Voltage. KW. 2 14. Alarm Annunciator shall comprise flush mounted facia units with two lamps and series resistor and ground glass plate in front for inscriptions.5 Watts. 14. if specified in drawing/data sheet.4.1 All wiring inside the switchgear shall be carried out with 650V grade FRLS PVC insulated flexible stranded copper wires.32 MISCELLANEOUS ACCESSORIES 14.2 PAGE 238 .2 14. mushroom. The colour of push buttons shall be as follows: Start Stop (stay put. lockable type) All others Green Red Black 14.4.4. The alarm annunciation scheme shall operate as follows : Condition Normal On occurrence of fault Acknowledge fault Reset.3 All push buttons are required to have functional labels.5 mm2 Copper.1 Breaker control switch shall be : Spring return-to-neutral type with pistol grip handle Lockable in neutral position.4 14. Visual Off Flashing Steady Off Steady Steady Flashing Audible Off On Off Off Off Off On 15.4. Fault Not Cleared Lamp test Alarm Annunciation test 33 INTERNAL WIRING 15. Ferrules shall be provided on each wire. a common alarm bell and Accept / Reset / Test Push buttons.4 Alarm Annunciator Alarm Annunciator shall be provided. Indicating lamps shall be multiple LED type made from FR type polycarbonate material with Low voltage glow protection (up to 50V) and translucent lamp covers. Lamps shall be replaceable from front. Alarm annunciation scheme shall include facia units with relay for each fault. Minimum size of conductor for control wiring shall be 2.1 14. Push buttons shall be momentary contact type rated for 10A at 500 V AC.3 14. Fault Cleared Reset. The power consumption of each indicating lamp should not exceed 0. 3 Mechanical and Electrical Operation tests by simulating operating conditions as at site. Shorting links shall be provided for all C. Test for verification of calibration of protective relays thro’ secondary injection test Seven (7) copies of the routine and type test certificates shall be submitted for Owner’s approval before despatch of the switchgear 37 INSPECTION PAGE 239 . 20% spare terminals shall be provided.2 17.2 16.3 15.T.4 15.2 TESTS Vendor shall test the switchgear to conform to IS: 4237 with all components assembled and fully wired. High voltage test (2. The following routine tests shall be carried out on all the components and the assembled switchgear. Insulation resistance test. All non-current carrying metal parts shall be effectively bonded to the earth bus. Vertical / horizontal Al.1 18. The earth bus shall be of sufficient cross section to carry safely momentary short circuit current for 3 sec.5 All terminal blocks for power and control circuits shall be of 650V grade stud type and shall be properly separate from each other. Power connections above 100A shall be carried out with PVC insulated copper links.3 36 18.5 All wiring shall be terminated on terminal blocks with crimping type Copper cable lugs.1 EARTHING An earth bus extending throughout the length of the Switch-board / PCC / MCC/ PMCC / DBs / APFCR Panel shall be provided. 35 17. 17. Terminals shall be numbered as per wiring diagrams.4 16. Terminal blocks of different voltage groups shall be segregated and suitably labelled.1 16. 34 TERMINAL BLOCKS 16.3 16. Test for verification of calibration of releases thro’ primary injection test. as per relevant standards :a) b) c) d) e) 18.5 KV for one minute). terminals.15. wire ways shall be provided to run the control wires within the same vertical panel and / or between different vertical panels. along with the initial offer and four (4) sets of the following drawings for approval after award of contract : Complete assembly drawing of the switchgear. 21.3 21. will be carried out by Owner / Consultant or their authorised representatives. Final list of apparatus for each module. seven prints of each drawing marked “Certified for record and use”.3 PAGE 240 . elevation and typical sections with dimensions and location of terminals for external connections.1.1. workmanship and performance of all goods to be supplied under the order for a period of twelve months (12) from the date of initial operation or eighteen (18) months after delivery at job site. whichever earlier. bill of quantities.1.1. Vendor shall also submit seven (7) copies of `Installation and Instruction’ manual.1.4 21. Schematic diagrams with module/switchboard panel.19.6 21.1 Vendor shall submit two sets of G.A. 39 DRAWING AND INSTRUCTION MANUALS 21..5 21. terminal and ferrule numbers for each 21.1 19.1 21. SWITCHGEAR elevation and layout plan with floor openings and floor fixing arrangements. 38 GUARANTEE Vendor shall guarantee the design.1. materials. Manufacturer’s descriptive literature on various components used in the switchgear. Vendor shall notify Owner or his authorised representative(s) in writing at least fifteen (15) days prior to the schedule for inspection and tests.2 Inspection.2 21. etc. showing plan. standard product catalogues. One print of each drawing will be returned to vendor with comments and required clarifications. Vendor shall incorporate these and send within fifteen days. if any. including witnessing routine tests. drawings. make of materials.2 Wiring diagram for each module indicating terminal blocks and various apparatus. 3VL / Schneider – Equivalent / Control & Switchgear .FNX/ SIEMENS – 3KL8 / Schneider Equivalent / Control & Switchgear equivalent L&T – MNX / SIEMENS -3TF / Schneider Equivalent / Control & Switchgear equivalent L&T / SIEMENS / Teknic / Schneider L&T / SIEMENS / Teknic / Schneider Enercon (Conserve) / L& T / Trinity / Enercon (Conserve) / L& T / Trinity / Meco/AE L&T / SIEMENS / GE Elmex / Connectwell / Phoenix L&T / SIEMENS L&T/SIEMEN / Havells / Schneider/Indoasian L&T/SIEMENS/Havells / Schneider/indoasian Polycab / Finolex / Havells / RR Kabel / L&T / KEI Neptune Ducati. Unless approved in writing. L&T. PAGE 241 . Schneider EPCOS. Switch Disconnectors Fuse Units AC23A Duty : Contactors and O/L Relays AC3 Duty : Push Buttons Indicating lamps Load Manager/Multi function meter Meters HRC Fuses & base Terminals Timers MCB ELCB Wires Capacitors Protective Relays : : : : : : : : : : : : Areva / ABB / CSPC / L&T Selector Switches : Salzer / Kaycee Final selection of the make will remain with the Client / Consultant.40 APPROVED MAKE OF SWITCHGEAR EQUIPMENT/COMPONENTS. Asian.equivalent L&T . D Sine / SIEMENS . equipment/components of following makes only shall be acceptable: Moulded Case Circuit Breaker (MCCB) ICs = 100% ICu : L&T – DH. mm = 0.mm.0 1.2 3.0 ELECTRICAL DATA : : : : : : : : : : : : : 110V AC at MLTP.7 3.1 1.1 2.3 3. 240V AC at other Panels 240V AC 240V AC 240V AC 415V + / .4 2.1 3.10 3.2 2.9 3.11 1 sec short circuit withstand capacity Busbar current rating inside panel at Specified ambient temperature Busbars Busbars current density Busbars location Cable entry (Incoming & Outgoing) Earth bus size and material Busbars and cable alley Cable sizes Colour shade Feeder arrangement : : : : : : : : : : : As Per SLDs / Data sheet As indicated in the drawings / Datasheet Electro grade Aluminium Sleeved (heat shrinkable) 1 Sq.2 2.8 Amp at Top / Bottom section of the Panel Shall be informed later 50 x 6 Sq.8 3.0 2.10 % 50 Hz + / . of phases System fault level System earthing Control supply For ACB Closing and Tripping Coils For Protective Relays For indicating lamps For Alarm / Hooter For Panel illumination lamp For Thermostat For Contactor coils 3.5 2.6 3. 240V AC at other Panels 110V AC at MLTP.5 3. 240V AC at other Panels 110V AC 110V AC at MLTP.6 SITE CONDITIONS. Maximum ambient temperature Minimum ambient temperature OPERATING CONDITIONS Voltage Frequency No. : : 47 Degree C 06 Degree C 3.4 3.DATA SHEET FOR MEDIUM VOLTAGE SWITCHGEAR PANEL 1. Aluminium On front side of the panels As indicated in the drawings / Datasheet Powder coating – shade shall be 631 of IS 5 All panels are Single front type – Front operated PAGE 242 .3 % Three 35 KA at 415V Solid Earthing for 1 Sec.3 2. 12 3.15 Floor fixing Degree of protection for panel Maximum operating height Maximum Panel height : : : : Integral base frame IP 44 enclosure 1800 mm 2300 mm PAGE 243 .3.13 3.14 3. 0 15.0 4.0 Overall weight and dimensions of largest shipping section Weight : Length : Depth : Height : Recommended clearances Front Rear Above Clearance in air of main busbars.0 2.0 5.0 16.0 16.0 9.0 9.2 9.3 9.0 14.0 10.0 Make Type/designation Degree of protection Overall weight of complete Panel Overall dimensions Length Depth Height : : : : : : : kg mm mm mm 6.0 3.1 Busbar current rating at design temperature (50 Degree C) Main busbar material Main busbar size Main busbar location Vertical Busbar Details: Current rating/size Insulating material Earth bus size/material 1 min power frequency voltage 1 sec.0 8.1 9.TO BE FILLED UP BY VENDOR ALONG WITH OFFER 1.mm KV KA KA PAGE 244 .1 11.0 13.0 12.short circuit withstand capacity Peak dynamic withstand capacity AIR CIRCUIT BREAKER Make & Type (s) : : : : : : Sq.4 10. Phase to phase Phase to earth MAIN BUSBAR DETAILS : : : : : : : : : : kg mm mm mm mm mm mm mm mm 7. 1 At 415V.1 Closing time 16.1 17.11 17.10 17. AC-23 duty 17.6.3 17.10 Rated voltage & frequency Normal current under site condition Rated making capacity Rated breaking capacity Rated short time rating for 1.2 16.8 17.2 and at 415V Rated capacitor duty – Ic PAGE 245 .2 Opening time 16. if any CHANGE OVER SWITCH Rated voltage.7 17.5 17.13 17. Rated fused short circuit current Rated operational current 17.4 17. Duty cycle Type of operating mechanism Voltage and power rating for operating mechanism closing coil trip coil Operating time 16.9 16.16.6 16.2 At 660V.11 16.12 Mechanical operations Electrical operations (AC-23) Rated operational power at 415V Short circuit making capacity (Peak) AC breaking capacity at PF 0.9 17.3 16.10.0 17.2 17.7 16. AC-23 duty 17.6.6 Fixed trip/ trip free Number and Rating of breaker auxiliary contacts Details of releases.0 sec.8 16.0 sec.12 16.10. frequency & type Rated current under site condition Test insulation voltage Short time with stand current for 1.5 16.4 16. 6 18.contacts SWITCHES Rated voltage Rated current : : PAGE 246 : : : : : : : : : : : : : : : : : : : : : : : : Operations/hour Operations (at rated voltage) Operations.of aux.7 18.0 19. 19.10 19.2 19.12 19.1 20.2 18.4 18.0 18.1 18. Secs.13 19.9 19. VA at VA Secs.3 19.5 19.8 19. To be provided as required. P.0 20.4 MOULDED CASE CIRCUIT BREAKERS (MCCBS) Make & type (s) Rated voltage.18.6 19.F.1 19.8 19.7 19.15 20.14 19. frequency Normal current under site conditions : Symmetrical interrupting current Short time current and duration Operating mechanism Shunt trip Relays / Releases CONTACTORS Make Type designations Rated voltage Rated current : AC-3 Duty AC-4 Duty Thermal rating Making capacity Breaking capacity DC rating Switching frequency Life : Electrical Mechanical Coil consumption-pick up Coil consumption-Hold on Closing time Opening time No.5 18.3 18.11 19.2 . 0 21.0 AC23A rating Rated making capacity Rated breaking capacity Rated short circuit withstand current with max. THERMAL OVERLOAD RELAYS Make/type Setting range Type of operation ANY OTHER SWITCHGEAR.20.1 21.7 NOTE 21.2 21.3 22. : : : Direct/CT operated PAGE 247 .5 20.3 20.6 20.4 20.permissible rated fuses Mechanical life : : : : : : Above particulars are required for each rating of switch offered. IF ANY. Specifications for LV Cables PAGE 248 . List of Contents Specifications for LV Cables 1 2 3 4 5 6 7 8 9 10 11 12 General Code and Standards Climatic Conditions Constructional Requirement General Requirements Inspection Tests Guarantee Instruction Manual Data Sheet / List of Cables Quality Assurance Deviation PAGE 249 . 2 2.1 Code and Standards The cables shall comply with all currently applicable Standards. Unless otherwise specified.2 IS IS IS IS IS IS IS IS IS IS IS IS Method of test for cables : Part 62 Fire Retardant test for bunched cables IEC : Tests on electric cables under fire conditions IEC : Extruded solid dielectric insulated power cables for rated voltages from 1KV up to 30KV IEC : 540 & Test methods for insulation and sheaths of electric cables 540A and cords ASTM : D2863 Standard method of test for flammability of plastics using oxygen index method The cables and accessories shall also conform to the provisions of Indian Electricity Rules and relevant statutory regulations. in atmosphere having maximum ambient temperature and relative humidity as specified in data sheet. copper/aluminium conductors. approval of Fire Insurance Association and Electrical Inspector. 3 Climatic Conditions Cables shall be installed in air/ground. strips and tapes for armouring of cables Methods of test for cables : Mass of zinc coating on steel armour Specification of zinc Recommended current ratings for cables: Part – 2 PVC insulated and PVC sheathed heavy duty cables Drums for electric cables Method of test for cables : Part 58 Oxygen Index test Method of test for cables : Part 61 Flame Retardant test 2.1 General These specifications are for 650/1100 Volts grade solid/stranded. PAGE 250 . Electricity Rules. : : : : : : : : : : : : 1554 7098 8130 5831 3975 10810 Part 41 209 3961 Part-2 10418 10810 Part 58 10810 Part 61 10810 Part 62 332-3 502 PVC insulated (heavy duty) electric cables Cross linked polyethylene insulated PVC sheathed cables Conductors for insulated electric cables and flexible cords PVC insulation and sheath of electric cables Mild steel wires. PVC / XLPE insulated and sheathed galvanised round/flat steel wire armoured and PVC overall sheathed cables. cable shall conform to the following latest applicable Standards. mm shall be circular or shaped. Insulation shall be free from contamination and water voids and shall withstand all mechanical and thermal stresses under steady state and transient operating conditions. Conductor shall be solid for conductor of nominal area up to and including 4 sq.mm.mm and stranded beyond 4 sq. Control cables having 6 cores and above shall be identified with prominent and indelible numerals on the outer surface of the insulation. Requirement and methods of tests for armour material. The thickness of the insulation shall be as per relevant Indian standards. The thickness of inner sheath shall be as per relevant standards. 4. There will be no sheath for single core cables.3 Inner Sheath The inner sheath shall be applied over the cores by a method of extrusion and shall be of PVC conforming to the requirements of Type ST-1 PVC compound as IS:5831.4 4. PAGE 251 . aluminium / copper.2 Insulation The material of insulation shall be with PVC compound / cross linked polyethylene applied over the conductor by extrusion. the same shall be with H4 grade hard drawn aluminium round wire of 2. Cables with reduced neutral conductor shall have sizes as per table 1 of IS 1554 (part-1). Strand details shall be as below: 6 to 10 sq mm [CU/AL] 16 to 50 sq mm [CU/AL] 70 to 150 sq mm [CU/AL] 185 to 300 sq mm [CU/AL] 400 to 630 sq mm [CU/AL] 800 to 1000 sq mm [CU/AL] 7 strands 7 strands 19 strands 37 strands 61 strands 91 strands 4. 4.4 Armouring If armouring is specified for multicore cables.1 Constructional Requirement Conductor The material of conductor shall be Electrical grade high conductive. galvanising uniformity and dimensions of armour shall be as per relevant standards. compacted. Colour of the numbers shall be in contrast with the colour of insulation. If armouring is specified for single core cables.5 sq. the same shall be single round galvanised steel wires / galvanised steel strips as per the requirement.mm diameter. Conductors of nominal area less than 25sq. Outer sheath shall be of black colour. drum number.2 5. gross weight. voltage grade of cable. Wooden drums shall be properly seasoned and treated with anti rodent material and painted with good quality paint to increase the life of the drum. The embossing / engraving shall be legible and indelible. The thickness of outer sheath shall be as per IS: 1554 – part 1. C. external surface of which shall be embossed with voltage designation and manufacturer’s name at regular interval. The material of conductors shall be from annealed high conductivity copper/aluminium.3 Cables shall be supplied wound on non returnable wooden drums of heavy duty construction and of suitable barrel diameter and shall be covered fully with wooden battens. C shall be limited to data as specified in data sheets. customer’s name. 5 5. 5. trenches. ducts. Outer sheath with FRLS compound shall be provided for better fire resistance. conduits and for underground buried installation with uncontrolled backfill and possibility of flooding by water and chemicals. Ferrous parts used shall be treated with a suitable rust preventive finish or coating to avoid rusting during transit or storage. PVC / Rubber end caps shall be supplied free of cost for each drum with a minimum of twenty per thousand metre length. The maximum conductor temperature in deg.4. size. Conductor shall be of either circular or sector shaped stranded conductor or circular solid construction as specified in data sheet.1 General Requirements The cables shall be suitable for laying in trays. Drums shall be suitably marked with manufacturer’s name. rolling direction etc.4 Negative tolerance on cable drum length is not acceptable. Packing should be sturdy and adequate to protect the cables from any injury due to mishandling or other conditions encountered during transportation. handling and storage. Cables shall be suitable for keeping in a proper looped position for longer period without occurring of any damage to the insulations and armour. IS certification mark. Both cable ends shall be sealed with PVC / heat shrinkable end caps so as to eliminate the ingress of water during transportation.5 Outer Sheath This shall consist of extruded ST-1 flame retardant PVC compound having oxygen index value of minimum 30% at 27+ 2 deg. PAGE 252 . length of cable in metres. project title. 5. is resistant to termite and rodent attack. cable type. Sequential marking of the length of the cable in metres shall be provided on the outer sheath at every one metre. storage and erection. All routine tests.1 Inspection The cables shall be tested and inspected at the manufacturer’s works.5. routine.mm up to and including 300 sq. cables shall be supplied in following drum lengths: • • Medium voltage power cables up to and including 6 sq. before and after the manufacture. Manufacturer shall get approved all the test reports from Consultant / Owner before despatch of the cables.6 6 6.1 7. All the materials employed in the construction of cable. acceptance and special tested as detailed below. 1000 Mtr. shall be subjected to examination. Tests After completion of manufacture of cables and prior to despatch.mm Medium voltage power cables from 10 sq. Contractor shall notify Owner or his authorised representatives in writing at least fifteen (15) days prior to contractor’s scheduled inspection date. acceptance tests.mm • Control cables up to and including 27 cores 1000 Mtr. the cables shall be subject to type. The test requirements for insulation and sheath of PVC cables shall be as per IS:5831. The inner and outer sheath of XLPE cables shall be subjected to all the tests applicable for PVC cables. type tests shall be carried out as per IS 1554 part 1 and IS:7098 part 2. testing and approval by consultant’s / owner’s representative. Insulation shall be free from contamination and voids. 6. The consultant’s / owner’s representative(s) have free access to the manufacturer’s works for the purpose of stage and final inspections and will have the power to accept or reject any material on quality issues.5 The material of insulation shall be of PVC / XLPE as specified in Data sheet. Consultant / Owner reserve the right to witness all the tests with a prior notice from manufacturer. Unless otherwise specified.2 Seven (7) copies of type test and routine test certificates shall be submitted for customer’s approval before despatch. Also insulation of cores shall be colour coded for identification. 500 Mtr. PAGE 253 . 5.2 7 7. PAGE 254 .2 Deviation Deviation from specification must be stated in writing at the quotation stage. 10 Data Sheet / List of Cables The enclosed data sheets & list of cables indicate detailed technical requirement and bill of quantities / material takes off.1 12. duly certified by the site-in-charge. it will be assumed that the requirements of specification are met without any deviation. 12 12. 11 Quality Assurance Vendor shall submit their internal quality assurance plan followed for manufacturing of the equipment for approval of owner / consultant this shall be adhered to and shall be monitored by owner consultant during manufacture.8 Guarantee Vendor shall guarantee design materials/workmanship and performance for a period of twelve (12) months from the date of commissioning and handing over the installation to the Owner. In the absence of such a statement. whichever is earlier. Owner representative for satisfactory operation of the equipment or 18 months from the date of receipt of material at site. 9 Instruction Manual Catalogues giving all technical details and instruction booklets on installation in seven (7) copies such shall be furnished. Cables shall be packed suitably to facilitate installation / transportation and to prevent damage during transportation. Specifications for Lighting Panel (MCB Distribution Boards) PAGE 255 . SPECIFICATIONS FOR LIGHTING PANELS (MCB DISTRIBUTION BOARDS) 1 SPECIFICATIONS Relevant Indian Standard Specifications and Codes shall apply for Lighting Panel Boards and their components wherever such Standard Specifications exist. 2 mm thick CRCA sheet with necessary cut-outs for mounting the all Electrical components with adequate clearances. 50 sq. Neutral terminal strip and Earthing terminal strip and any other components as indicated in the Bill of quantities 2 GENERAL REQUIREMENTS i) Lighting panels shall be made of 14SWG sheet steel and painted with powder spray to prevent corrosion. All the Panel wiring shall be carried out using 660/1100V grade FRLS insulated. The incoming Switchgear component shall have suitable provision for terminating a looping cable (of max. (iii) The Switchgear components such as MCB. Potential Indicating lamps. 2 mm thick CRCA sheet on its front so that all the Electrical components and accessories can be accessed only after opening of the front cover. ELCBs. ELMCBs and HRC fuses (if asked for in BOQ). After opening of the front cover. shall be of 10KA breaking capacity with mid trip position for easy identification of the fault PAGE 256 .mm size) for feeding to another Panel in the zone. Lighting Panels shall be generally comprised of Isolators. The Panel shall be suitable for Top / Bottom entries for incoming and outgoing Cables/Circuits. ELCBs. The panel shall be approved by the Fire Insurance Association. set of separate phase terminal strips. flexible. etc. MCBs. multicore Copper conductors of reputed make and of rating considering the respective Isolator / MCB/ ELCB rating with all derating factors. ii) Lighting panels shall have properly hinged cover of min. the panel shall have another hinged door made of min. The components shall have shock proof and safe finger touch terminals. before executing the work. PAGE 257 . The degree of protection for the panel enclosure shall be minimum IP 54. iii) Lighting panels shall be suitable for 3 Phase. 415/240 Volts as per the distribution schemes indicated in the relevant drawings. shunt trip.conditions. wall / steel structure mounting type unless otherwise specified in the schedule of quantities ix) All the lighting panels shall be provided with two external Earthing terminals and suitable tinned copper lugs for connection to the Earthing system x) The neutral terminal block shall have sufficient number of terminals for all single-phase outgoing branch circuits. The components shall have lower watt losses and shall have provision for mounting the additional accessories such as auxiliary blocks. xii) Vendor shall furnish the GA drawings with supporting and connection arrangement and wiring diagrams with the detailed bill of quantities. for the approval of Owner / Consultant. viii) All panels shall be self-supporting. vi) Knockouts for branch circuit conduits or cables shall be provided on the top and bottom as required. vii) Tinned copper sockets shall be provided for the main connections to the panel. v) The lighting panels shall be completely dust and vermin proof. etc. xi) Means for easy identification of each and every branch circuit shall be provided. double door type and provided with neoprene gaskets and free of mechanical and electrical defects. 4 Wire. A Circuit Distribution diagram shall be pasted on the rear side of the front door of the panel for the easy reference. General Specifications for Electrical Materials for Electrical Installation Work PAGE 258 . b) The materials shall be of standard and reputed makes and shall conform to the requirements/approval of: i) ii) iii) iv) Fire Insurance Association. PAGE 259 . The colours shall be red. ii) iii) Ends of cables shall be properly sealed to prevent ingress of moisture.GENERAL SPECIFICATIONS FOR ELE. Sizes and types specified on the drawings shall not be changed without prior approval of the Engineer-in-charge. shall be replaced by suitable approved materials free of cost. yellow and blue for phases. the half core shall be a neutral conductor having reduced section in relation to the main conductor size. c) Relevant drawings and technical data. MATERIALS FOR ELECTRICAL INSTALLATION WORK 1 GENERAL a) All materials covered in these specifications shall be of heavy duty rigid type. black for neutral and green for earthing. neat in appearance and suitable for the purpose specified. iv) The insulation of conductors in the multi core cables shall be colour-coded to facilitate identification. shall be furnished to owner for his approval. Wherever specified as half core in multi core cables. LIGHTING AND CONTROL CABLES a) i) General All conductors shall be either copper or aluminium stranded and as specified on the drawings. where applicable. before supply of the items. Routine and type test certificates and technical literature shall be furnished for all items. 2 POWER. Indian Electricity Rules & Relevant Indian Standard Codes Electrical Inspector Owner and Engineer-in-charge. Any materials not approved by any of the above mentioned authorities. ii) 660 Volts single core unarmoured wires and cables with FRLS PVC / XLPE insulation shall conform to I. Copper as indicated in applicable drawings.S. d) i) Wires and Cables Single conductor wires for lighting shall be of minimum 2. b) i) Specifications 1100 Volts multi core armoured cables with PVC / XLPE insulation and extruded PVC inner and extruded FRLS outer sheath shall conform to I. iii) Single core for power receptacles shall be of minimum 4sq.v) All single core copper or aluminium cables shall preferably have stranded conductors unless otherwise specified.S. ii) All wires for lighting and power plug points shall be 660 Volts/1100 Volts multi stranded. e) i) Multi core Control Cable Multi core control cable shall be 660/1100 Volts PVC / XLPE insulated and extruded FRLS PVC inner and extruded FRLS PVC outer sheath armoured type of make as approved by Owner/Consultant. FRLS PVC insulated unarmoured type of make as approved by Owner/Consultant. vi) The insulation shall be suitable for operation in an ambient temperature of 45 Degree C with a maximum conductor temperature of 70 Degree C without any harmful effects.5sq.S 1554. PAGE 260 .S. of make as approved by Owner/Consultant. PVC / XLPE insulated and extruded FRLS PVC inner and extruded FRLS PVC outer sheath and armoured type.mm.mm. flexible. c) Multi core Power Cables Multi core power cables shall be of 1100 Volts grade. 694. Copper unless otherwise indicated on applicable drawings/ Datasheet. Insulation shall be of FRLS PVC unless otherwise specified in the drawings. Copper or 4 sq. as indicated in applicable drawings / Datasheet.mm.mm. Aluminium. iii) The size and number of cores shall be as indicated in the drawings / Datasheet. All flexible conduits shall conform to I.S. Flexible conduits shall be of steel reinforced PVC type and of make as approved by Owner/Consultant. free from burrs and sharp edges. Voltage grade of the flexible wires shall be not less the 660 Volts.S.3480 4 CONDUIT FITTINGS i) All conduit fittings shall have a smooth interior free from burrs and sharp edges. PAGE 261 . ii) iii) iv) All conduits shall have a smooth interior. Cu conductor.5 sq.5 sqmm. b) i) ii) Specifications All rigid PVC conduits shall conform to I. Specifications 9537. CONDUITS a) i) General All Conduits shall be of heavy duty PVC type.ii) Each core shall be of 2. f) i) ii) iii) 3 Flexible wires Minimum size of flexible stranded wires shall be of 2. The sizes of the conduits shall be as indicated in the applicable drawings. The conduits shall be of make as approved by Owner / Consultant. ii) All conduit fittings shall be of heavy duty PVC type as specified in the schedule of quantities. iii) Each conduit fitting shall have a gasket and screwed on rigid covered for hazardous areas. The gasket shall be of neoprene make. Gaskets need not be provided for conduit fittings for non-hazardous areas conduit fittings. 5 EARTHING SYSTEM a) i) Materials Earthing electrodes, buses, strips and wires shall be of galvanised steel/copper as per relevant drawings and I.S .specifications. ii) Sizes of the earth electrodes, the main Earthing bus and the Earth wires shall be as mentioned in applicable drawings/specifications. iii) Earthing clamps, nuts, bolts, etc. shall be of copper or galvanised steel as shown on the drawings. iv) Lightning finials shall be of G.I. / Copper (as per the schedule of rates and drawings) as per I.S. Specification 3070 and/or the type as indicated in the applicable drawings. 6 LIGHTING FIXTURES AND LAMPS a) Specifications Relevant Indian Standard Codes and Specifications shall be applicable for lighting fixtures and their components wherever such specifications and standards exist. Lighting fixtures shall also have the approval of the Fire Insurance Association. b) Type of fixtures i) ii) iii) iv) v) vi) Incandescent Fixtures Fluorescent Fixtures Compact fluorescent fixtures Mercury Vapour Fixtures Sodium Vapour Fixtures Metal Halide Fixtures PAGE 262 vii) c) i) ii) iii) Halogen Fixtures General Requirements for all fixtures All fixtures shall be suitable for 240 Volt, single phase, 50 Hz. supply. Fixtures of each type shall be of one make and identical with one another. All incandescent and mercury vapour lamp fixtures shall have porcelain lamp holders of suitable type and size for the wattage of lamp specified. iv) All fixtures shall be supplied complete with all necessary accessories and lamps. v) All fixture components shall be suitable to withstand a high humid atmosphere so that any damage due to corrosion, distortion etc. can be avoided. vi) All fluorescent fixtures shall have detachable reflectors with easy access for maintenance purpose. vii) Fluorescent and mercury vapour fixtures shall have super low loss ballasts, noiseless in operation similar to Super Low Loss type or Electronics type as approved by Owner/Consultant and also suitable condensers for high power factor. Chokes shall be suitable for a range of voltage of 210-240V. If necessary, tapping shall be provided for 210,220,230 and 240V. viii) All fluorescent fixtures shall have rotor lamp holders with cadmium plated spring loaded contacts. ix) All fixtures shall also have earthing provision made as per Indian Electricity Rules. d) Lamps General i) ii) All lamps shall be rated for 240V. Wattage shall be as indicated in the Schedule of Quantities. PAGE 263 Incandescent type i) ii) All lamps of 100watts or above shall preferably be screw type ES for medium base and GES for goliath base. All lamps shall be frosted type and glare-free. Fluorescent tubes All tubes shall be white type, shall have high lumen output (3250 lumens) and of make as approved by Owner/Consultants Mercury vapour lamp These lamps shall be colour corrected, avoiding glare and distortion. 7 LIGHTING PANELS - FOR NON HAZARDOUS AREAS a) Specifications Relevant Indian Standard Specifications and Codes shall apply for Lighting Panel Boards and their components wherever such Standard Specifications exist. The panel shall be approved by the Fire Insurance Association. b) i) General Requirements Lighting panels shall be made of 14SWG sheet steel and painted with powder spray to prevent corrosion. ii) Lighting panels shall be suitable for 3Phase, 4Wire, 415/240 Volts as per the distribution schemes indicated in the relevant drawings. iii) The lighting panels shall be completely dust and vermin proof, double door type and provided with neoprene gaskets and free of mechanical and electrical defects. The degree of protection for the panel enclosure shall be IP54 iv) Knockouts for branch circuit conduits or cables shall be provided on the top and bottom as required. PAGE 264 for identification. 8 MISCELLANEOUS ACCESSORIES a) i) ii) Switch Fuse Units Switches shall have H. the switches shall be weather-proof type i. PAGE 265 . vi) All panels shall be self supporting. The sizes shall be as specified and indicated in the applicable drawings. vi) A nameplate and/or designation number shall also be provided approximately on the top middle portion of the complete assembled unit.C. as mentioned in the drawings.R. iii) All switches shall be rated for 500 Volts and shall be metal clad heavy duty type and shall have neutral links. The switches shall be load breaking type suitable for breaking circuits on full load. IP55. wall mounting type unless otherwise specified in the schedule of quantities vii) All the lighting panels shall be provided with two external Earthing terminals and suitable tinned copper lugs for connection to the Earthing system viii) The neutral terminal block shall have sufficient number of terminals for all single phase outgoing branch circuits. ix) Means for easy identification of each and every branch circuit shall be provided.fuses for each phase as indicated in the drawings.v) Tinned copper sockets shall be provided for the main connections to the panel. iv) For exposed and outdoor locations.e. v) Nameplates of adequate size shall be provided to indicate the name of the equipment and/or the circuit number controlled by the switch fuse unit. Ratings are as specified in drawings. ii) Each socket outlet unit shall be provided with a single pole Industrial rotary switch of suitable rating unless otherwise indicated.b) i) Switches .S. iv) Unless otherwise specified switch housing shall have threaded hub for heavy wall rigid conduit as approved by the Owner/Consultant. The unit (of socket outlet and switch) shall be complete with necessary integral wiring and/or interlocking. The rotary switches shall be as approved by the Engineer-in-charge. receptacles and plugs shall be 3 pin. Switches above 5A shall be of rotary type. Approval from Engineer-incharge is essential before taking up fabrication.Single Pole Single pole general purpose switches shall be of 250Volts. Socket Outlets and Plugs .S. iii) The socket outlet and switch shall be encased in a suitable metal box. PAGE 266 . ii) Unless otherwise shown in the drawings. conforming to I. all single pole switches shall be of minimum 5 amperes rating.1293. vi) Each socket outlet shall be provided with an attached metal cap to cover the outlet when not in use to make the receptacle safe and weatherproof. specifications. 250Volts. v) c) i) Switch housing shall be provided with Earthing screw. The metal box shall be provided with earthing screw. conforming to I. iii) Each 5A switch shall have a porcelain base mounted in a sheet steel box with the operating knob projecting out of the box and held in position by a threaded tightening ring from the outside.Single Phase Metal clad type Single phase socket outlets. iv) v) The socket outlets shall have suitable Porcelain bases and metal cover. The M. the switch shall be of the rotary type of approved make and the combination of socket and switch shall be mounted in a M. The boxes shall be supplied with necessary cable /conduit entry at the bottom.S. e) i) Push Button Stations (General Purpose) Metal clad start-stop push button stations shall be of momentary contact type with provision for locking in ‘OFF’ position. v) The socket shall be suitable for surface or flush mounting as indicated in the drawings.sheet metal box suitable for conduit/cable entry. 500 Volts and of current rating as indicated on the applicable drawings. viii) The earthing terminal shall be connected to the encasing metal body of the unit.S.sheet metal box shall be provided with duplicate external Earthing terminals and tinned copper lugs for connection to the Earthing system. iv) This unit of switch with interlocked plug and socket shall be of a make being approved by Owner/Consultant. vii) For flush mounting. ii) Each receptacle and plug shall be coupled to a 3-pole & neutral switch to form a complete unit. PAGE 267 . d) i) Three Phase Receptacles – Metal clad type These receptacles and plugs shall be 4 Pole.vii) The earthing pin of the plug shall be the one to contact first and break contact last at the time of inserting or removing the plug as the case may be. iii) An interlock shall be provided to prevent the insertion or withdrawal of the plug with the switch ON. vi) A nameplate of adequate size shall be provided to indicate the name of the equipment connected. f) Flame proof Materials / Accessories All flame proof materials / accessories shall be of cast iron or LM-6 or suitable alloy metal. iii) Push button stations shall be provided with mounting holes for mounting on the wall or on a steel frame as shown the drawings. ii) Cable glands for Hazardous area shall be of flame proof. The enclosure shall conform to the requirements of IS : 2148 or IS : 6381 as indicated. Director General (Factory safety).ii) All contacts shall be silver tipped and be capable of interrupting minimum 10Amperes at 250Volts without damage to the contacts. vi) The push button stations shall be provided an Ammeter wherever mentioned in the drawings. 9 CABLE GLANDS AND CABLE TERMINATING ACCESSORIES i) All cable glands shall be of brass metal and screwed type and single compression type for indoor application and double compression type for outdoor application. Electrical Inspector. iii) iv) All cable sockets for cable termination shall be of tinned copper only. v) The degree of protection for the push button enclosure shall be IP 55 and the unit shall be provided with suitable rain hood and made weatherproof type is to be installed in outdoor area. Fire Insurance Association of India. Chief Inspector of Explosives (Nagpur). flameproof accessories shall meet all requirements of Indian Electricity rules. CMRS Dhanbad. Cable identification tags shall be of 6 mm thick Aluminium flat of suitable size with neatly engraved marking. PAGE 268 . double compression type. etc. Service and Labour Institute (Bombay). iv) A nameplate of adequate size shall be provided to indicate the name of the equipment and/or circuit number controlled by the push-button station. Further. S. Perforated or M. site fabricated.v) Cable trays. Ladder type as indicated on the drawings and the schedule of quantities. The sizes of the sockets shall be as per the approved drawings. the specification / data shown in the exclusive Specifications of the relevant item / equipment shall be given the second priority and the specification / data indicated in the General Specifications shall be given the last priority. shall be as per relevant I. spring washers. painted. shall be G. the specification / data shown in the bill of quantities shall be given the first priority. Cable trays. etc. bolts.S. Note – In case of any duplication of data / specifications of any item / equipment in the tender document. frames. 11. washers. shall be of galvanised steel.I. ii) All nuts. PAGE 269 . HARDWARE AND STRUCTURAL STEEL i) All hardware and structural steel being used for the various installations. etc. supports. Specifications for Electrical Installation Standards & Specifications PAGE 270 . 2. though not specifically mentioned. 8. 6. 7. cabling and other equipment including all outside conduits. 4. 3. 415 volts Switchgear.STANDARDS & SPECIFICATIONS 1 GENERAL a) Scope of Work The scope of work shall include the furnishing of all labour. Complete conduit and wiring system including supply of plugs and sockets for telephones. Installing and connecting motor starters where specified. wiring and incidentals as required.ELECTRICAL INSTALLATION . Complete branch circuit wiring installation for lighting receptacles and miscellaneous items. the following: 1. appliances. Temporary electric lights and powers facilities. Transformer. starters. Installing and connecting all lighting luminaires complete with lamps. superintendence and services required to construct and install a complete and operable electrical system as herein specified and covered by the accompanying drawings. Complete electrical power and lighting systems. if required on the instruction of Engineer-in-Charge. 5. PAGE 271 . switches. Supply and installing complete earthing system and test thereof. Materials or appliances. unless otherwise specified. The items of work include.T. but are not limited to. forming part of the electrical system and necessary for its operation. Switchgear. shall also be furnished and installed without additional charges. covering H. general purpose / weatherproof / flameproof as required. materials. lighting installation. c) Personnel All work shall be performed by Contractor under the direct supervision of a qualified person appointed by him and regularly engaged in the installation of electrical equipment. The drawings and specifications shall be considered complementary so that anything or any matter shown upon one or described by the other or fairly implied by either or both shall be done and performed as if shown upon and described by both. Discrepancies if any on different plans. 2. One set of drawings shall be kept as record drawings. HVAC. The contractor shall place in charge of the work at all the times during the construction. which constitute an integral part of the specifications.b) Drawings 1. as-built drawings shall be prepared by the electrical contractor incorporating these changes and four sets of such drawings shall be handed over to the Engineer-in-Charge at the time of final handing over. plumbing and piping contracting sections. Anyone not deemed capable by the owner shall be replaced immediately upon such advice. The work covered by these specifications is shown on the drawings. or between plans and actual field conditions or between plans and specifications shall be promptly brought to the attention of the Engineer-in-Charge at site for a decision before proceeding with the work. d) Tools and Testing Equipment The work shall be performed using tools and testing equipment designed and approved for the purpose. He shall also submit progress reports every fifteen days. The electrical contractor shall bring PAGE 272 . to avert possible installation conflicts. The following tools and testing equipments are recommended for carrying out the electrical installation work. The electrical contractor shall work in close co-ordination with the architectural. On completion of the project. 3. structural. A qualified and experienced electrical engineer who shall be responsible for keeping liaison and co-ordination between Employer’s personnel and his own men at site. All deviations of the actual proposed installations as shown on the drawings should be marked in red on these drawings. 5000 volts constant pressure type motorised insulation tester (megger) 1000 volts constant pressure type insulation tester (megger) 500 volts constant pressure type insulation tester (megger) Universal Earth Tester Welding Sets Cutting Tools Derricks.p.tools and equipment which may be necessary to carry out / complete the work.m. in addition to the tools and equipment suggested hereunder.) Constant pressure type continuity tester Wiremen kits Fitter’s tools Vices Die sets with difference dies Ladders (different sizes) Cable laying tools PAGE 273 . if asked for by Engineer-in-Charge. if required Jacks Electric Blower Drilling Machines (different sizes) Grinding Machine Cable Crimping Tool Relay testing kit Tong Tester Portable Voltmeter Pipe bending machine Phase sequence indicator Portable test lamps with prongs Tachometer (0-3000 r. Untill the particular part of the work is approved or certified complete by the Engineer-in-Charge at site. the contractor shall do such additional cutting and patching without any extra cost to employer. the contractor shall not take up the consequent work connected with the part work completed but uncertified as completed. cutting and patching is required. where possible. keep the excavation. installation or test shall be replaced or repaired by him without any additional charges and subject to the approval of the owner / engineer-in-charge. Materials and Equipment The materials and equipment to be installed as indicated on the electrical drawings and materials and equipment specifications. shall conform to the applicable codes and specifications mentioned in section I (f). Equipment damaged by the contractor in the course of handling. cutting and patching to a minimum. h) System of Working The work shall be carried out in a systematic way in proper sequence and order. If the electrical contractor fails to perform his work in the proper manner or at proper time and due to this. The contractor shall obtain the approval of Engineer-in-Charge for all the materials to be used by him prior to installing them. Priorities of work shall be fixed by the Engineer-in-Charge at site.e) 1. f) Codes and Specifications All materials and equipment shall be installed in accordance with the latest Indian Electrical Codes and Standards. Care shall be taken in handling the materials to properly protect them from damage during transport and installation. unless agreed otherwise in writing by Engineer-in-Charge. It will be the Contractor’s responsibility to obtain the approval of the electrical installation work from all Statutory Authorities. He shall. g) Cutting. Installation shall be approved by the Chief Electrical Inspector. Patching and Excavation The contractor shall do all excavation and cutting required for the installation work and shall be responsible for any damage that may be caused to the work of others. 2. additional excavation. All these priorities shall be strictly adhered to. The materials and equipment wherever specified and / or indicated as supplied by others shall be installed by the contractor as recommended and advised by the manufacturers of such equipment. All electrical materials supplied by the contractor shall be new. PAGE 274 . free of cost. All wires shall run from box to box without splices. e) After the installation. will be installed and connected by the electrical contractor. if it gets damaged during the installation or due to mishandling of equipment. He shall provide and maintain any other necessary constructions required to ensure safety of life and property involved in his work. assembly of the same will be the electrical contractor’s responsibility.SWITCHBOARD a) These shall be installed with utmost care as per the recommendations of the manufacturer and the drawings. Installation of wires and cables shall be in accordance with I.T. 732. c) If any switch bends is supplied in sections. The wire / cable being laid shall be in one length. assembly and connection.S.i) Protection The contractor shall furnish and place proper guards for prevention of accidents. All panels and modules shall be cleaned by blower before energising. Care shall be exercised to ensure avoidance of any moisture in terminations. PAGE 275 . if received separately. b) All connections shall be made as per vendor’s drawings and before commissioning. over load and relay settings shall be adjusted as directed by the equipment supplier / Engineer-in-Charge. the tightness of all connections shall be checked. The electrical contractor shall be responsible to replace or repair any part. Relays and instruments. They shall be pulled in or laid in such a manner that the insulation is not damaged at the time of installation or in service.10118. and straight joints shall be avoided as far as possible. 3 WIRES AND CABLES a) General i. d) Installation of all switchgear shall conform to IS . 2 L. Sharp bends shall be avoided. No wire or cable shall be run through any equipment foundation unless specifically indicated in the drawings. iv The colour code of wires shall be same throughout the installations and shall be approved by the Engineer-in-Charge. without dependence on the crimping. copper.Insulation shall be removed for making terminations in such a manner that the conductor is not damaged. Minimum bending radius shall be 12 to 15 times the outside diameter of the cables as recommended by the cable manufacturer.mm.mm. asbestos barrier shall be used between pipe and cables. ii. grease or compound other than powdered soap stone shall be used to facilitate the pulling of wires. iii Minimum wire size shall be 2. The termination shall be mechanically secure. Above 10 sq. the above scheme shall be achieved by the use of colour bands provided by the electrical contractor. size. the neutral conductors shall be identified. if used. shall be non-corrosive and of a make approved by the cable or wire manufacturer. The armouring of all armoured cables shall be electrically continuous from Switchgear to equipment and shall be terminated by an appropriate gland fitting and grounded at both ends. vi No oil. or directed in writing by Engineerin-Charge. All wire and cable runs under (i) poured concrete or road beds and (ii) passing through walls shall be in (i ) RCC pipes and (ii)conduit sleeves respectively. PAGE 276 . Cables shall be kept at least 300 mm away from steam or other hot lines. Solder and soldering flux. The current carrying ability of the terminations shall be equal to or greater than the wire / cable being terminated. Conductors shall be clean and free from burrs. Where closer than this.5 sq.) v Where colour coding is not practicable or possible. without dependence on the solder. (Where more than one neutral is carried in the same conduit. Buried cable shall be installed with sufficient slack in the trench along the cable length. all wires shall be stranded. The actual number of wires installed for each circuit and the required size of conduit shall. etc. iv This part of the specifications cover the responsibility of selecting the proper branch circuit designation in the panel boards and to install the branch circuit wiring in accordance with the phasing sequence as shown on the drawings. M. Wires connected to the same phase and for the required neutral only can be grouped in one conduit. be as required to accomplish the specified results as required by the manufacturer of the said control equipment. Special permission shall be taken from the Engineer-incharge for termination with soldering method. channels. so that the loads are balanced across all the phases as closely as possible and to cause minimum unbalance in the panel board neutral wires. iii No single core wire alone shall run in any conduit unless clearly shown in the drawings.C. however. b) 415/240V System i Wires drawn in conduit will be unarmoured. is to be done preferably with solderless tinned copper terminal lugs duly crimped and using petroleum jelly at all connections. ii The number of wires and conduit sizes indicated for the various circuits (control. etc. PAGE 277 . vi Termination of wires and cables at main boards. No splices or joints shall be permitted in either feeders or branches except at the outlet of accessible junction boxes.vii The electrical contractor shall arrange all cables and wires in neat formations along the wall or in suitable cable trays as shown and indicated in the drawings. Cables laid in trays or buried in the ground shall be armoured. fixtures. alarm and signal) were decided for a general scheme of wiring. If any changes are to be made. for lighting installation. including supply and installation of all supporting steel work like angles. and painting of the same. approval of the Engineerin-Charge is essential. v No wire shall be pulled until the complete conduit is installed.Cs lighting /power panels. if shown on the drawings. and other lower voltage cables shall be 600 mm deep or as specified in the drawings. 5 MOTORS a) Normally. and L. A two-inch layer of sand or clean earth shall be placed at the bottom of trench to avoid sharp objects coming in contact with the cables. one trench may be used. the higher voltage cables shall be installed at 900 mm and then the trench shall be filled to 600 mm with sand and pebbles and the low voltage cables shall be then installed. d) Cables shall be laid with slight slack in the trench to allow for the settlement of earth. along with the driven equipment. These markers shall extend above the grade by 25 mm.T. e) After confirming with the Engineer-in-Charge. High voltage cables shall be spaced minimum 75 mm on centres.T. PAGE 278 . cables shall be 900 mm deep and for L. he shall co-ordinate with the other contractor to align the motor properly with the driven equipment. Concrete markers shall be placed at each bend and at a approximately 15 meters’ intervals along straight runs to show the location of the cables. shall be provided by others. Where both H. Care should be exercised to avoid contact with sharp stones and other heavy objects in the trench. rollers or a greased wooden trough should be used to reduce friction. c) After the cables are installed. place a layer of bricks or concrete tiles over that and backfill to grade. cover the cables with 150 mm of rock-free earth or sand. In that case.4 BURIED CABLES a) Only armoured / cables shall be buried directly in the ground. necessary loops shall be made at the locations indicated by him.T. Trench for H. f) Concrete-lined cable trenches for cables inside buildings. A series of sleeves may be necessary to guide the cable around corners.T. cables follow the same route. motors may be installed by other contractors but whenever the electrical contractor installs a motor. b) When it is necessary to pull the cable into the trench. b) Lighting panels and lighting fixtures shall be installed as shown in the applicable drawings. paint. Conduits and fitting shall be cleaned to remove sludge.C. 7 CONDUITS a) All conduits shall be heavy duty. 50 cycles A. The tubular poles and cable box shall have a primer coating and two final coats of Al. prior to installation. d) Any lighting fixtures so located that the light from them would be obstructed by pipes or other objects shall be brought to the attention of the Engineerin-Charge or his authorised representative for necessary correction or change in location as may be desired. dirt or trash from the inside. 6 LIGHTING a) The lighting system will operate from 415/240 V. PAGE 279 . Minimum size shall be 19 mm unless specifically stated otherwise. All branch circuits shall be operated on single phase 240 V supply. c) All lighting circuits will run in rigid PVC heavy duty conduits unless otherwise indicated on the drawings. In case belt driven motors are connected directly with cable. e) The street light fixtures shall be installed on R. / steel tubular poles as per details in the drawings. then some slackness in the cable shall be provided. Lighting branch circuits will be supplied from miniature circuit breakers in the lighting panel as indicated in the applicable drawings. d) Installation of motors shall conform to IS-900. supply.b) The electrical contractor shall be responsible for checking and correcting the direction of all electrical motors connected by him. PVC as specified in the schedule of quantities.C.C. c) At least 300 mm.4 wire. length of flexible conduit shall be provided before connecting cables / wires in conduit to the terminal box for all motors which are belt driven. 3 phase. Where supported on masonry walls. Each conduit run shall be completed before the wire or cable is pulled in. d) In no case shall conduits be fastened to other pipes or installed in such a manner as to obstruct the ready removal of pipes for repair or replacement. Whenever conduit enters outlet boxes. Bends shall not be less than 6 times the nominal size of the conduit. switches or conduit fittings. Special permission shall be taken from the Engineer-in-Charge for using hot dip galvanised screws. PAGE 280 . columns or partitions shall be secured with hot dip galvanised C-Clamps or saddles and back spacers. an offset shall be formed on the conduit as close to the fittings as possible. floors screw anchors or lead anchors. Conduit half straps (CClamps) attached to masonry or concrete walls. These straps and hangers shall be fastened at each 400 mm length. 732.b) The conduits shall be securely fastened by means of straps and hangers designed for the purpose.S. panels. c) All conduit bends shall be made with conduit benders or hickies designed for the purpose. Chases in the wall shall be done before the plaster work is done by civil section. The maximum distance between pull points shall be 90 metres but this shall be reduced by 15 metres for each 900 bend. Conduit runs on walls. Before wires are drawn into conduits. e) All conduit openings shall be capped with steel / PVC caps (conduit plugs) during or immediately after installation. Screws used for fixing C-Clamps on to spacers shall be of brass only. grooving in the wall shall be neatly carried out by electrically driven cutter only and be of ample dimensions to permit the conduits to be fixed in the manner desired. exposed conduit runs shall be in straight lines parallel to or 900 to the building or pipe racks in which they are running . the conduit shall be spaced at a minimum of 6 mm from the wall using galvanised mild steel spacers. Conduit installation should conform to I. the conduits shall be thoroughly cleaned by use of a swab or blown out with compressed air. pull boxes. and after laying of conduit in wall. They shall be free from creeps and flattening. In general. the chased portion should be filled in by electrical contractor with suitable material and to the satisfaction of the Engineer-in-Charge. A maximum of four 900 bends only shall be used from pull point to pull point. In concealed conduit system. f) g) h) All outdoor conduit fittings shall be provided with neoprene gaskets. iv v NEUTRAL CONDUCTORS SHALL NOT BE USED FOR EQUIPMENT EARTHING. j) Suitable inspection boxes shall be provided to permit periodical inspection and to facilitate removal of wires when necessary. iii All equipment to be earthed shall be cleaned down to bare metal before attaching the ground wire. tanks.i) Fixing of conduit pipes in chase should be done by means of staples or saddles not more than 400 mm apart. PAGE 281 . Conduit drops going out of the wall will have to be made good by the contractor at his cost without damaging / weakening the building structure. Typical methods of earthing as per standard drawings. buildings and other metal structures that may receive lightning stroke or develop a static charge shall be earthed. 8 EARTHING a) General i ii All electrical equipment shall be earthed as per details on applicable drawings. k) Positions of lighting panels. process pipe lines. will be adopted for the earthing. l) The heights for switches and receptacles are as indicated on the respective drawings / standard notes. All metal vessels. as indicated in the applicable drawings. the positions of these shall be changed without any extra cost. m) All conduit drops from ceiling to the wall must be nearly in the centre of the wall. If desired by the Engineer-in-Charge. shown in drawings shall be adhered to. sockets etc. as per details on applicable drawings. All earthing connections shall be carried out in an approved manner and with specified materials. switches. xiv The earth pit centre shall be at a minimum of 2 metres distance from the nearest building. Cu. xi Earthing wires and cables shall be terminated on the earth bus with solderless cable sockets with silicon bronze / G. xv The neutrals of transformers shall be connected to separate earth electrodes.I. earthing pits. xii Each earthing wire shall be in one length from the equipment to the earth bus. wire unless stated otherwise on the relevant drawing. ix x Copper strip if used shall be tinned at the joints. The loops will be effectively earthed by means of earthed electrodes. However. PAGE 282 . Distance of not less than 3 meters shall be maintained between centres of two earth pits.vi The entire plant shall be earthed by a series of ground loops. viii Sizes of the earth wires shall be as shown in the applicable standard drawings. Armouring of cables shall be earthed at both ends through suitable cable glands. vii All earth connections shall be applied bitumen compound if welded with the system earthing grid / equipment. The earthing electrode and pits shall be in accordance with IS: 3043. earthing conductor and Cu. welding should be avoided as far as possible. xvi Specialised Earthing shall be provided to the sensitive equipment by means of dedicated Cu. bolts. b) 240 V Equipment i All 240 V equipment shall be earthed with minimum one number of 12 SWG cu. earth busbar mounted on the insulators. xiii Pipe electrodes in earth pit as per standard drawing shall be provided unless otherwise indicated in the relevant drawings. transformers. pipe racks. hoist rails. ii Earth strip extending above the floor shall be protected from mechanical injury by running it through GI pipe sleeve to at least 300 mm height. iv All three phase receptacles shall be earthed with 8 SWG G. v c) All street lighting poles shall be earthed as indicated in the drawings. PAGE 283 .. Outside the building. i All motor frames. a minimum of 300 mm of cover shall be provided. one number 12 SWG. 9 RECEPTACLES AND SWITCHES – COMMERCIAL TYPE Conforming to IS 3854. 415 V Equipment All 415 V equipment shall be earthed by 2 independent paths to earth through earth wires. aluminium or bare copper where buried. motor control centres and equipments shall be effectively earthed as shown on the drawings and in accordance with the latest Indian Codes.I. IS 2500 IS a) All single pole switches shall be commercial modular type and shall be connected to phase wire only. etc. supports. cabinets. iii The entire conduit system. copper wire shall run inside the conduit for earthing. iii Fluorescent fixtures and all other fixtures provided with earthing terminals shall be earthed by 12 SWG copper wire. wire or as specified in the drawing. as shown on the applicable drawing. The earthing wire shall be connected to the earthing screw on the switch or receptacles by a solder less cable socket duly crimped. IS 3854.I.ii For lighting circuits in conduits. shall be effectively earthed. The earthing conductors shall be of the sizes as specified on the drawings and be of G. iv Switch and single phase lighting receptacle housings shall be earthed with 12 SWG copper wire. 1293. c) All three phase receptacles shall be wired with the same sequence of rotation of phases. if it is called for. e) In general. all receptacles and switches shall be mounted at a height of 600 mm from the finished floor level unless otherwise shown in the drawings.S.e. PAGE 284 . box. Switches of different phases shall be mounted in different boxes. If recess or opening is not provided where it is required.) should have an indicator for the separate identification. DG set. 11 EMBEDDED OR RECESSED EQUIPMENT The electrical contractor shall take special care to co-ordinate this work with the civil contractor. 10 PUSH BUTTON STATIONS The contractor shall check the actual location of the push-button stations in the field so that the mounting channel does not interfere with the removal and maintenance of the motor or equipment. the electrical contractor may have to provide such recess or opening. But. then these should be all mounted in a common hot dip galvanised M. g) Switches proposed to operate on emergency power (i. they shall be located “on the lock side” ensuring that the switch board is not covered or hidden by the door. without any additional cost. f) Where more than one switch of the same phase are shown at one place.b) The switches shall be mounted in such a way that circuit is ON when the knob is pressed in at the bottom. the electrical contractor shall draw the attention of the Engineer-in-Charge at site to this fact. etc. d) The electrical contractor shall consult the architectural plans to check for door swings. Where switches are located near doors. b) Check whether all parts and accessories are supplied by the manufacturer. as per the packing list and purchase order and report to the Engineer-in-Charge. PAGE 285 .12 a) BATTERY AND BATTERY CHARGER Inspect battery and battery charger thoroughly for any damage to meters. push buttons or to the panel and report to Engineer-in-Charge. Check that the electrolyte (acid) is supplied in a separate container by the manufacturer. Inspection & Field Tests of Electrical Installations PAGE 286 . All testing instruments shall be calibrated and certified for accuracy by competent authority. The installation must pass all inspection and will be subject to the approval of the Engineer-in-charge and the concerned local authorities. devices and wiring have been correctly installed. meters. requirements of Fire Insurance. Local Rules and Regulations. freedom from grounds and shorts and the proper operation of the equipment. Engineer-in-charge reserves the right to approve the test results before circuits or equipment will be energised for the first time. then they must be dried to obtain the required insulation resistance values. instruments. etc. the contractor shall make suitable tests to establish to the satisfaction of the Engineer-in-charge that all equipment. PAGE 287 . Approval of the drying methods shall be obtained from Engineer-in-charge before applying heat. relays. phasing. adjustments and wiring of all equipment installed and/ or connected under the contract including electrical equipment supplied by others. are in satisfactory condition and will operate as intended. b) Inspection and testing shall be carried out to ensure that all equipment and materials have been installed as required and as per the relevant International Standard Specifications and Codes. temporary wiring and labour to perform all required tests. c) Before the electrical facilities are placed in operation. f) If motors record low insulation resistance.1 INSPECTION & FIELD TESTS OF ELECTRICAL INSTALLATIONS The work to be performed under these guidelines cover the quality assurance plan for the inspection and testing of electrical installations. Chief Electrical Inspector and any other authorities having jurisdiction. d) All tests shall be performed by or under the direct supervision of men qualified for carrying out inspection and testing. e) Engineer-in-charge reserves the right to witness all tests. to determine proper polarity. 2 a) GENERAL REQUIREMENTS The electrical contractor shall furnish necessary meters. and he shall be informed in this regard two weeks before the tests are to take place. if any. the equipment is ready for testing.T. the date of performance and name of the person in charge of the test. j) Before commencement of any test. Minimum acceptable value shall be 1 Mega ohm.1 TEST PROCEDURES MEDIUM VOLTAGE SWITCHGEAR MAIN L. All tests described herein shall be recorded on forms provided or agreed upon by Engineer-incharge.C. in general. Each test shall be held until constant reading is obtained. a visual inspection of the material / equipment is to be made to determine that all components are installed as per drawings and in a neat and workman-like manner and that. b) Before switchgear is energised. k) Contractor shall submit all formats for tests to be conducted on each equipment/system in accordance with these specifications for approval to the Engineer-in-charge / Consultant before entering the test readings. 3 3.g) All results of the tests shall be recorded on prescribed test data sheets. control circuits shall be measured from phase to earth. Test reports shall include. all equipment shall be thoroughly cleaned by blower and checked for proper and rigid connection of termination. Minimum time shall be ten seconds. Measurements shall be repeated with circuit breakers in operating position and contacts open. PAGE 288 . the contractor shall isolate the fault and shall take necessary steps to eliminate the fault to the satisfaction of Engineer-in-charge. Minimum megger reading shall be 10 Mega ohms. SWITCH BOARD / POWER CONTROL CENTRE / POWER AND MOTOR CONTROL CENTRE / DISTRIBUTION BOARDS a) Before switchgear is energised. for each test. fixing of foundation bolts. the insulation resistance of each bus shall be measured from phase to phase and from phase to earth. etc. the insulation resistance of all D. All defects through faulty workmanship of contractor or of equipment and material supplied by him shall be corrected or replaced at his own expense. h) Before starting the tests. I) In case of fault. iii. ammeter and voltmeter as required or by using a suitable relay test set having good wave form. f) g) Test the operation of tie breakers / bus couplers.c) Each adjustable protective relay shall be set. push button or operating handle. the following tests shall be performed on each circuit breaker in its ‘test’ position:- i. PAGE 289 . d) Test all current transformer secondary circuit by applying current (thro secondary injection test) to transformer secondary windings and verifying that relay(s) and/or meter(s) operate properly. where provided. Each circuit breaker shall be drawn out of its cubicle and shall be closed manually. Close and trip circuit breaker from its control switch. ii. Settings. All adjustable direct acting trip devices shall be set using values given in the approved relay settings for the job. ii. and then its insulation resistance shall be measured from phase to phase and from phase to earth. calibrated and tested by using a cycle counter. Contact alignment shall be checked and adjusted where necessary in accordance with manufacturer’s instructions. The following tests shall be performed on all circuit breakers before they are operated:i. Test operation of circuit breaker latch and check switch. load box. e) Test all the relevant circuit breakers for proper interlocking operation. The sequence of interlocking is as indicated on single line diagram. h) Before switchgear is energised. calibration points and test points shall be in accordance with values given for the approved relay settings for the job. the insulation resistance on both the “line side” and “load side” of each contactor shall be measured separately from phase to phase and from phase to earth. which would cause a lockout to occur. All automatic control operations and interlocks shall be tested for correct operation. the insulation resistance of each bus shall be measured from phase to phase and from phase to earth with disconnecting devices. the supplier should report the same to the Engineer-in-charge for suitable action for replacement. iv. v. 3. b) Contact alignment of each contactor shall be checked and adjusted where necessary in accordance with manufacturer’s instructions. Trip breaker by manual operation or by applying current or voltage to each of its associated protective relays. all test results shall be recorded in standard format approved by Engineer-in-charge. witnessing site engineer and contractor’s representative. Repeat measurements with devices closed but with contactors open. If still these are found to be not in working condition. PAGE 290 . polarity. Any improper operation of these indicating lamps / instruments shall be corrected by checking fuse / connections. DCDB Before energising. c) Before energising. i) After completion of tests. MOTOR CONTROL CENTRE. Minimum acceptable value shall be 10 Mega ohm. j) All test reports shall indicate the details of the instruments used for test with date and time of test. etc. Minimum acceptable value shall be 10 Mega ohms. all measuring and indicating instruments to be checked properly for operation.iii. where provided. Test proper operation of lockout device in the closing circuit. by simulating conditions.2 a) RTCC. k) After commissioning of the equipments. b) The distribution boards shall be checked for rigid mounting. proper rating and size of components.2 Testing a) Before connecting power cables to motor. PAGE 291 .V system. b) After checking the direction of rotation.d) Set each adjustable relay and direct acting trip device in accordance with values given in the approved relay setting record.1 a) b) General Inspection Check for installation according to drawings.4. Minimum megger reading shall be 10 Mega ohms. 3. 3. the insulation resistance of all motor windings shall be measured with 500 Volts megger for 415 Volts systems and with 5 KV megger for H.4. earthing and terminations. earthing connections. interlocking and overload settings. the insulation resistance of each bus shall be measured from phase to phase and from phase to earth with circuit breakers/isolating switch open.3 OTHER DISTRIBUTION BOARDS a) Before energising. e) Each contactor shall be closed and tripped from its control switch and/or push button station to test proper operation. 3.4 MOTORS 3. proper lubrication of bearings. Check equipment for clean and dry conditions. Measurements shall be repeated with circuit breakers/isolating switch closed. Measurements shall be repeated after power cable terminations are completed. all motors shall be run uncoupled for a minimum period of 4 hours before the driven equipment is placed in regular service. 5 L. b) The insulation resistance of the circuits noted below shall be measured as follows:i. fixtures. PAGE 292 . etc.6 WIRING a) Before energising. b) c) Record test data between phase to phase and phase to earth.T. Are connected but before fixing of lamps. ii. measure insulation resistance from phase to earth. Motor control circuits: With push buttons and over current devices connected. Lighting feeders: Measure insulation resistance with circuit breakers or switch-fuse units on panel boards connected but with lighting branch circuit breakers or switches open. 3. measure insulation resistance from load side of circuit breakers or contactors. Lighting branch circuits: Measure insulation resistance after all lamp holders. duration of test and test procedure shall be in accordance with IS : 4288. the insulation resistance of every circuit shall be measured from phase to phase. iii. on all feeder cables including motor feeder cables. CABLE a) A megger test shall be made for continuity and proper end-to-end connection and correct termination after installation.c) Do not energise motors that are coupled to equipment without approval of Engineer-in-charge. 3. The test voltage. receptacles. Motor feeders: with motors disconnected. iv. from phase to neutral and phase to earth. 10 Testing a) The resistance to ground shall be measured at the following locations: i.9 Specifications a) b) Check that earthing system is installed as per drawings. the earth resistance shall preferably not exceed 1 Ohm. ii. e) Test light intensity of each room by light intensity meter at working height and record the same. measure insulation resistance of each length of cable before splicing and/or terminating. 3. after splices and/or terminations are complete. Check that all connections are tight and connections are protected from mechanical injury. 3. At each earthing point provided for lightning protection.9 ALARMS All electrical alarms shall be tested for proper operation by causing alarm to sound under simulated abnormal conditions. d) Measure the insulation resistance of buried cable circuits before cable trenches are backfilled. 3. 3. The resistance of the system/neutral earthing should be maintained preferably at less than 1 Ohm.c) Where splices or terminations are required in circuits rated above 600 Volts.8 EARTHING Earthing shall be carried out as per IS Code of Practice: 3043 and as shown in the relevant drawings. Repeat measurements after backfilling. PAGE 293 . f) All receptacles shall be tested for correct phase sequence and by test lamp for operation of switch and continuity of earthing. Repeat measurements. 3. a test also shall be made with samples drawn from the liquid container before the equipment is filled. test sample of liquid shall be drawn from equipment after filling. At any one point of each system used to provide earthing to electrical equipment enclosures. 3.13 INSULATING LIQUID DIELECTRIC TEST For test of the dielectric strength of insulating liquid or oil in transformer or reactor. PAGE 294 . 3.12 BATTERY CHARGERS Battery charger shall be tested for proper operation and to verify that chargers deliver their maximum rated output. b) Measurements shall be done before connection is made between the earth and the object to be earthed.iii. Tests shall be carried as per IS : 335.11 BATTERIES All substation batteries shall be given a booster charge in accordance with manufacturers’ instructions and adjusted for float operation before being placed in regular service. In some cases. resistance shall not preferably exceed 1 Ohm. General Notes for Power & Earthing PAGE 295 . 1. Cables on trays shall be clamped with embedded with their top at least 40 mm below finished floor level. column.1 KV grade. etc.6 1. Power and control cables shall be 1. beam. etc. PAGE 296 .2 All dimensions are in millimetres. cables shall be laid in stranded RCC pipes (provided by civil contractor) . beams. spacers and saddles at an interval of common saddle. felt.9 Minimum bending radius for cables shall be as under: 1. PVC / XLPE insulated..1 KV grade single core cable 1. shall be installed with G. For cables buried in ground.10. etc.4 Wherever cables cross roads or drains.1 KV PVC/XLPE arm. 1. they shall be 400 mm. 1. Interval.3 All L.5 Cable trench shall be sealed with water-proofing compound at the entry to the building after laying of all cables by electrical contractor.1 GENERAL NOTES FOR POWER AND EARTHING 1. pipe sleeves wherever they cross walls. For cable sizes and details of circuit numbers. cable route markers shall be provided on the surface of the ground along the cable route at every 15 Mtrs.8 Wherever cables are to be embedded directly in the floor. Extruded PVC inner sheathed and extruded FRLS PVC outer sheathed.7 Cables shall be laid in G.11 15 times d 12 times d 15 times d Cables buried in the ground shall have slight slack to allow for settling of the earth. refer respective Electrical single line diagrams indicated in the layout drawing. at every bend and where change of level takes place. unless otherwise mentioned. 1. aluminium / copper stranded conductor.1 1. flat / round wire armoured.I. Cables running along wall.T. 1. Multi core cable 11 KV XLPE cable 1. 1. 1.I. The RCC pipes shall be sealed by electrical contractor with jute. in an approved manner after laying of cables. 1. 1.17 All earthing joints and connections shall be carried out as per enclosed standards with duplicate conductors for systems of 415 V.21 Main earth grid. canopy duly painted with primer and finishing coats.16 Test point shall be provided in lightning down conductor on insulator mounted on column/wall at 1500 mm above finished grade level. 3 phase & above and single conductor for 240V. etc.I.18 Isolators. starters. 1 phase system.15 No earthing strips for system/equipment earthing shall be connected to the earthing strip provided for lightning protection system. including spare sleeves. starters. isolators. indicating circuit description and size of cable at both the ends and also at every bend. Shall be finally checked in the field by electrical contractor to ensure ease of removal and maintenance of motors and other equipment.1. Strip 50 X 10 mm G. 1.S. shall be installed with their bottom side at 1200 mm above finished floor Main Earth Grid Conductor For PCC. 1. Strip PAGE 297 . push button stations.14 The main earthing strip outside the building shall be laid at a minimum depth of 350 mm below finished grade level. as applicable connected to the nearest earth bus. all switchgear panels. equipment. push button stations. Main LT Panel 50 x 10 mm G. distribution boards.12 All cables shall be provided with suitable aluminium tag. etc. 1. push button stations. vessels. motors.19 Location of isolators.20 Push button stations located in out-door areas shall be provided with M. etc.I. level. 1. plug receptacles. 1. conductor and for copper conductor.13 Pipe sleeves provided in fire walls. 1.I. 1. shall be earthed with wire/strip as per following list for G. shall be sealed by electrical contractor with bitumen-based cold-setting compound. For MCC, PDB, LDB For Lightning Protection For Lighting Panels, Power DBs 50 x 6 mm G.I. Strip 25 x 6 mm G.I. Strip 25 x 3 mm G.I. Strip / 4 Sq.mm Cu. FRLS Wire For Push Button Stations For 1-Phase Power Sockets Pump Motors up to 15 HP Pump Motors from 20 HP to 30 HP Pump Motors from 35 HP to 75 HP Pump Motors above 75 HP 2.5 sq.mm Cu. FRLS wires 2.5 sq.mm Cu. FRLS wires 2.5 sq.mm Cu. FRLS wires 25 x 6 mm G.I. Strip 25 x 6 mm G.I. Strip 50 x 6 mm G.I. Strip All the equipments (i.e. three phase equipments) shall have two earthing connections. Al. earth busbar shall be used for connecting copper earthing wires using tinned copper lugs of suitable sizes. Busbar shall be installed on wall structures near the equipments / motors / LCS. PAGE 298 General notes for Lighting PAGE 299 1 GENERAL NOTES FOR LIGHTING 1.1 1.2 All dimensions are in millimetres, unless noted otherwise. Wiring for non-flameproof type lighting fixtures and 6/16 A, 1 phase, receptacles shall be carried out with 250 V grade, stranded, 2.5 / 4 sq.mm copper FRLS PVC insulated flexible wires in heavy gauge PVC conduit. For flameproof type light fixtures and power sockets and for non – flameproof type fixtures wherever asked for, 3C used. X 2.5/4 sq.mm armoured copper FRLS PVC cable of 1.1 KV grade shall be 1.3 Lighting fixtures, switch boxes and receptacles shall be earthed by 12 SWG G.I / 14 SWG Cu. wires running all along the conduit / cable, connected to the nearest earth bus. 1.4 Switches and receptacles of same phase located closed to each other shall be housed in a common 14 SWG MS enclosure. 1.5 A maximum of following nos. and size of the wires can be taken through conduits of the sizes indicated. (Conduit of less than 19 mm dia shall not be used). CONDUIT SIZE IN MM 1 SQ.MM 19 25 32 40 1.6 7 13 20 --- MAXIMUM NOS. OF WIRES IN A CONDUIT 1.5 SQ.MM 6 10 14 --2.5 SQ.MM 5 10 14 --4 SQ.MM 3 6 10 14 6 SQ.MM 2 5 7 9 Conduits and cables shall be supported at every 400 mm interval respectively with GI. Spacers and clamps. 1.7 Threaded conduit terminating on flameproof equipment shall be made of minimum 25 mm length of engaged threads. 1.8 Conduits shall be sealed properly at entry to flame proof switchgear and also wherever passing from non hazardous area to hazardous area. PAGE 300 Lighting Panels shall be mounted at 1500mm height from FFL.18 All emergency lighting units shall be mounted at 2500 mm height from F. etc. shall be mounted in such a manner that their bottom side shall remain at a height of 1200 mm from the finished floor level.1.F. 1.10 1. G. junction boxes. Single phase lighting distribution board / lighting panel shall be earthed with one earth wire. However. tray buckets. cleats. as per std. 1. drawing. 13. 1.15 Conduits / cables for lighting fixtures located outside the building shall come out from inside near the location of the lighting fixtures. 1.12 1. 1. switches. 1. supports.17 Three phase lighting distribution board/ lighting panels shall be earthed with two independent earth strips / wires connected to the nearest earth bus. required to mount the lighting fixtures / lighting distribution boards / receptacles / switch boxes / lighting panels and laying of cables / conduits shall be provided by the Electrical contractor. etc. Pipe sleeves.20 All telephone and computer points shall be at 750 mm height from F. 1. 1.L.19 All runners. 1.9 Switches.L PAGE 301 .14 Lighting fixtures.13 Conduits and conduit fittings shall be of heavy duty PVC type.I. switch boxes. Casings / battens shall be fixed by means of screws and PVC wall plugs at intervals of 400 mm. – Subject to Approval of Architect. receptacles for the same shall be mounted as per note. etc.11 Looping of wires / cables should be made from fixture to fixture.9. located in hazardous areas shall be of flameproof construction as per IS : 2148. receptacles.F. receptacles. Conduits / cable runs shown on drawings are for guidance. Exact locations shall be determined at site by the Electrical contractor.16 Wiring shall be colour coded and wires of the same phase only shall run in the same conduit. FIRE ALARM SYSTEM PAGE 302 . Based on the site condition the user should have the discretion to either PAGE 303 .FIRE ALARM SYSTEM 1. The panel should check each detector once every 24 hrs. fault isolation and sensor loop operation. installation. 2. software and memory complying with BS5839 Part 4 (1995) and should bear CE mark. IFAS shall operate on 230 V AC supply & Smoke detectors shall be powered using the IFAS based smoke detection circuits.000 history events • RS-485 local rail communications • Multiplexed audio channels • Network communication RS-485 • RS-232 communication card • Form ‘C’ contacts for: Alarm.0 Scope of Supply : The contractor shall supply & install microprocessor based. supply. 3. FACP shall have its own microprocessor. The addressable and intelligent system shall be such that smoke sensors. Addressable Manual call point and sounders. The distributed Intelligent Fire Alarm Control Panel (FACP) shall function as fully stand-alone panel. manual call points. testing & commissioning of Intelligent Fire Alarm System for the whole premise. can be identified with point address. addressable and intelligent (analog).0 Intelligent Fire Alarm System : Features: • analog addressable • each loop consist of 125 detector & 125 devices • Automatic electronic device addressing • 16 bit processor • Up to 1. Supervisory and Trouble • Simultaneous display of eight events • 24 lines by 40 character graphic LCD display – 960 Characters Total • "Device location supervision – Unexpected additional device addresses – Missing device addresses – Switched device locations – Programmed device parameters" • Automatic day/night sensitivity • Setting smoke sensor sensitivity remotely . Devices shall receive power and communication from the same pair of conductors. It shall be possible to mix different fire devices within the same loop to optimize field wiring. intelligent (analog) heat and smoke sensors. etc. IFAS shall provide for resetting smoke detectors. fire detection and alarm system complete with addressable. for contamination for this purpose. thermal sensors.0 General: This specification covers the design. time & description for Analog Sensors to indicate alarms and trouble situations. It shall be possible to command test. Non-Condensing Operating Temp: 32ºF to 120ºF (0ºC to 49ºC). The panel should have a 80 character backlit LCD display which shall display date.0. More Sensitive: 2. Humidity: 0 to 93% RH.5%/ft. This display is to be utilized by the panel to display various information as per design. The memory data for panel configuration and operation shall reside in non-volatile memory (EEPROM).0%/ft.0 SMOKE DETECTORS : Features: • Integral microprocessor • Non-volatile memory • Automatic mapping device • Electronic addressing • Environmental compensation • Intelligent detector • Wide 0. relay. and audible mounting bases • Designed and manufactured to ISO 9001 standards Technical Specification: • Sensing Element: Photoelectric . Each IFAS shall have a battery back up.39 m/s). IFAS shall provide password protection and programmable outputs.000 ft/min (0 to 25. sensitivity range • Twenty pre-alarm sensitivity values. The Panel should provide alarm indication of INDIVIDUAL sensors. IFAS shall provide general purpose inputs for monitoring such functions low battery or AC power failure. Monitor Modules shall be provided to monitor and address Manual Pull Stations and other contact type input devices. LCD display at the IFAS shall be provided to indicate point in alarm or trouble.0%/ft. IFAS switches shall allow authorized personnel to accomplish the following independent of the control console : Fault isolation of fire zones shall be provided to enable part of a fault-tolerant loop to continue operating when a short occurs on the loop.77% obscuration/foot • "User Selected Alarm Sensitivity Settings: Most Sensitive: 1. set in 5% increments • Identification of dirty or defective detectors • Automatic day/night sensitivity adjustment • Twin RED/GREEN status LEDs • Standard. fault isolator. PAGE 304 . Storage Temp: -4ºF to 140ºF (-20ºCto 60ºC) " • Sensitivity Range: ULI/ULC .67% to 3. Removal of the board shall not cause loss of memory.. reset and alarm silence from the FACP. Systems that provide alarm indication on a zone basis alone shall not be acceptable.77%/ft.. 4. Fault-isolation module shall have a LED that latches to indicate a short on the loop. Panels should provide for detector premaintenance alarm indication for dust accumulation.Light Scattering Principle • "Storage & Operating Environment: Air Velocity Range: 0 to 5.67% to 3. which can operate relays or logic level devices.clean the detector immediately or manually change the alarm threshold level on the panel (by programming) after ascertaining that it is a pre-maintenance alarm and not a developing alarm condition at the site..Normal: 2. " Construction & Finish: High Impact Engineering Polymer . ULC. and 135oF (57oC) fixed temperature type • Intelligent detector c/w integral microprocessor • Non-volatile memory • Automatic device mapping • Electronic addressing • Identification of defective detectors • Twin RED/GREEN status LEDs • Standard. MEA.Flashes when polled.Flashes when in alarm Both LEDs .2 to 19.Flashes when in alarm. Least Sensitive: 3. Non-Condensing" • Operating Voltage: 15.Flashes when polled On-board Red LED ..Glow steady when in alarm (stand-alone) Compatible Remote Red LED (model SIGA-LED) Flashes when in alarm" Address Requirements: Uses one Device Address Agency Listings: UL.0 Less Sensitive: 3.0%/ft. and audible mounting bases • Designed and manufactured to ISO 9001 standards Technical Specification: • Heat Sensing Element • Alarm Point • UL Listed Detector Spacing: 70 feet (21.0 MULTI DETECTOR: Features: PAGE 305 . relay.3 meters) center to center spacing • "Operating and Storage Environment: Operating Temp: 32ºF to 100ºF (0ºC to 38ºC) Storage Temp: -4ºF to 140ºF (-20ºC to 60ºC) Humidity: 0 to 93% RH. allowing up to 20 pre-alarm settings Operating Voltage: 15.Glow steady when in alarm (stand-alone) Compatible Remote Red LED Flashes when in alarm" • Address Requirements: Uses one device address • Agency Listings: UL. Alarm: 45μA @ 19 V Emergency Stand-alone Alarm Mode: 18mA Pulse Current: 100 μA (100 msec).White • "LED Operation: On-board Green LED .95 Vdc (19 Vdc nominal) "Operating Current: Quiescent: 45μA @ 19 V.White "LED Operation: On-board Green LED . CSFM 6. ULC. fault isolator.• • • • • • • • 5.95 Vdc (19 Vdc nominal) • "Operating Current: Quiescent: 45μA @ 19 V Alarm: 45μA @ 19V Emergency Stand-alone Alarm Mode: 18mA Pulse Current: 100 μA (100 msec)" • Construction & Finish: High Impact Engineering Polymer . MEA. CSFM UL Listed Spacing: 30 ft HEAT DETECTOR: Features: • 70 foot (21.3 meter) spacing • 15oF (9oC)/min rate-of-rise/135oF (57oC) ft. Both LEDs . During Communication: 9 mA max." Pre-alarm Sensitivity: 5% increments. On-board Red LED .2 to 19.5%/ft. ULC.0 FAULT ISOLATOR DEVICE : Features: • Automatic device mapping • Electronic addressing • Ground fault detection by address • Self-restoring • 2-gang mounting • Designed to ISO 9001 standards Technical Specification: • Description: Isolator Module .0%/ft. CSFM. Non-Condensing" • Sensitivity Range: ULI/ULC . Least Sensitive: 3.• • • • • • • • • • • • • Integrates photoelectric smoke and 135o F (57o C) fixed-temperature heat sensing technologies Non-volatile memory Automatic device mapping Electronic addressing Environmental compensation Integral microprocessor . MEA • UL Listed Spacing: 30 ft 7.2 to 19. allowing up to 20 pre-alarm settings • Operating Voltage: 15.0%/ft.Flashes when polled On-board Red LED .95 Vdc (19 Vdc nominal) • "Operating Current: Quiescent: 45μA @ 19 V Alarm: 45μA @ 19 V Emergency Stand-alone Alarm Mode: 18mA Pulse Current: 100 μA (100 msec) During Communication: 9 mA maximum" • Construction & Finish: High Impact Engineering Polymer .Glow steady when in alarm (stand-alone) Compatible Remote Red LED Flashes when in alarm" • Address Requirements: Uses one Device Address • Agency Listings: UL. and audible mounting bases Designed and manufactured to ISO 9001 standards Technical Specification: • Smoke Sensing Element: Photoelectric .0%/ft.Light Scattering Principle • Heat Sensing Element: Fixed Temperature Alarms at 135ºF (57ºC) Ambient • "Operating and Storage Environment: Operating Temp: 32ºF to 100ºF (0ºC to 38ºC) Storage Temp: -4ºF to 140ºF (-20ºC to 60ºC) Humidity: 0 to 93% RH.5%/ft. More Sensitive: 2. fault isolator.White • "LED Operation: On-board Green LED . Less Sensitive: 3.Normal: 2.77% • "User Selected Alarm Sensitivity Settings: Most Sensitive: 1.factory set hardware type code • Address Requirements: Uses One Detector Address PAGE 306 . sensitivity range Twenty pre-alarm sensitivity values.5%/ft.77%/ft.67% to 3.0.intelligent detector Wide 0. set in 5% increments¹ Identification of dirty or defective detectors Automatic day/night sensitivity adjustment Twin RED/GREEN status LEDs Standard.Flashes when in alarm Both LEDs .67% to 3. relay." • Pre-alarm Sensitivity: 5% increments. MEA The fault isolator device shall detect and isolate a short-circuited segment of a fault tolerant loop.95 Vdc (19 Vdc nominal) Construction & Finish: High Impact Engineering Polymer 2-gang front plate . MEA.2 to 19. The devices shall automatically determine a return to normal condition of the loop and restore the isolated segment. ULC. ULC (note 1). Activated = 45μA Operating Voltage: 15.Flashes when polled On-board Red LED .Flashes when polled (normal) Compatibility: Use with: Signature Loop Controller Agency Listings: UL.95 Vdc (19 Vdc nominal) "Storage and Operating Environment Operating Temperature: 32ºF to 120ºF (0ºC to 49ºC) Storage Temperature: -4ºF to 140ºF (-20ºC to 60ºC) Humidity: 0 to 93% RH" "LED Operation On-board Green LED .Glow steady when in alarm " Agency Listings UL.Flashes when in alarm Both LEDs . PAGE 307 .Red Epoxy w/Aluminum markings Operating Voltage 15. CSFM. Humidity: 0 to 93% RH LED Operation: On-board Green LED .• • • • • • • • • Circuit Resistance: Six ohms maximum between isolators Operating Current: Standby = 45μA. there shall be a LED indicator on the monitor module for visual indication to locate the call point easily. In the case of fire when the glass cover is broken the push button shall be released by the spring action and shall actuate an alarm at the control panel through its switching contacts. Devices shall be placed every 20 detectors / modules / field devices to limit the number lost on the event of short-circuit. 8. CSFM • • Under normal conditions push button shall be in the depressed condition. In additions to this.0 MANUAL CALL POINT : Features: • Break glass operation • Intelligent device c/w integral microprocessor • Non-volatile memory • Automatic device mapping • Electronic addressing • Stand-alone operation • Diagnostic LEDs • Designed for high ambient temperature operation • Designed to ISO 9001 standards Technical Specification: • • • • • Addressing Requirements :Uses 1 Module Address "Operating Current :Standby = 250μA Activated = 400μA" Construction & Finish Diecast Zinc .White Finish Storage Environment: Temperature: -4°F to 140°F (-20°C to 60°C) Operating Environment: Temperature: 32°F to 120°F (0°C to 49°C).2 to 19. Manual stations shall be interfacible to a monitor module that is addressable. 93% relative humidity " "Agency listings/approvals : UL 1971. 30. ULC S526. or 110 PAGE 308 . or 110 cd strobe output • high (default) or low dB horn output • temporal (default) or steady horn output • public mode flash rate (default) or private mode temporal flash • Single microprocessor controls both horn and strobe • Meets tough synchronizing standards for strobes 10. ULC S525. 9.0 • • • • • • • Technical Specification: "Housing : Red or white textured UV stabilized. Contacts shall remain closed until station is manually reset. 30 cd. 75. 75 cd.The manual stations shall be the non-coded resettable key insert type general alarm devices. The manual station shall have normally open fire alarm and annunciator contacts and these contacts shall close on activation. painted red and suitable for surface for surface or flush mounting. UL 464. CSFM.33 Vdc or unfiltered 16-33 Vdc FWR Strobe output rating : selectable 15 cd.0 SOUNDER Features: • 15." Operating voltage : 16 . " Lens : Optical grade polycarbonate (clear) "Operating environment : Indoor only: 32-120°F (0-49°C) ambient temperature. Exceeds 94V-0 UL flammability rating. color impregnated engineered plastic. UL 1638. CCTV SYSTEM PAGE 309 . Auto (28dB). 12 VDC recommended • Power Consumption: 2W • Operating Temperature: +10 to 50 deg C. ATW • CE Certified Technical Specification: • Signal System: PAL • Picture Elements: 470. The complete unit shall be housed in a Weather proof enclosure with integrated dome and base unit. It shall be possible to adjust the camera head inside the dome in both the planes so that it can be wall or ceiling mounted. Off • ATW: Switchable.3x Optical Zoom (2. The CCTV System shall comprise of Dome Cameras. Off • Lens: 2.0 Scope of Supply : The contractor shall supply and install CCTV system with all necessary accessories. Monitor. 3.C. 1/50 – 1/100. Crisp Images • White Balance • 2. On. • Iris Control: Auto or internal • Operating Voltage: 9VDC to 18VDC. Off • AES: Switchable.+18VDC • AGC .5 mm to 12 mm as per site requirement. supply installation. The camera shall operate on Dual Switching Power 24 V AC or 12 volts D.0 General: This specification covers the design. 50dB S/N Ratio.3 to 12mm varifocal/ fixed lens. Switcher etc and other associated accessories. Digital Multiplex Video Recorder. 75 ohms • AGC: Switchable. AES .000K.28 lux • Video Signal to Noise Ratio: 50dB (AGC off) • Video Output: 1V Composite Video. ATW . On 2300K to 11. Varifocal/fixed lens Dome Cameras. testing & commissioning of the CCTV system for the whole premise. both preferably made from injection moulded plastic.000.3 to 12mm Lens) • Multi function switches • Wide Power Supply +9 . 2. On. Features: • 540TVL.CLOSED CIRCUIT TELEVISION SYSTEM 1.000 pixels • Imager: 1/3” Sony CCD Sensor • Scanning System: 2:1 interlace • Horizontal Resolution: 540 TV lines • Minimum Illumination: 0. PAGE 310 .0 Outdoor Weather Proof Camera The Outdoor Weather Proof Camera shall have built in 2. 0 Fixed Dome Camara The Fixed Dome Camara shall have builtin 3. ON.BLC . 75OHMS AGC: SWITCHABLE.+18VDC AGC. 50DB S/N RATIO.6mm focal lens.6MM GLASS IRIS CONTROL: INTERNAL OPERATING VOLTAGE: 9VDC TO 18VDC.28 LUX VIDEO SIGNAL TO NOISE RATIO: 50DB (AGC OFF) VIDEO OUTPUT: 1V COMPOSITE VIDEO. The complete unit shall be housed in a integrated dome and base unit. CRISP IMAGES WHITE BALANCE MULTI FUNCTION SWITCHES WIDE POWER SUPPLY +9 . both preferably made from injection moulded plastic.C. ON 2300K TO 11. ON. WEIGHT: 200 TO 450G DOME MATERIAL: 2” / 3” PLASTIC PAGE 311 . The camera shall operate on Dual Switching Power 24 V AC or 12 volts D. OFF AES: SWITCHABLE. 12 VDC RECOMMENDED POWER CONSUMPTION: 2.000K.4.000. 1/50 – 1/100. Features: • • • • • • 540TVL. OFF LENS: 3. It shall be possible to adjust the camera head inside the dome in both the planes so that it can be wall or ceiling mounted.2W OPERATING TEMPERATURE: +10 TO 50 DEG C.AES CE Certified Technical Specification: • • • • • • • • • • • • • • • • • • SIGNAL SYSTEM: PAL PICTURE ELEMENTS: / 470000 PIXELS IMAGER: 1/3” CCD SENSOR SCANNING SYSTEM: 2:1 INTERLACE HORIZONTAL RESOLUTION: 540 TV LINES MINIMUM ILLUMINATION: 0. OFF ATW: SWITCHABLE. AUTO (28DB). 0 Outdoor Speed Dome Camera The Fixed Dome Camera shall have built in 26X: f4-104mm focal lens. It shall be possible to adjust the camera head inside the dome in both the planes so that it can be wall or ceiling mounted. both preferably made from injection moulded plastic.0±0. Features: • 480TVL.5°~300°/s • Preset speed: approx 300°/s • Tour: 4 tracks • Private shelter: N/A • Motion detect ing: N/A • Power requirement: AC24V 50/60Hz • Power consumption: approx 42W(heater 30W) • "Operating temperature range: -30 degree C to +50 degree C -20 degree C to +40 degree C(recommended)" 6.0 DIGITAL VIDEO RECORDER 16 channel standalone DVR with real time display & real time recording. The camera shall operate on Dual Switching Power 24 V AC or 12 volts D. CE certified Features: • Embedded OS PAGE 312 . 625 lines • Horizontal resolution: 480TVL • Mini illuminance: 0. Crisp Images • Auto White Balance • 26x Optical Zoom • Multi Protocols • Wide Power Supply • 128 presets Technical Specification: • Signal system: PAL standard • Picture device: 1/4-inch color IT CCD with internal lens • Number of pixels: PAL:752(H)×582(V) • Scanning system: 2:1 interlaced. up to camera unit • BLC: Off /Auto up to camera unit • Preposition point: 128 • Pan/tilt speed: pan:0. 50dB S/N Ratio. tilt:0.5°~110°/s. 75 ohms • Zoom ratio: optical zoom: 26x • Focal length: 26x: f4~104mm • White balance: Auto • AGC: Auto • Lock Method: Line lock/internal lock.2V(p-p).28Lux • Video S/N: 50dB (AGC: OFF) • Video output: composite video signal: 1. The complete unit shall be housed in weatherproof housing with rotating mechanism & integrated dome and base unit. 1 TB HDD.C.5. 400 fps. 50/60 Hz 75 Watts -10 to 50 degree C -20 to 70 degree C (30-90% RH) plus or minus 500 Hz (or) plus or UL. 0. TUV PAGE 313 .000bps • Horizontal resolution: Realtime display:704X576.LAN • Hard Disk Interface: 4-channel.1Vp-p. 704X288 • Video Output: Video1 Output.7 mm Stripe pitch More than 600 TVL 96 . No balance. It shall be solid state and modular in design.256 VAC. The video monitors installed shall be atleast 14” size or more and shall comply with the specification TECHNICAL SPECIFICATIONS FOR 19” COLOUR MONITOR Video CRT Resolution Power Input Consumption Operating temperature Storage temperature Horizontal / vertical frequency minus 4 Hz Certifications : : : : : : : : : PAL/ NTSC color composite 1. BNC. It shall provide a bright. match video. Shall be provided on the front panel for readily adjusting the levels of the video signal.264 Compression Video – Audio Sync Store Motion Detection Networkable CIF / Half D1 Recording Technical Specification: • Video input quantity: 16 • Video input: 1Vp-p 75 Ohms. Single channel. 1024X768 • Audio Output: 1 channel. FDA. PAL or NTSC Standard. contrast etc.0 COLOUR MONITOR The monitor shall be suitable with the standards of the selected cameras. 75Ohms. BNC • Audio input: 1V. dBV.000bps to 1. Recording:352X288. No balance.0X96. CE. UPD.0X436. The rear panel shall be provided with input and output BNC connectors for coupling the video output to other Monitors.722 • Code Stream: 32. CSA. VGA: 1 channel. clear and well-defined picture display on the screen. All controls for brightness.WAN.0 v p-p 19” diagonal. 0dBV. RCA • Minimum Alarm Input Quantity: 9 • Minimum Alarm Output Quantity: 4 • Encryption Technique: data encryption.• • • • • H.8/16-channel:4IDEs • Backup Interface: Internal IDE.264 compress arithmetic upgraded by TEO MDCV core • Audio Compressing Arithmetic: G. CUL. RCA • Video Compressing Arithmetic: H.4SATAs. aV. SATA port support hot plugging • Update Interface: 10/100M Ethernet • Power Supply: ~220VAC +/-15% 60Hz • Power Consumption (Not included HD): Approx 30 W • Operating Temperature Range: -10 degree C to +50 degree C • Dimension(WXHXD)mm: (440.0) 7.152. FCC. multi-user management • Control interface: RS-485 • Net Interface: 10/100M Ethernet support multi-broadcasts. List of Approved Vendors PAGE 314 . LIST OF APPROVED VENDORS Sr. 2. MCB / ELCB / ELMCB & MCB DB 8. 1. No. 5. Weatherproof type Cable Glands Comet / Electromac / HMI / LAPP 9 Outdoor Flameproof / Weatherproof Junction Box Dynamic control / EX-Protecta/ Hensel 11 Cable Lugs Dowells / 3-D PAGE 315 . 4. Flexible Cable and FRLS Copper wires Polycab / Finolex / Havells / RR Kabel / L&T / KEI /Anchor 8. Socket and Plug / Modular Accessories MK / Crabtree / LEGRAND / Clipsal / Northwest / ABB / Salzer Hager / LEGRAND / Schneider / Siemens / Havells / Control & Switchgear /Indo Asian / ABB 9. Ltd. Item HT Panel (VCB) Transformer Make ABB / Schneider / Crompton / Siemens Voltamp / Crompton / Areva / T&R / Kirloskar Electric 3. DG Set LT Panel – MV Switchgear Panels / Distribution Boards Supearnova / sudhir / Cumins / greaves ELECMECH / Swati Switchgears / Active Engineers / Industrial Controls / Patel Brothers / SUN Automat Controls Pvt. Modular type Switch. Lighting Fixtures Philips / Wipro / Crompton / Bajaj / GE / Schreder / Pierlite 7. LV Cables CCI / Gloster / Torrent / Polycab / Finolex / Havells / KEI 6. PAGE 316 .12 PVC/HDPE Conduits and accessories Cable Lugs Precision Plastic / Nihir Polymers / Clipsal Dowells / 3-D 13 14 PVC/HDPE Conduits and accessories Ceiling and Exhaust Fans Precision Plastic / Nihir Polymers / Clipsal Crompton / Usha / Khaitan / Orient / Bajaj / Havells 15 16 17 18 T V Cable – coaxial Telephone Cable Cat-5 Cable Telephone tag block Finolex/ Airtech/Comscope Finolex/ Delton/ Havells Polycab/ Finolex/ PR/Systimax Krone 19 Fire Alarm System Ge / Notifier / Seimens / Honewell 20 CCTV System Honeywell / Pelco / Bosch / L&T / BPL Final choice of the make from the above list shall be decided by the Owner / Consultant. Make of any other equipment / components not mentioned above shall have to be approved by Owner / Consultant. DRAWINGS PAGE 317 .