Repairing and maintenance of 11 KV Overhead Line (Vasant Vihar feeder) from Ray colliery Shiv Mandir to RCM Siding under GM Unit, Piparwar Area.

Amount

Dismantling of pole/ street light standard/ strut embedded in cement concrete foundation etc. as required.

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 10.00 metre and upto 12.00 metre.

Supplying and erection of galvanised stay set for 11 KV over head lines complete with 19/ 20 mm dia X 1.8 metres long stayrod, anchor plate of size 45 cm X 45 cm X 7.5 mm thick, thimble, stay clamps, turn buckle ( 20 mm X 600 mm ), 7/ 4.00 mm dia G.I. stay wire and 11 KV strain insulator etc 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.

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) pole top bracket/ cross arm for single 11 KV over head line conductor complete with 50 mm X 6mm flat iron clamp, bolts, nuts and washers including drilling holes for insulator pins, bolts and nuts etc and painting with primer and finish paint as required.

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) V shape cross arm for two 11 KV over head line conductors complete with 50 mm X 6mm M.S. flat iron clamps, bolts and nuts including drilling holes for insulator pins, bolts, nuts and washers etc (as per drawing) and painting with primer and finish paint as required.

Erection of pole top/ straight two wire/ V shape two wire, angle iron/ channel iron, cross arm on steel tubular/ rail/ PCC pole for 11 KV as required.

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.

Erection of double pole 3 wire cross arm for 11 KV over head lines as required.

Supplying and erection of 11 KV pin insulator complete with large steel head G.I. pin, nuts, washers etc. as required.

Supplying and erection of 11 KV disc insulator for 11 KV over head lines with galvanised insulator fittings, ball and socket type and complete with galvanised strain clamps, bolts, nuts, washers etc. as required.

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.

Earthing with G.I. earth plate 600 mm X 600 mm X 6 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 fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Dismantling of over head lines comprising of copper/ aluminium over head conductor, G.I. wire, cross arms, insulators etc. as required. (03 Span X 60 Mtr./span X 3 Wire X 1.05 X 0.214 Kg/Mtr. = 121.338 Kg).

Erection of all aluminium conductor of 7/1.96 mm to 7/3.10 mm diameter including binding etc. as required. (03 Span X 60 Mtr./span X 3 Wire X 1.05 X 0.214 Kg/Mtr. = 121.338 Kg).

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources). For making steel tubular pole collar in the existing poles. (45 Nos. X 0.80 mtr. X 0.60 mtr. X 0.60 mtr. = 12.96 Cum).

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. (42 Span X 60 Mtr. X 3 Mtr. = 7560 Sqr.Mtr.).

Supplying and erection of 50 mm X 50 mm X 6 mm angle iron (4.46 kg/mtr) as required. (Total Length = 16 Nos. X 2.5 Mtr. = 40.0 Mtr.) (Total weight = 40.0 mtr. X 4.46 kg/mtr. = 178.40 Kg).

Supply and erection of 6 SWG G.I wire for Cradling and Earth Continuity. Total No. of Spans for Cradling = 20 Nos. Length of GI Wire Required for cradling = (20 Spans X 60 Mtr. X 2 Lengths + 20 Spans X 40 rings X 2 Mtr.) X 1.05 = 4200 Meter Total No. of Spans for Earth Continuity = 25 Nos. Length of GI Wire for Earth Continuity = 25 Spans X 60 Mtr. X 1.05 = 1575 Meter Total weight = (4200 + 1575) mtr. X 0.147 kg/mtr. = 848.925 Kg

16 mm X 125 mm bolts and nuts with washers.

Supplying and fixing of 11 kV, 400 Amps Outdoor type gang operated air break triple pole switch of required capacity with 3 post / pin type insulator per phase, mounted in horizontal or vertical position on provided cross arms with adequate length of G.I. Pipe for operating handle erected on extended square shaft. The operating handle provided with lock and key at suitable height from ground with necessary clamps.

Painting of pole with one coat of red oxide paint and two coats of Aluminium Paint.

Total impact of GST for the purpose of CTC

M/S SHREE OM ELECTRICALS

M/S BABA & CO

M/S MAA AMBEY ENTERPRISES