Maintenance of 12 no. electrical sub-station at AADOCM

Amount

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Supply and erection of 11 KV Pin insulator with large steel head GI pins nuts washers etc as required.

Supply and erection of 11 kv disc insulator for 11KV OH line for galvanized insulator fittings ball and socket type and complete with strain clamps, bolt nut washers etc. as required

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared 38 mtrs. x 10 mtrs= 380 sqm

Maintanence of bus-bar by providing skilled manpower

Maintenance of 3.3KV and 11KV double break GOS with spares like nut,bolt, clamps etc as required dismantling of burnt/defective one phase Male & Female fixed contact, moving contact etc and replace from the materials along setting it on the pole structure

Opening of all jumpers,P.G.clamp and cable joint from OH line cleaning the same binding/tightning of all joint.

Supply and fixing of Al nut bolts of size suitable for 50 mm busbar

Supply and fixing of al-Tee connection pipe to pipe bus bar

Supply and fixing of pad connector for GOAB and studs with aluminium bus bar of 48.3 mm pipe

Supply of alloy aluminium pipe inner dia 40.8 mm outer dia 48.3 mm wall thickness 3.6 mm

Fixing of alloy aluminium pipe inner dia 40.8 mm outer dia 48.3 mm wall thickness 3.6 mm

Supply and fixing of Al strip of 3 inch breadth, 4~5mm thick

Providing of Horn gap 11 KV from substation along with 06 nos. Pin insulator & copper wire with fuse wire

Supply of nuts & bolts of assorted size

Supplying of Aluminium Post insulator substation class

Fixing of Aluminium Post insulator substation class

Supply of 11 kV, 400Amp GOS switch

Fixing of 11 kV, 400Amp GOS switch

Supplying and laying 25 mm X 5 mm copper strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of brass nut bolt & spring washer spaced at 50mm)

Supplying of Copper lugs for cable connection 95 sqmm

Removal of existing dust/mud mixed gravel 6.00 x 4.00 x 0.150=3.60 cum 8.00 x 3.00 x 0.150 =3.60 cum 11.00 x 4.00 x 0.150 =6.60 cum total= 13.80cum*35.28 cft/cum=486.86 cft

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc. as requiredUpto 120 sq. mm

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. valve 1"

Providing and fixing brass bib cock of approved quality :20 mm nominal bore

Providing and fixing brass stop cock of approved quality :20 mm nominal bore

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :25 to 40 mm nominal bore

Providing and fixing H.T. danger notice plate of 250 mm X 200 mm, made of mild steel, at least 2 mm thick, and vitreous enameled white on both sides, and with inscription in single red colour on front side as required.

Providing and fixing of Electrical / mechanical interlock arrangement between isolators and breaker with all required material.

Total impact of GST for the purpose of CTC

M/s engineer associates (BID ID -1153179)

M/S UPENDRA ELECTRICAL (BID ID -1153407)