I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCTPage 7 of 25 3.3 Major Specification Reinforced concrete (No.C30)framework structure and enclosure wallboard, counter flow induced draft cooling tower. The FRP guide flow plate to be arranged under loop beam in tower for improve the flow condition inside of tower. The stairs, walkway, handrails, lightning rods, etc. shall be arranged outside of cooling tower for maintenance. Also the location of the above parts should be easily for maintenance of fills, fans, motors,etc. 3.3.1 Fans The fan blades are highly efficient wing typed and formed by the high strength expoxy glass steel module.The angel of blades can be adjust.Each blades can be interchanged. Polyurethaned marginal plate to protect against corrosion will be set at the fan blades. The diameter of fan blade isφ mm（to be filled by bidder）. To keep the fans of the cooling towers operated stable for a long time ,the transimission shaft adopt the imported carboform shaft and adopt the imported oil seal. The fans adjuster adopt the strengthen design. Oil temperature, oil level and vibration supervisory equipments and DCS system whose message was sent to the central control room shall be installed on each fans to real-time supervise the oil temperature and oil level in deducer casing. The performance of fans (wind flowing and wind pressure)shall meet the requirements of the wind flowing and wind pressure in cooling towers. Motors and fans shall be combined with speed reducer with smoothly operation,stable performance,low noise,free artificial maintance .It is totally enclosed. The life span of speed reducer bearing shall be no less than 100000 hours for continued usage.The manufactory of speed reducer is （filled by the bidder）and the life span for the complete speed reducer shall no less than 30 years. The manufactory of fans is （filled by the bidder）and the life span for the fans shall no less than 30 years. 3.3.2 Motors Motors matching fans and its auxiliaries shall be designed and manufactured as per interrelated standards and specifications. I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 8 of 25 Each motors shall be equipped with air space heater. The motor type is Y type horizontal asynchronous motors and installed outside, the waterproof casing to be arranged on the top of motors. Insulation level : F class. Protection level: IP55. Working electrical condition: 415V/50Hz/3Ph. PT-100 type temperature measurement parts to be set for the front & rear bearing and 3 phase coils of motor for ensure safety running. Steel stracture base plate shall be used for motor mounting along with necessary antisepsis measures. 3.3.3 Water distribution devices Water distribution devices shall keep the hardness and strength with long life span.the tubes adopt PVC-U pipes,evenly distribution shall be considered during the design period.the connection between pipes shall be safe and reliable and all the hanging devices shall be made of stainless steel.The nozzles made of ABS materials could be easily adjust to the water loading and can satify the requirements of long-term safety operation. 3.3.4 Water decanier The Water decanier adopt modification PVC materials and the index of fireproof oxygen higher than 35. The Water decanier is formed by machine with the thickness no lower than 0.8mm. The rate of the Water decanier shall be calucated as per the flowing ofrecirculated water and the drift losing rate is no higher than 0.001％. The water decanier shall has the feature of highly rate of collecton,little air flow resistance,high strengthen,nondeformable,easy installation and maintance. The supporter adopt the nonmetal materials. 3.3.5 Air duct The air duct adopts glass enforced fiber materials and recovery of kinetic energy air duct with fire resistance property and oxygen index no lower than 28, value of recovery of kinetic energy no lower than 30%. The fasteners for air duct are made of steelness materials. I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 9 of 25 The externally face shall having the feature of not cracked,constant the function of the color. the surface adopts advanced imported gel coats and having anti ultraviolet ray.the bidder inviter shall provide the colour of externally face ,the bidder shall comply with it. The air duct adopts reinforced design and basic design wind pressure is 0.5kPa. 3.3.6 Filling Filling materials adopt FRP or RPVC film fillings without reworked materials. Filling materials are fire retardance with the index of fire retardanc oxygen no higher than 40. The thickness of the substrate is no lower than 0.40±0.05mm. Filling materials shall stickied into lumps with the sticking rate no lower than 95%. The intensity of flat crushing ≥ 300kg/m 2 Filling frame adopts FRP or nonmetal materials. Filling mareials shall be easier for maintance and exchange,nailing shall not be adopted as the way of fastening. 3.3.7 Passage for maintance in cooling towers. The bidder shall design and offer the maintance platform for fans and maintance passage for components in towers. Maintance platform and passage shall adopt stainless and nonmetal materials. Qulckly opened access door shall be available in towers with high-quality tightness and easier to dispatch. All the materials components shall adopt stainless steel materials. 3.3.8 Lightning system The bidder shall be responsible for the design and supply the stainless lightning rings set on the top of each air duct. Lightning system on the top of tower shall be lead to downtowers to connect with the earthing system of the power plant. 3.3.9 Others The antisepsis measures to be condsidered by bidder for all steel parts in side of cooling tower, the life span of these parts shall be not less than 30 years. The antisepsis measures should be taken for the surface of water drench frame column I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 10 of 25 and beams of tower. The average moving load at the top of tower is 4kN/m 2 . 3.4 Deleted. 3.5 Requirement of C&I 3.5.1 Bider must be sure that the Equipments supplied could be operating safely and practically under any operation conditions and bider submite the documents about measurement point list and control requirements..All the control instruments shall be supplied along with main equipments .Bider supply alarm value ,trip value and relative control information. 3.5.2 Instruments supplied with main equipments shall be accordance with the insrtruments selection .All the instruments selection must be approved by the owner. 3.5.3 The pressure and DP transmitters must be accordance with HART protocol and transmitters will be 2 –wired and smart.The accuracy will be 0.075 and external load will be 500 ohm.Protection class shall be IP65. All cable interface must not be smaller than 13mm.The interface will be sealed. 3.5.4 The logic switch accuracy will be 0.5 or more better ant protection class will be IP65, All cable interface must not be smaller than 13mm.The interface will be sealed. Switch contacts will be 2×SPDT. 3.5.5 The local indicator accuracy will be 1.5.The external diameter shall not be smaller than 150mm.Generally,the guage point will be 2/3~3/4 of full scale when normally operationg.Temperature guage shall be universal type.Vibration-against guage will be adopted for vibration area. 3.5.6 All analog signal will be 4~20mA DC,temperature signals that into DCS will be from 3-wired RTD.The electric contacts will be DPDT and the contacts capacity will be shall be as follows: Type 230V AC 115V DC 230V DC I – closed contacts（sensibility loop）： 5A 10A 5A II- continuous electrification： 5A 5A 5A III-broken contacts： 2.5A 2A 0.5A I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 11 of 25 3.5.7 Local control panel will be IP65 for outdoor and IP56 for indoor and the panel must be meet the site requirements.The color shall be approved by the owner.The instruments output signal cable will be linked to JB by contractor. Contractor should supply the JB drawing to design institute.The cable from local instruments to JB shall be supplied by contractor.JB will be bottom-into and the input will be sealed by PVC plug.The terminal will be Phoenix and clip type mounted on track,Terminal spares shll be 20%,and the space between two track will be 100mm. 3.5.8 All motor stator wind temperature shall be measured by 3-wired PT RTD and than link into JB by contractor.l (1) Motor stator wind temperature measurement will be six RTD,2 RTD each phase. (2) Motor thrust bearing temperature will be measured by RTD. 3.5.9 Temperature measurements shall be meet following requirements: (1) Mounted RTD will be clinged to bearing and easy to mount and replace outside the equipments. (2) Isolation layers will be very well After mount the temperature gauge.Be sure that bearing will be isolated from earth. 3.5.10 Oil temperature measurement alarm instruments shall be supplied for gear down box. 3.5.11 Vibrations and temperature measurement instrument shall be integrated with fas or motor.Vibration measurement shall be done for X and Y ,and instrument output signals shall be 4-20mADC and it will be connected into DCS. 4 Electrical requirement Electrical equipments / systems shall comply the following International Standards Standards Descriptions IEC-60034 (Part-1 to Part-19) Rotating electrical machines IEC-60044-1 Current transformers IEC-60044-2 Voltage transformer IEC-60044-4 Instrument transformers: Measurement of Partial Discharges IEC-60051(Part-1 to Part-9) Recommendations for Direct Acting indicating analogue electrical measuring instruments and their accessories. IEC-60076 (Part-1 to Part -5) Power transformers IEC-60076-10 Determination of transformer and Reactor Sound Levels I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 12 of 25 Standards Descriptions IEC-61095 Electromechanical Contactor for household and similar purposes IEC-60099-425 Metal oxide surge arrestors without gaps IEC-60129 Alternating Current Disconnectors (Isolators) and Earthing switches IEC-1129 Alternating Current Earthing Switches induced Current switching IEC-60137 Insulated bushings for alternating voltages above 1000V IEC-60168 Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1000V. IEC-60183 Guide to the selection of high voltage cables IEC-60189 (Part-1 to Part- 7) Low frequency cables and wires with PVC insulation and PVC sheath IEC-60214 On-Load-Tap-Changers IEC-60233 Tests on hollow insulators for use in electrical equipment IEC-60255 (Part-1 to Part-23) Electrical relays IEC-60265 (Part-1 to Part 2) High voltage switches IEC-60273 Characteristics of indoor and outdoor post insulators for systems with nominal voltages greater than 1000V IEC-60289 Reactors IEC-60297 (Part-1 to Part- 4) Dimensions of mechanical structures of the 482.6mm(19 inches) series IEC-60376 Specification and Acceptance of New Sulphur Hexafloride IEC-60437 Radio interference Test on high voltage insulators IEC-60507 Artificial pollution tests on high voltage insulator to be used on AC systems IEC-60694 Common specification for high voltage switchgear & control gear standards IEC-60815 Guide for selection of insulators in respect of polluted conditions IEC-60865 (Part-1& Part-2) Short Circuit Current – Calculation of effects IEC-60354 Loading Guide for oil –immersed power transformers IEC-62271-100 High voltage alternating current circuit breakers IEC-62271-102 Alternating current disconnectors and earth switches IEC-60427 Synthetic Testing of High Voltage alternating current circuit breakers IEC-61264 Pressurized Hollow Column Insulators IEC-60358 Coupling capacitors and capacitor dividers IEC-60481 Coupling Devices for power line carrier systems IEC-60529 Degree of protection provided by enclosures IEC-60947-4-1 Low voltage switchgear and control gear IEC-60439 (Part-1&2) Low voltage switchgear and control gear assemblies IEC-60353 Line traps for A.C. power systems IEC-60495 Single sideboard power line carrier terminals IEC-60683 Planning of (single side-board)power line carrier systems IEC-60359 Expression of the performance of electrical and electronic I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 13 of 25 Standards Descriptions measuring equipment IEC-60387 Symbols for alternating-current electricity meters IEC-60447 Man Machine Interface (MMI)-actuating principles IEC-60521 Class 0.5,1,and 2 alternating current watt hour meters IEC-60547 Modular plug-in unit and standard 19-inch rack mounting unit based on NIM standard(for electronic nuclear instruments) IEC-60305 Insulators for overhead lines with nominal voltage above 1000V-ceramic or glass insulator units for ac. Systems characteristics of string insulator units of the cap and pin type IEC-60372 (1984) Locking devices for ball and socket couplings of string insulator units: dimensions and tests IEC-60383 (Part-1&2) Insulators for overhead lines with a nominal voltage above 1000V IEC-60433 Characteristics of string insulator units of the long rod type IEC-60471 Dimension of clevis and tongue couplings of string insulator units IEC-60227(part 1 to 7) Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 IEC-60228 Conductor of insulated cables IEC-60230 Impulse tests on cables and their accessories IEC-60287 (Part-1 to 3) Calculation of continuous current rating of cables (100% load factor) IEC-60304 Standard colours for insulation for low- frequency cables and wires IEC-60331 Fire resisting characteristic of electric cables IEC-60332 (Part-1 to 3) Tests on electric cables under fire conditions IEC-60502 Extruded solid dielectric insulated power cables for rated voltages from 1kV up to 30kV IEC-754 (Part-1 to 2) Tests on gases evolved during combustion of electric cables IEC-60071 Insulation Co-ordination IEC-60060 High voltage test techniques IEC-60270 Partial discharge measurement IEC-61233 Guide for inductive load switching IEC-60298 AC metal enclosed switchgear and control gear up to 52kV IEC-105 Bus bars (Aluminium) IEC-61641 Enclosed low voltage switchgear and control gear assemblies. Guide for testing under conditions of arcing due to internal fault IEC-60292 Starters IEC-60146 Semiconductor converters and Pulse transformer IEC-61000-1995 Electromagnetic compatibility (EMC) IEC-60148 Semiconductor rectifier assemblies and thyristor converters IEC-60034-34 Guide for testing three phase induction motors IEC-60079 Classification of hazardous areas IEC-60896 Lead acid type – With Plante positive plate IEC-60309 Plugs, socket-outlets and couplers for industrial purposes IEC-60598 Luminaries : General requirement IEC-60726 Dry type power transformers I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 14 of 25 Standards Descriptions IEC-60870 Telecontrol equipment and systems IEC-60874 Conductors for optical fibres IEC-60921 Ballasts for tubular florescent lamps – Performance requirements IEC-60929 AC-supplied electronic ballasts for tubular fluorescent lamps – Performance requirements IEC-61850 Communication networks and systems in sub stations IEC-60364 Electrical installations of buildings IEEE-80 Std. 2000 Guide for safety in Alternating Current Sub station grounding IEEE-665 Guide for generating station grounding IEEE-446 Emergency standard power systems IEEE-485 Recommended practice for sizing large lead acid storage batteries for generating stations and sub-stations IEEE-519 Harmonic limits in power systems IEEE-32 Requirements, Terminology and test procedure for Neutral Grounding Devices. IEEE-48 Test Procedures and Requirement for High Voltage Alternating Current Cable terminations. IEEE-81 Measuring Earth Resistivity Ground Impedance and Earth Surface Potentials of a Ground System. ANSI/IEEE-242 Protection and Co-ordination of Industrial and Commercial Power Systems. IEEE-422/1986 Guide for the Design and Installation of Cable Systems in Power Generating Stations. IEEE/ 450-1995 Recommended Practice for maintenance, testing and replacement of Large lead Storage Batteries for Generating Stations and Substations. IEEE-484 Installation Design and Installation of Large Lead Storage Batteries for Generating Stations and Sub-stations. IEEE/ 605 1998 Guide for Design of Sub-station Rigid Bus Structures. IEEE/ 979 -1979 Guide for Sub-station Fire Protection. IEEE/ 62.1/1984 IEEE Standard for Surge Arrestors for AC Power Circuits. IEEE PAS VOL-97 Generator Neutral Grounding Some Aspects of Application for Distribution Transformer with Secondary Resistor and Resonant Types. 4.1 AC Motors shall be suitable for 3 phase, 50 Hz supply and shall be of the squirrel-cage induction type suitable for direct-on-line starting. The temperature rise over 50 deg.C ambient of all motors shall be limited to Class B. The motor winding shall be of copper. Motor shall be suitable for voltage variation of ±10%, frequency variation of ± 5% and combined voltage and frequency variation of 10%,and also meet the rating output. I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 15 of 25 4.2 All insulated windings shall have Class F non-hygroscopic insulation systems rated for Class B temperature rise above ambient temperature of 50°C in accordance with the standards. 4.3 The rating of each motor shall be with at least 15% extra margin over the input power requirement and shall be continuously rated. Motor shall be considerd 1.1 times operating current. Motors shall be capable of starting and accelerating to full speed at 80% of the nominal voltage and shall not stall at 70% of nominal voltage for one (1) minute. With voltage and frequency within permissible variation band, the motors shall be capable of 3 equally spaced starts in 1 hour with motor initially at temperature not exceeding rated operating temperature. 2 start in succession with motor initially at a temperature not exceeding rated operating temperature. The starting voltage of motors shall be 70%-80% rating voltage (the value shall be finalized by purchaser). 4.4 All motors above 30 kW shall have space heater for avoiding condensation during idle hours. The voltage of heater shall be 240V、50Hz AC ,the power of heater shall be __kW (To be filled in by CONTRACTOR ,finalized by purchaser) . 4.5 The noise level of motors shall be in accordance with IEC/IS 12065. The libration shall be within the limit of IEC/IS12075. The motor shall be endure the the libration of driving equipment. 4.6 Motors shall be self ventilated type; total enclosed fan cooled or closed air circuit air-cooled type. Motors located outdoors shall be of weatherproof construction. The degree of protection of motor enclosure shall not be less than IP-54 (indoor)/IP-55 (outdoor). All outdoor motors shall be provided with rain hood。 4.7 All 11 kV motors shall have six (6) winding temperature detectors, bearing temperature detectors, hot and cold air temperature indication (for CACA, CACW type). In addition, flow switches shall be provided for water-cooled motors and forced lubrication bearing, if used. 4.8 Motors up to 200 kW will be 415V, rated and above 200 KW will be of 11kV. Motors of IDCT shall be consider 415V system. 4.9 Cable box and terminal box for 11 kV motors shall be phase segregated type where ELASTIMOLD termination with protective cover is not provided. 415V motors shall have I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 16 of 25 non-phase segregated cable box. Cable box shall withstand maximum fault current for duration of 0.25 sec. The sealing equipment shall be ROXTEC. 4.10 The motors shall be designed to be energy-efficient and have high power factor and low starting currents. All HT motors shall have efficiency and power factor higher than 0.90 and 0.88 respectively. The ratio of rating starting current and rating of current of motor: Upto to 20kW ：Id/In<7 above 20kW ：Id/In<6.5 11kV motor ：Id/In<6 4.11 The motor winding shall be of copper. 4.12 The overspeed of motor shall be 120% and two minutes. 4.13 All motors shall be provided two grounding point at two side of motor, and have the visible grounding indication . 4.14 All motors shall be subjected to works routine tests. In addition, 11 kV motors winding shall conform to the requirement and impulse voltage withstand levels as per IEC 60034-15. Type test certificate on identical rated motors shall be furnished as a proof of design. 4.15 The bearing of motor shall be sealed, prevent the entrance of water and dust. 4.16 The life of bearing shall be more than 15 years. 4.17 The connection of between inter cable and outer of cable of motor shall be provided by bidder. 4.18 Datasheet of motor:(To be filled by bidder) 11.0.0 MOTORS 415V 11.1.0 GENERAL 11.1.1 Application 11.1.2 Quantity 11.1.3 Make 11.1.4 Frame Size 11.1.5 Applicable Standard 11.2.0 TYPE AND RATING I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 17 of 25 11.2.1 Type of Motor 11.2.2 Service 11.2.3 Duty Cycle/Designation 11.2.4 Normal/Energy efficient 11.2.5 Rated Continuous Output At 50°C ambient KW 11.2.6 Rated Speed r.p.m. 11.2.7 Rated Voltage & % variation Volt 11.2.8 Rated Frequency & % variation Hz 11.2.9 Full load current Amps 11.2.10 No load current Amps 11.2.11 Rated Power Factor a) Full load b) ¾ load c) ½ load 11.2.12 Efficiency at rated voltage and frequency a) Full load % b) ¾ load % c) ½ load % 11.3.0 PERFORMANCE 11.3.1 Method of Starting 11.3.2 Starting Current at rated voltage inclusive of tolerance % f.l.c. 11.3.3 Starting Torque at rated voltage Kg.m 11.3.4 Starting time at 80% Voltage ， ，， ，100% Voltage a) With load Sec. I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 18 of 25 b) Without load (driven equipment coupled) Sec. 11.3.5 Safe stall time at 110% rated voltage a) Hot condition Sec. b) Cold condition Sec. 11.4.0 CONSTRUCTION 11.4.1 Degree of Protection of Enclosure 11.4.2 Method of Cooling 11.4.3 Insulation Class a) b) c) 11.4.4 Temperature Rise Over 50°C ambient (by resistance Deg. C 11.4.5 Tropicalised Yes/No 11.4.6 Winding Connection 11.5.0 BEARINGS D.E. N.D.E a. Make kV b. Type c. Recommended lubricant 11.6.0 MOTOR TERMINAL BOX a. Type b. Fault withstand i) Current kA ii) Time Sec. c. Cable lugs & glands furnished Yes/No. I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 19 of 25 11.7.0 ACCESSORIES 11.7.1 Space Heaters a. No. X Watt b. Voltage, phase & frequency Volt./Nos./Hz 11.7.2 Winding temperature detector a. Type b. Nos. furnished 11.7.3 Bearing temperature detector a. Type b. Nos. furnished 11.7.4 Temperature Indicators a. Type b. Nos. provided c. Locations 11.7.5 Temperature Alarm Contact kV a. Nos. provided b. Locations c. Contact rating 11.7.6 Flow Switch a. Type b. Nos. provided c. Locations d. Contact Rating 11.7.7 Current Transformer for differential protection I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 20 of 25 a. Nos. provided b. Current Ratio c. Class 11.7.8 Accessory Terminal Box a. No. provided b. Cable glands furnished? Yes/No. 11.8.0 GROUNDING No. of grounding pads provided a. On motor body b. On terminal box 11.9.0 MISCELLANEOUS 11.9.1 Type of mounting 11.9.2 Overall dimension (LxDxH) mm 11.10.0 MOMENT OF INERTIA (GD 2 ) a. Stator Kg.m 2 kV b. Rotor Kg.m 2 c. Total Kg.m 2 11.11.0 WEIGHT a. Stator Kg b. Rotor Kg c. Total Kg 5 Quality and Performance Guarantee 5.1 Manufacture or inspection for cooling towers shall meet national standards and manufactory standards. The designe of the cooling towers shall be under the conditions of full design load with stable operation to reduce the loud noise and vibration. I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 21 of 25 5.2 Noise of the cooling towers shall satify the interrelated requirements. 5.3 If the cooling tower,withine the period of quality assurance can not meet performance requirements due to equipments design and manufacture quality issues,the bidder shall be responsible for solving the problems for free. 5.4 Noise in the place where 1.0m away from the exteriors of the cooling tower shall no higher than 85 decibel. If the noise exceeds this value,the bidder shall provide effective measures (devices) to meet the requirements of noise controlling. 5.5 The performance guarantee test will be carried out within 6 months after 14 days reliability running of unit. The bidder will provides full cooperation for PG test and comlete the correction for ensure the performance meet the requirement of contract. 6 Limits & interface of design and supply The bidder shall ensure the whole performance and equipment quality of IDCTs. The bidder shall provides all the equipments and materials of cooling tower above ± 0.000m elevation except civil work, it includes fillings, water drench devices, Water decanier, air duct, fans, motors, speed reducer,etc. For the circulation cooling pipe, the bidder shall provides the CW pipes above +2.000m elevation without isolation valves. The bidder shall furnish all the installation drawings, civil construction drawings and calculation books of IDCT as per requirement of design institute (NEPDI), these drawings should be submitted to design institute (NEPDI) for review and approve, the final construction drawing of IDCT will be furnished by design institute (NEPDI). 7 Major Technical Parameters Table(to be filled by bidder) 7．1 Physical Dimension of Induced Draft Cooling Tower in Every Section Plane dimension of cooling tower: Height of incoming pipe: Diameter of incoming pipe: 1200mm Water head needed by incoming pipe: 7．2 Water Quantity and Water Temperature of Mechenical Cooling Tower （1）Quantity of Cooling Water in Every Group of Cooling Tower: 82454m3/h； （2）Incoming Water Temperature : ≤ 43℃ I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 22 of 25 （3）Outgoing Water Temperature: ≤ 33℃ 7. 3 Cooling Tower Fan （1）Model: （2）Diameter of blade: （3）Voltage of Supporting Electric Motor: （4）Power of Supporting Electric Motor: （5）Efficiency of Supporting Electric Motor: （6）Vane Number: （7）Input air: 7．4 Cooling Tower Equipment Major Data Sheet(to be filled by bidder) (to be filled by bidder) (to be filled by bidder) (to be filled by bidder) No. No. No. No. Item Symbol Unit Parameter Remarks 1 General Design Requirement of Cooling Tower 1-1 Model of Cooling Tower Reverse Flow Induced draft cooling tower with Reinforced Concrete Structure 1-2 Arrangement of Tower Group One unit contains 16 sections with back to back arrangement 15 for work 1 for standby 1-3 Sets of fan/ one unit 16 1-4 Structural Style of Cooling Tower Reinforced concrete 1-5 Equipment Spec.& Type 2 Loading conditions of hot water of cooling tower dry-bulb temperature: 34.5℃ Wet-bulb temperature: 28.6℃ Design relative humidity: 60% 2-1 Design quantity of general circulating water Q’ m 3 /h 82454 For one Unit 2-2 Maximum of design quantity of cooling tower for Q m 3 /h 5497 I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 23 of 25 No. No. No. No. Item Symbol Unit Parameter Remarks single tower 2-3 Quantity of cooling tower —— section 16 15 for work 1 for standby 2-4 Incoming water temperature t1 ℃ ≤ 43 2-5 Outgoing water temperature t2 ℃ ≤ 33 3 Technical Parameters of Cooling Tower 3-1 Area of water drenching of single tower S m×m 3-2 Air inlet height H1 m 3-3 Water supply height Hb m 3-4 Fill height h m 3-5 Density of water drenching q m3/(m 2 ·h) 3-6 Diameter of fan Ф mm 3-7 Air input G m 3 /h 3-8 Type —— —— 3-9 Motor power N kW 3-10 Shaft power of fan N’ kW s 3-11 Total pressure Δ P Pa 3-12 Efficiency 3-13 Rotated speed r.p.m. 3-14 Relative humidity ψ % 3-15 Air density γ a kg/m 3 3-16 Gas water ratio λ —— 3-17 Wind speed of drenching water section V m/s 3-18 Quality wind speed ga kg/( m 2 ·s) 3-19 Design swap data Ω —— 3-20 Drifting ratio —— % 3-21 Reference noise of single tower —— dB（A） 3-22 Evaporation loss QE m 3 /h Quatity of single tower 3-23 Qualtity of makeup water QM m 3 /h 3-24 Use level of concrete —— m 3 Quatity of each unit 3-25 Inlet piping Diameter Ф mm 1200 I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 24 of 25 8 Materials of main components of equipment (filled out by bidder) No. Component name Material Remarks 1 Air duct FRP 2 Drift Eliminator 3 Filling FRP or PVC 4 Sparge pipe ss 5 Nozzle 6 Fibre glass reinforced plastic filling shelf 7 Fibre glass reinforced plastic flow deflecting ring 8 Embeded parts & steel member 9 99 9 Cleaning, Painting Cleaning, Painting Cleaning, Painting Cleaning, Painting, ,, , Insulation Insulation Insulation Insulation and Name and Name and Name and Name- -- -plate plate plate plate 9.1 Cleaning 9.1.1 Prior to shipment, equipments shall be cleared. 9.1.2 All the internal objects, such as flitter, iron slag, welding slag, rag and other impurities shall be removed from components, while the internal water shall be drained and the equipments shall be sealed properly with a fixed end cover. 9.2 Painting Painting Painting Painting 9.2.1 Bidders shall choose the best way of painting to prevent the equipment from corrosion during the shipment and storage. 9.2.2 Prior to the shipment, the bidder shall spray the equipment with two layers of primer and three layers of top coat. 9.2.3 Bidders shall provide complete description of mitigate corrosion, including the description of cleaning, painting technics and the characteristics of coating. 9.2.4 The surface painting colour code of IDCT will be confirmed by Owner and shall be complied with by the bidder. 9.3 Name-plate 9. 3.1 The name-plate of the equipment shall be made of stainless steel. 9.3.2 The name-plate shall be installed in a location readily visible to the operators. 9.3.3 The contents of the nameplate shall at least include equipment name, manufacturer name, manufacture date, factory number, the KKS code of equipment , the number of I n d i a WPCL 6 ×6 0 0MW Pr o j e c t Bi d d i n g Tec h n i c al Spe c i f i c at i o n o f I DCT Page 25 of 25 manufacture certificate, equipment model and classification, main parameters of the equipment, and weight etc, while the contents of nameplate shall be made in Chinese & English versions. Annex-2 Attached Drawings The layout of IDCT units please refer to the attachment.
Report "Bidding Technical Specification of IDCT 20090727"