Maintenance of LT and HT Overhead line at NSC, Jayant on as and when required basis for two years.

Amount

Jungle clearance including tree branch of route of overhead line as per site required and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared. Work to be done as per instruction of EIC.

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

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

Erection of Steel Tubular pole (13/11 mtr.)strut in cement concrete 1:3:6 (1 cement:3 coourse sand: 6 graded stone aggregate 40 mm nominal size) foundation including excavation and refilling and secured with holding clamps ,boltsd,nuts as required .

Painting of electrical poles , brackets, clamps with one coat red oxide and 2 coat of aluminium paint (Paint will be arranged by contractor at his own cost).

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per meter) pole top bracket/ cross arm for single 11/6.6 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 75mm x 40mm x 6mm (7.14 kg per metre) cross arm for 4/5-wire overhead line, complete with clamps, bolts, nuts, and washers, etc., including drilling of holes for insulator pins (as per drawing), and painting with primer and finished paint as required.

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per meter) V shape cross arm for two 11/6.6 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 angle iron/channel iron cross arm on wood/RCC/PCC/steel tubular/rail pole, etc., 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 6.6/11/22/33 KV as required.

Erection of all aluminium conductor of 7/1.96 mm to 7/3.10 mm diameter,19/3.66 and 7/14 SWG GI wire including binding, jumpering etc. as required.

Supply of Earth wire 7/14 SWG

Supplying and erection of stay set complete (galvanised) with19/20 mm dia X 1.8 metres long stay rod, anchor plate of size 45cmX45cmX7.5mm, thimble, stay clamps, turn buckle ( 20 mm X 60 cm ), 7/4 mm dia G.I. stay wire and strain insulator etc in cement concrete 1:3:6 (1 cement:3 coarses and : 6 graded stone aggregate 40mm nominal size) foundation including excavation and refilling etc. as required.

Earthing with G.l. earth pipe 4.5 meter 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.

Supply of shackle insulator (75mmx90mm) with GI bolts and nuts

Erection of LV/MV shackle/ pin insulator etc. as required.

Supply of MS angle 65x65x6 mm, channel 100x50x6mm and flats 50x6 mm

Supplying and erection of 11 KV disc insulator for 11 KV/6.6KV 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.l. pin, nuts, washers etc. as required

Supplying and fixing of 32 mm dia x 2.00 metres long G.I. pipe (medium class) bracket for mounting of LED street light fitting on pole, including bending the pipe to the required shape, 2 nos. 40mm x 3mm flat iron clamps with nuts, bolts, and washers, painting the flat iron with primer and finish paint, etc., as required.

Providing of 11 KV grade, 630 Amps triple pole centre post rotating manually gang operated horizontal mounting type off load isolators suitable for outdoor operation complete with hard drawn copper contact silver plated base channel assembly including coupling pipe and pad locking arrangement confirming IS:9921

Installation/ erection and testing of GOAB switch/ isolator 11 KV grade.

Supplying and erection of three piece nonlinear resistor type lightning arrestor suitable for 3 wire, 11/6.6 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.l. bolts, nuts, washers etc. as required.

Supply of 6 SWG GI wire

Erection of hexagonal type guard, as required.

Erection of cradle guard, as required.

Supplying and fixing 6.6/0.4 KV enamel coated danger board size 200x250mm with clamp on existing HT/LT structure/poles.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc. as required. (i)above 35 sq.mm and Upto 95 sq.m

Providing of Minimum one number skilled man power and one number unskilled man power for maintenance of HT (6.6 KV) and LT (440 Volt) over head line, isolator maintenance, Jumpering, patroling, and other required works in under NSC Jayant locations and NSC Jayant HT feeders.

Total impact of GST for the purpose of CTC

M/S SARCO ENGINEERING WORKS (BID ID -1192990)