Extension/ erection n Dismantling of HT OH Line of 3.3 n 6.6 KV of feeder 6,7, 8, 22 n 24 (Route length for erection app.1020 mtr and for dismantling approx. 540m) for the period of 06 months as when n where required basis at Mines

Amount

Erection of metallic pole of length Above 11.00 metre and upto 13.00 metre, 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.

Labour cost for loading, unloading of metallic poles, conductors etc. for transportation from store to site (vice- versa). (Truck will be provided departmentally).

Supplying and erection of galvanised stay set for 11KV overheadlines complete with 19/20mm dia X1.8 metres long stay rod, anchor plate of size 45cmX45cmX7.5mm thick, thimble, stay clamps, turn buckle (20 mmX600mm), 7/4.00mm dia G.I. stay wire and 11KV strain insulator etc. in cement concrete 1:3:6 (1cement: 3coarses and :6 graded stone aggregate 40mm 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.

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 11KV/ 22KV/ 33 KV over head lines as required.

Erection of angle iron/ channel iron cross arm on steel tubular/ rail pole etc. as required. [For conductor bracket= 13x2=26 & Cradle guard bracket= 12]

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

Erection/ Tensioning of all aluminium conductor of 7/3.40 mm to 7/4.00 mm diameter and above including binding etc. as required. (Route length for erection approx. 1020m).

Erection of all aluminium conductor of 7/1.96 mm to 7/3.10 mm diameter including binding etc. as required. [For earth wire. (Approx. route length=1020 mtr)].

Supply of 8 SWG GI wire for Cradling.

Erection of Cradle Guard 3 Wire. (6 nos. of spans).

Finishing with Epoxy paint (Aluminium Colour) (two or more coats) at all locations prepared and applied as per manufacturer's specifications including appropriate priming coat (red oxide zinc chromate), preparation of surface, etc. complete, on 25 nos. of Poles.

(a) Nomenclature of poles ( Feeder No., Voltage, Number of poles etc.) and (b) colour coding of poles of feeder with radium sticker of colours as required.

Supply and erection of approved make safe earthing electrode consisting pipe-in-pipe technology as per IS 3043-1987 made of corrosion free G.I. pipes with constant ohmic value surrounded by highly conductive compound with high charge dissipation suitable for effective and maintenance free earthing in earth pit of minimum bore dia. 150mm size, as mentioned below : With 2 metre G.I. pipes having outer pipe dia of 50mm having 80-200 micron galvanizing, Inner pipe dia. of 25mm having 200-250 micron galvanizing, connection terminal dia. of 12mm in nominal soil with 25 kg (one Bag) back filling bentonite compound UL listed and confirm to relevant International/Indian standards around electrode upto ground level.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections 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.

Making deep bore hole 150mm dia, 7 ft. deep for each earthpit

Providing associated hardware like nuts-bolts, Pole clamps, for fixing of Lightening arrestor.

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

Dismantling of over head lines comprising of copper/ aluminium over head conductor, G.I. wire, cross arms, insulators etc. as required. (Approx. route length 540m).

Total impact of GST for the purpose of CTC