Electrical Notes & Articals Just another WordPress.com site Go Home Abstract Abstract of CPWD-Part 1 Abstract of IS Code. IS 15652/IS 11171 IS 1678/IS 1445 IS 5613 (I-II-II) IS 694/IS 1255/IS 1554/ IS 11892 IS 1255 IS 3043 IS 5039 Abstract of IE Rules Electrical Notes Electrical Q&A Electrical Q&A Part-1 Electrical Q&A Part-2 Electrical Q&A Part-3 IE Rules for DP Structure Posts Comments Uncategorized ← Fuse PCV Cable-Current Rating → Minimum Electrical Clearance. April 22, 2011 by Jignesh.Parmar Leave a Comment Minimum Electrical Clearance As Per BS:162. INDOOR Voltage in KV 0.415 0.600 3.3 6.6 11 Phase to earth in mm 15.8 19.05 50.8 63.5 76.2 Phase to phase in mm 19.05 19.05 50.8 88.9 127.0 6 139.00 8.94 7.40 Minimum Clearance between Lines Crossing Each Other As Per IE-1957 Rules System Voltage Low & Medium 11-66KV 132KV 132KV 3.94 7.6 1219.05 3.6 1066.94 .6 330.2 2057.49 800KV 7.10 7.05 3.58 4. OUTDOOR Voltage in KV 6.7 222.3 355.49 5.4 Minimum Working Clearance: OUTDOOR SWITCHYARD Voltage in KV To ground in mm 11 33 66 132 220 2750 3700 4000 4600 5500 Between section in mm 2500 2800 3000 3500 4500 Minimum Ground Clearance As Per IE-1957 (Rule 77) Voltage in KV 132 220 400 800 To ground in mm 6.8 863.49 5.8 279.84 12.58 400KV 5.15 22 33 101.8 1778 Phase to phase in mm 177.25 165.4 381 685.1 241.6 11 22 33 66 110 132 220 Phase to earth in mm 139.6 Minimum Electrical Clearance As Per BS:162.8 228.4 990.58 4.2 431.7 177.05 220KV 4.8 787. 94 5.6 3.0 6.40 Meter Various Air clearances to be provided as per IE rule 64 Voltage KV BIL (Kvp) P-E (cm) P-P(cm) P-G (Meter) Section Clearance(Mt) 33KV 170 30 40 3.90 Meter Above 400KV up to 500KV 19.60 Meter Above 132KV up to 220KV 15.49 7.5 Meter .220KV 400KV 800KV 4.3 meter for every additional 33KV Horizontal clearance between the conductor and Building High Voltage Up to 11 KV 1.1 Meter Over head Line Along Street (Parallel To Street) Low and Medium Voltage 5.94 7.49 7.94 Minimum Height above Railway As Per IE-1957 Voltage Broad Meter & Narrow Gauges Above 66KV up to 132KV 14.49 7.3 meter for every additional 33KV Clearance above ground of the lowest conductor As per IE Rule 77 Over head Line Across Street Low and Medium Voltage 5.8 66KV 325 63 75 4.7 Meter Extra High Voltage 3.5 220KV 1050 240 210 5.0 3.2 Meter 11KV To 33KV 2.8 Meter High Voltage 6.58 5.94 7.7 2.49 5.5 Clearances from Buildings of high and extra-high voltage lines IE Rule 80 Vertical Distance High voltage lines up to 33KV 3.0 Meter + Add 0.94 4.3 400KV 1425 350 410 8.40 Meter Above 220KV up to 400KV 17.0 110KV 550 115 135 4.94 7.5 4.58 5.0 Meter Extra High Voltage 2.7 Meter + Add 0.30 Meter Above 500KV up to 800KV 23. 5 Meter Line Passes Adjustment of Building Horizontal 1.8 Meter Over head Line Without Across or Along Street Low/Medium /HT line up to 4.3 meter for every additional 33KV Clearance between conductors and Trolley / Tram wires As per IE Rule 78 Low and Medium Voltage High Voltage Line Up to 11KV High Voltage Line Above to 11KV Extra High Voltage Line 1.olci.co m Lightning & Surge devices DEHN lightning and surge arrestors from Surgetek .surgetek.0 Meter Clearances from Buildings of low & medium voltage lines As Per IE Rule 79 For Flat roof.8 Meter + Add 0.0 Meter 11KV If Insulated Conductor Above 11 KV Line 5.za .2 Meter 1. Open Balcony.info Electronic Concepts Film Capacitors for wide range of applications www.5 Meter Line Passes Adjustment of Building Horizontal 1. Full training & business / job support .Nationwide www.2 Meter Clearance For pitched Roof Line Passes Over Building Vertical Clearance 2.6 Meter 11KV If Bare Conductor Low/Medium /HT line up to 4.5 Meter 3. Verandah Roof and lean to Roof Line Passes Over Building Vertical Clearance 2.2 Meter Clearance Electrical Training Call 0800 298 4200.8 Meter 2.are all you need! www.co .High Voltage 5.2 Meter Above 33KV Line 5.ecicaps. Notify me of new posts via email.Filed under Uncategorized About Jignesh.E(Electrical Engineer) having experience in Power Generation-Transmission-Distribution-MaintenanceProject. Website: www. Leave a Reply Guest Notify me of follow-up comments via email.jiguparmar. Language Ability:English-Hindi-Gujarati-French.Parmar B. Authors Jignesh.Parmar .com Like One blogger likes this post. PLC/SCADA/Autocad/Advance Excel. C Transformer Electrical Clearance in Substation Minimum Acceptable Specification of C. Power Distribution.Jignesh.T for Metering Search April 2011 M T WT F S S 1 2 3 4 5 6 7 8 9 10 .Parmar Blog Stats 19.Electrical Projects and Freelancer Programmer of Advance Excel. Over Load Relay & Contactor for Starter Type of Gland Gland Size Selection EHV XLPE – Current Rating XLPE Cable-Current Rating PCV Cable-Current Rating Minimum Electrical Clearance.533 hits About Me: By Profession I am an electrical engineer having more than 10 years experience in Power Transmission.C & Distribution T. Electrical Maintenance. Fuse Current Transformer Difference between Power T.Through Blogging I want to share my experience and knowledge and also help technical enthusiasts to find suitable solutions and updating themselves about various Electrical Engineering Topics. Designed some useful Excel Tools of Electrical Engineering as per NEC and IEEE codes. 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