Installation of A.B isolator 33KV, 1250A and 11KV, 800A for power supply to 33KV/11KV Transformer at Regional Substation Kathara under Kathara Colliery.

Amount

Erection of metallic pole of following length in cement Concrete 1:3:6 (1 cement: 3 coarse sand :6 graded stone Aggregate 40 mm nominal size) foundation including Excavation and refilling etc. as required) (Above 10 Mtrs and upto 12 Mtrs)

Supplying of two lengths of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) double pole cross arm for three wire 11KV over head line conductors complete with through bolts and nuts for clamping to the poles, 50 mm X 6 mm M.S. flats welded on one side to the channel iron and with bolts and nuts on the other side for tying the cross arms together, including drilling holes for insulator pins/ fittings, bolts, nuts and washers etc (as per drawing) and painting with primer and finish paint as required.

Supply of GOAB switch of 11 KV, grade 800A (Horizontal type heavy duty)

Supply of GOAB switch of 33 KV, grade 1250A (Horizontal type heavy duty)

Supplying and erection of three piece nonlinear resistor type lightning arrestor suitable for 3 wire, 11 KV overhead lines with rated voltage 9 KV (rms) with a nominal discharge current rating of 5 KA and complete with galvanised clamping arrangement, G.I. bolts, nuts, washers etc. as required.

Supplying and erection of three piece nonlinear resistor type lightning arrestor suitable for 3 wire, 33 KV overhead lines with rated voltage 30 KV (rms) with a nominal discharge current rating of 10 KA(station class) and complete with galvanised clamping arrangement, G.I. bolts, nuts, washers etc. as required.

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.

Providing and fitting of 25mm x 5mm G.I strip on surface or in recess for connections etc. as required

Labour charges for item no. 1.03 & 1.04

Total impact of GST for the purpose of CTC

AASHISH ENTERPRISES

M/S SARWAN SINGH