Annual maintenance of 4 TB mines OH line network at Kedla OCP under Hazaribagh Area

Amount

Erection of steel tubular or rail pole strut in cement concrete 1:3:6 (1 cement :3 coarse sand : 6 graded stone aggregate 40 mm nominal size ) foundation including excavation and refilling and secured with holding clamps, bolts, nuts, etc. as required.( 10 % of total number of 3.3KV OH line poles in mines = 199*0.1=19.9~ 20 nos.) + 10 % of total nos. of lighting poles in mines = 65*0.1=6.5~ 7+ 9 (new poles to be erected)= 16 nos.

Dismantling of pole/ street light standard/ strut embedded in cement concrete foundation etc. as required.(( 10 % of total nos. of lighting & 3.3KV OH linepoles in mines = 264*0.1=26.4~ 27 nos.)

Erection of ACSR conductor of 7/3.35 mm to 7/4.00 diameter and above including binding etc. as required. ( 20 % of the total nos. of spans of 3.3KV OH line of mines= 118*0.2= 23.6~ 24 spans )

Erection of all aluminium conductor of 7/1.96 mm to 7/3.10 mm diameter including binding etc. as required .( 20 % of the total nos. of spans of lighting poles in mines= 52*0.2= 10.4~ 11 spans + 8( new spans to be erected)= 19 spans)

Dismantling of over head lines comprising of copper/ aluminium over head conductor, G.I. wire, cross arms, insulators etc. as required.( 20 % of total nos. of lighting & 3.3KV OH line spans in mines = 170*0.2=34 spans)

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) cross arm for 4 wire over head line complete with clamps, bolts, nuts and washer etc including drilling of holes for insulator pins etc (as per drawing) and painting with primer and finished paint as required

Supplying and erection of stay set complete (galvanised) with 19/20 mm dia X 1.8 metres long stay rod, anchor plate of size 45 cm X 45 cm X 7.5 mm, thimble, stay clamps, turn buckle ( 20 mm X 60 cm ), 7/ 4.00 mm dia G.I. stay wire and 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) cross arm for two 11 KV over head line conductors complete with 50 mm X 50 mm X 6 mm (angle iron bracket welded to the channel iron and 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 11/22/33 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.

Supplying and erection of a set of cross bracing frame work for 11 KV over head line double pole structure having four members fabricated out of 50 mm X 50 mm X 6 mm angle iron to form a rectangle of minimum size 1400 mm width X 2500 mm height, complete with 50 mm X 6mm M.S. flat iron clamps, bolts and nuts including drilling holes for insulator pins, bolts and nuts etc (as per drawing) and painting with primer and finish paint as required

Erection of double pole 3 wire cross arm for 11KV/ 22KV/ 33 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.( 10% of total nos. of pin insulator in mines OH line= 0.10*303= 30.3~31 nos.)

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(( 10% of total nos. of disc insulator in mines OH line= 0.10*333= 33.30~34 nos.)

Providing and making steel pole collar with cement concrete (1 cement : 3 coarse sand : 6 stone aggregate 20mm) of specified size and shape including form work, plastering if required, curing etc as required. (volume of pole/ pipe not to be deducted)(40x0.5x0.5=10)

Providing and fixing 16 sq mm aluminium service cable

Supplying and erection of 100 mm X 110 mm shackle insulator with G. I. Bolt, nuts and straps etc. as required

Clamp , Bolts , Nuts etc

Dismantaling and installation of lighting transformer/AB switch

Supply & fixing of 10 sq. Mm copper cable

Making of cradle guard by supplying 6 SWG GI wire

Erection of cradle guard as required

Supplying and fixing of 32mm dia X 2 mtr long gi pipe bracket for mounting of hpmv/hpsv/fluorescent light fittings on pole including bending the pipe 2 nos 40mm X 3 mm flat iron clamp and all accessories

Total impact of GST for the purpose of CTC

M/S VAISHALI ELECTRIC COMPANY (BID ID -1185103)

M/S ADITYA ENTERPRISES (BID ID -1185143)