Day to day erection and dismantling of short span (33KV/6.6KV/3.3KV) OH Line at different location in mines for supplying power to excavators, drills and pumps etc of Balram OCP for a period of one year.

Item Description/ Heading

Erection of metallic pole of following length in cement concrete 1:3:6(1Cement: 3 coarse sand:6 graded stone aggregate 40mm nominal size) foundation including excavation & refilling etc. as required. (Above 11m and up to 13 m)

Fabrication of steel pole for making upto 13mtr long.

Supplying & erection of stay set complete (galvanized) with 19/20 mm dia x 1.8 metres long stay rod, anchor plate of size 45cm x 45cm x 7.5mm, thimble, stay clamps, turn buckle (20mm x 60cm), 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 & 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 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 11/22/33 KV as required.

Supply of steel materials for HT overhead lines. 01. TP support (angle iron 65 x 65 x 6 mm) = 5 nos. x 3 mtr x 5.8 kg/mtr = 87 kg 02. DP support (angle iron 65 x 65 x 6 mm)= 20 x 2.5 mtr x 5.8 kg/ mtr = 290 kg 03. Cradle guard (angle iron 65 x 65 x 6 mm)= 40 x 2 x 3 mtr x 5.8 kg/mtr = 1392 kg 04. Running earth support (angle iron 50 x 50 x 6 mm)= 179 nos. x 0.5 mtr x 4.5 kg/mtr= 402.75 kg 05. Flat iron clamp (50 mm x 6 mm)= 351 nos x 0.5 mtr x 2.36 kg/mtr= 414.18 kg

Fabrication of steel materials for H.T. overhead lines. 01. DP support (angle iron 65×65×6mm)=25×2.5mtr×5.8kg/mtr=362.5kg 02. Cardle guard (angle iron 65×65×6mm)=44×2×2mtr×5.8kg/mtr=1020.8kg 03. Running earth support (angle iron 50×50×6mm)=193nos×0.4mtr×4.5kg/mtr=347.4kg 04. Flat iron clamp(50mm×6mm)=419 nos×0.5 mtr× 2.36kg/mtr=494.42 kg.

Supply and fixing of Nut & Bolts with washers.

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 FRLSame 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 disc/pin insulator for 11KV overhead lines as required.

Erection of all aluminium conductor of 7/3.40mm to 7/4.00mm(125sqmm) diameter and above including binding etc.

Erection of all aluminium conductor of 7/1.96 mm to 7/3.10 mm (50sqmm) diameter including binding etc. as required.

Erection of cradle guard as required. (Bearer 08 swg G.I wire 4nos x 60 mtr) & ( Cross-lacings 08 swg G.I wire 46 nos x 03 mtr) (18 swg steel wire used for both bearer & cross-lacing wires for tying form work 0.890kg/100mtr)

Supply of 08 SWG G.I. wire Including 18 swg steel wire for tying form work. 1.for cradle guard =1716.00kg 2.for running earth as required=360.00 kg 3.for earthing of pole, GOAB=13.2 Kg

Erection of G.I. wire No. 8 SWG including binding etc.

Earthing with G.I. earth pipe 4.5 metre long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/ coke and salt as required.

Supplying and laying 6 SWG G.I. wire at 0.50 metre below ground level for conductor earth electrode, including connection/ termination with GI thimble etc. as required.

Erection of GOAB for HT Overhead line including excavation of soil and fabrication & erection of steel materials(Channel Iron of size 100mm x 50 mm x 6mm (9.56 kg/m) =32.05 x 9.56= 306.39kg, for clamp50 mm x 8 mm GI Flat Iron (3.14 kg/m) =10nos. x 0.7 mtr.x3.14kg/mtr= 21.98kg) , (supply & erection of Operating pipe of size 40mm & operating handle with locking arrangement),supply &fixing of nut bolts, washers etc. as required.

Supply of manpower for treaming, cutting of trees and cleaning of proposed OH line erection route, receiving of pole/OH line materials from central store/regional store/ unit store and from other places etc. as required. (manpower: skilled-02 nos & unskilled- 04 nos)

Supply of three piece polymer make type lighting arrestor suitable for 3 wire, 6.6kv overhead lines with rated voltage 6KV (rms) with a nominal discharge current rating of 5KA and complete with galvanised clamping arrangement ,G.I. bolts ,nuts, washers etc. as required.

Erection of three piece polymer make type lighting arrestor suitable for 3 wire, 33KV/6.6KV/3.3KV overhead lines with rated voltage 30KV/6KV/3KV (rms) with a nominal discharge current rating of 5KA and complete with galvanised clamping arrangement, G.I. bolts, nuts, washers etc. as required.

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

Dismantling of overhead line comprising of copper/aluminium overhead conductor, G.I. wire, cross arms, insulators etc.

Dismantling of GOAB for HT Overhead line including steel materials, pipe etc.

Loading and unloading of materials from E&M workshop to worksite and work site to workshop.

Total impact of GST plus Labour Cess [@ 1 % (BOCW Cess to be deducted from the RA bill as per the value of the work progress)] for the purpose of CTC