DEPARTMENTAL ESTIMATE FOR DIVERSION/ERECTION OF 11kV OVERHEAD LINE FROM SAHANAPAHARI TO BASTACOLLA COLLIERY UNDER BASTACOLLA AREA-IX

Erection of steel tubular or rail pole strut in cement concrete 1:3:6(1 cement : 3 coarse sand : 6 graded stone aggregate 40 mmnominal size ) foundation including excavation and refilling andsecured with holding clamps, bolts, nuts, 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.

Erection of double pole 3 wire cross arm for 11KV/ 22KV/ 33 KV over head lines 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 .

Supplying and erection of 11/3.3 KV pin insulator complete with large steel head G.I. pin, nuts, washers etc. as required

Supplying and erection of 11 KV/3.3 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 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/ 3.15 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 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

Erection of ACSR conductor of 7/3.35 mm to 7/4.00 diameter and above including binding etc. as required.

Supply of GI Wire 8 SWG

Erection of G.I. Wire No. 8 SWG including binding etc. as required.

Erection of cradle guard as required.

Erection of AB Switch 11KV 1240 A

Transportation of New Pole

Earthing with GI earth plate 600mm*600mm*6mm thick including accessories and providing masonary enclosure with cover plate having locking arrangement and watering pipe of 2.7metre long etc with charcoal /coke and salt as required

Supply of AB switch 11kv 1240A

Dismantaling of 11kv over head line conductor,Iron material, Disc and pin insulator etc

Transportation of old dismentle pole

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

Total impact of GST for the purpose of CTC