Repair/maintenance of 3.3KV OH line feeder no 01,02 and 03 from Kalyani substation to SDOCM mine area in r/o SDOCM Project of Dhori Area against approved monsoon activity 2025.

Amount

Feeder no-01 (Rat not filling)

Erection of conductor of 7/3 35mm diameter and above including binding etc as required rabbit conductor 15 span x55mtr x 3wire = 2475.00 mtr x 214kg/km= 529.65 kg

Supplying and erection of galvanised stay set for 11 KV over head lines complete 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 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 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 of pole top/ straight two wire/ V shape two wire, angle iron/ channel iron

Providing of 8 SWG GI wire for earth continuity 05 span x55mtr x 2 wire= 550 mt+30%(165)= 715 mtr x 0.131kg/mt= 93.66 kg 25 span x55mtr x0.131kg/mt= 180.12 kg total 273.78 kg

Erection of 8 SWG GI wire for cradling 25 span x55mtr x0.131kg/mt= 180.12 kg

Erection of cradle wire 05 x 44 nos= 220 nos

Dismantling of over head lines comprising of copper/ aluminium over head conductor, G.I. wire, cross arms, insulators etc. as required 15 span x55mtr x 3wire = 2475 mtr x 214kg/km= 529.65 kg Iron material-chennel arm – 08 set x 1.2 mtr – 9.6 mtr x 7.14 kg/mtr- 68.54 kg (for conductor in single pole) 11kv pin insulatotor-57 set x 2.1 kg – 119.70 kg 11KV disc insulator with hardware - 45 set x 5.5 kg- 247.50 kg

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.

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required

Patrolling, checking, and testing of OH line for routine maintenance and breakdown as and when required.

Providing $ fixing of PG clamps

Providing and fixing of lightning conductor finial, made of 25 mm dia 300 mm long, G.I. tube, having single prong at top, with 85 mm dia 6 mm thick G.I. base plate including holes etc. complete as required.

Earthing with copper earth plate 600 mm X 600 mm X 3 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

Feeder no-02 (Rate Not Filling)

Erection of conductor of 7/3 35mm diameter and above including binding etc as required rabbit conductor 15 span x55mtr x 3wire = 2475.00 mtr x 214kg/km= 529.65 kg

Supplying and erection of galvanised stay set for 11 KV over head lines complete 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 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 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 of pole top/ straight two wire/ V shape two wire, angle iron/ channel iron

Providing of 8 SWG GI wire for earth continuity & cradling10 span x55mtr x 2 wire= 1100 mt+30%(330)= 1430 mtr x 0.131kg/mt= 187.33 kg 05 span x55mtr x0.131kg/mt= 36.02 kg total 223.35 kg

Erection of 8 SWG GI wire for cradling 05 span x55mtr x0.131kg/mt= 36.02 kg

Erection of cradle wire 15 x 44 nos = 660 nos

Dismantling of over head lines comprising of copper/ aluminium over head conductor, G.I. wire, cross arms, insulators etc. as required 15 span x55mtr x 3wire = 2475 mtr x 214kg/km= 529.65 kg Iron material-chennel arm – 04set x 1.2 mtr – 4.8 mtr x 7.14 kg/mtr- 34.27 kg (for conductor in single pole) 11kv pin insulatotor-30 set x 2.1 kg – 63.00 kg 11KV disc insulator with hardware - 21 set x 5.5 kg- 115.50 kg

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.

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

Patrolling, checking, and testing of OH line for routine maintenance and breakdown as and when required.

Providing $ fixing of PG clamps

Providing and fixing of lightning conductor finial, made of 25 mm dia 300 mm long, G.I. tube, having single prong at top, with 85 mm dia 6 mm thick G.I. base plate including holes etc. complete as required.

Earthing with copper earth plate 600 mm X 600 mm X 3 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

Feeder no-03 (Rate not filling)

Supplying and erection of galvanised stay set for 11 KV over head lines complete 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 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 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.

Patrolling, checking, and testing of OH line for routine maintenance and breakdown as and when required.

Total impact of GST for the purpose of CTC