Annual maintenance of 220 KV and 132 KV Transmission lines under ETSD, Khair under ETD-I, Aligarh.

Amount

Ground patrolling of following 220 KV & 132 KV lines by experienced persons by one end to another end for examining the tower its foundation, conductor, earth wire, tower earthing, insulators, vibration dampers position of corridor of line including trees etc to locate the defects/ facts which may occure on account of wind or other effect.(Patrolling whenever required)

220 KV Boner-Khair (excluding LILO portion at Aligarh) length 51.1 KM)

132 KV Khair-Jattari SC line (length 22.9 KM) 132 KV Khair-Gabhana DC line (length 14.38 KM) 132 KV Khurja-Jattari SC line (length 34.75 KM)

Fabrication & Fixing of tower parts/members in place of missing from scrap GI angle provided by department free of cost including carriage of steel angles from the substation store, punching holes, proper tightening of Nut & Bolts, punching & chamfering of bolts & cuting of nut, nolts of remaining cut pieces of tower member at different locations of above transmission lines.

For 220 KV

For 132 KV

Tack welding of new Nut & Bolts For 220 KV - 80 & For 132 KV - 100 Nos

Strengthening/Replacement of damaged jumpers at tension towers. for 220 KV line

Strengthening/Replacement of damaged jumpers at tension towers. for 132 KV line

Tightening of jumpers at tension towers on both sides of 220 KV line

Tightening of jumpers at tension towers on both sides of 132 KV line

Replacement of damaged/punchered insulators (polymer/porcelain) of string by porcelain/polymer insulator as per availability at different tower locations including carriage of material from store to work site of the above lines

For suspension string for 220 KV line

For tension string for 220 KV line

For suspension string for 132 KV line

For tension string for 132 KV line

Looping & Chopping of tree branches lying in the corridor of 27 meter & its stacking at proper place

Tree branches upto 0.50 meters dia For 220 KV - 550 Nos & For 132 KV - 220 Nos

Tree/ branches upto 0.51 meters to 1.00 meter dia For 220 KV - 300 Nos & For 132 KV - 300 Nos

Repairing of damaged conductor by using repair sleeves after lower down the conductor from tower and re-erection of conductor

ACSR panther Conductor for 132 KV line

ACSR Zebra Conductor for 220 KV line

Attending breakdown of broken conductor by binding & fixing Mid span compression joints including lowering down of conductor jointing of conductor using Mid span compression joint replacement of string (if needed) etc. and restring the same upto 1 Km.

ACSR panther Conductor for 132 KV line

ACSR Zebra Conductor for 220 KV line

Emergency patrolling of lines during tripping to detect the exact fault location & nature of fault

For 220 KV

For 132 KV

Attending breakdown of earthwire/tightening of loose earthwire upto 1 Km and also laying and erection of missing earthwire.

For 220 KV

For 132 KV

Tower top patrolling of line faulty section to ascertain the faults like polluted insulator, defective insulators fittings, red hot jumpers and tightening of jumpers (once in a year)

M/S KUMAR CONSTRUCTION COMPANY

Versha and Brothers