KDL/CTRT/HT Maint. in 14,11B,11 ERS /26-27/62

Erection of metallic Rail poles upto 12 meters in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation UP TO 1.7 Meters and refilling etc as required.

Erection of steel tubular or rail poles strut in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation up to 1.9 Meters and refilling and secured with holding clamps, bolts, nuts etc. as required.

Erection of ACSR Coductor of 7/2.11 mm to 7/3.00 mm diameter including binding etc as required.

Dismantling of overhead lines comprising of copper/ aluminium overhead conductor , GI Wire, Cross Arm, Insulator etc as required. The work includes shifting of HT & LT conductors and hardwares to stockyard/ scrapyard, as required. Shifting the dismanteled conductor to the stores, including arrangement of Truck / Pickup for shifting the dismanteled conductor is in the scope of contractor.

Dismantling of Rail Pole/ Strut embedded in cement concrete foundation etc as required. Shifting of Rail Pole from stock yard/ place of dismantling to the place of erection site or other stockyard manually as required. Shifting the dismanteled Railpole / Strut to the stores, including arrangement of Truck / Pickup for shifting the dismanteled Railpole / Strut is in the scope of contractor.

Suplying and erection of two lengths of channel iron 100 mm X50 mm X 6 mm DOUBLE POLE cross arm for 3 wire upto 33 KV overhead line conductors complete with through bolts and nuts for clamping to the poles, 50 mm X 6 mm MS flat welded on one side to the channel iron and with bolts and nuts on the other side for tying the cross arm together, including drilling holes for insulator pins/ fittings including painting with primer and finish paints as required.

Suplying and erection of channel iron 100mm X 50mm X 6mm SINGLE POLE V Shape cross arm for 3 wire upto 33 KV overhead line conductors complete with 50 mm X 6 mm MS Flat iron clamps, bolts and nuts including drilling holes for insulator pins, bolts, nuts, washers etc including painting with primer and finish paints as required.

Suplying and erection of a set of Cross Bracing for upto 33 KV DOUBLE POLE structure having four members fabricated out of 65 mm X 65 mm X 6 mm to form a rectangle of minimum size 2400 mm width X 2800 mm height complete with 50 mm X 6 mm MS flat, clamps, bolts and nuts including drilling holes for insulator bolts, nuts, washers etc including painting with primer and finish paints 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/ 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 and refilling etc. 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.

Supplying and erection of single piece nonlinear resistor type lightning arrestor suitable for 3 wire, 33 KV overhead lines with rated voltage 30 KV (rms) with a nominal discharge current rating of 10 KA (station class) and complete with galvanised clamping arrangement, G.I. bolts, nuts, washers etc. as required

Supplying and erection of three piece nonlinear resistor type lightning arrestor suitable for 3 wire, 3.3 KV / 6.6 KV overhead lines with rated voltage 3 KV (rms) / 6 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.

Supply and erection of 33 KV PIN insulator complete set with large steel head, GI pin, nuts, washer as required.

Supply and erection of a set of three 11 KV disc insulator in series for 33 KV OH line with GI insulator fitting complete with galvanised strain clamps, bolts, nuts, conductor Grip as required.

Supply and erection of 11 KV PIN insulator complete set with large steel head, GI pin, nuts, washer as required.

Erection of Disc/ Pin Insulator on Pole top for HT line upto 33 KV as required. Insulators will be supplied by NMDC.

Providing and erection of GI tape 20 X 3 mm clamping along the poles or on ground for connecting LA, Lightening finile etc including supply of clamps and binding etc as required

Providing and erection of GI wire 6 SWG for continuous earth wire and connecting eatrh wire as required including binding with required material etc as required

Providing and erection of GI wire 6 SWG and making mesh for guard wire below HT OH line for road crossing including binding with required material etc as required

Supplying of channel iron 75 mm X 40 mm X 6 mm (7.14 kg per metre) cross arm for guard wire 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, washers etc and painting with primer and finish paint as required.

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

Earthing with G.I. earth plate 600 mm X 600 mm X 6 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

Providing and fixing H.T. Danger notice plate / feeder Name, of 250mm X 200 mm made of mild steel, atleast 2 mm thick and vitreous enameled white on both sides, with inscription in single red colour on front side as required. The work includes fixing of danger plate in equal interval with 35 mm X 35 mm X 5 mm angle iron, 100 cm long and fixing the same in ground / on pole/ Railpole, complete as required.

Seperate Trench : Laying of one no. PVC / XLPE Insulated PVC sheathed armoured power cable of 33 KV grade of size 3/4 Core X 120 sq. mm. direct in ground at a depth of one metre in average, including excavation, sand cushioning, protective covering with red brick and refilling the trench etc as required. The work includes making end termination by providing lugs etc. and connection as required. The Sucessful Bidder has to obtain DDMS approval for the Cables laying work and the associated structure.

Same Trench :Laying of one no. PVC / XLPE Insulated PVC sheathed armoured power cable of 33 KV grade of size 3/ 4 core X 120 sq. mm. direct on bund in mine or existing Metal Pipe/ trench etc as required. or in one tier horizontal formation including excavation, sand cushioning, protective covering and refilling the trench etc as requiredCable will be supplied by NMDC. The work includes making end termination by providing lugs etc and connection as required. The Sucessful Bidder has to obtain DDMS approval for the Cables laying work and the associated structure.

Seperate Trench: Laying of one no PVC/ XLPE insulated PVC sheathed armoured Aluminium cables upto 3/4 core X 185 Sq mm of 11 KV grade direct in ground at a depth of one meter in average, including excavation, sand cushioning, protective covering with red brick and refilling the trench as required. The work includes making end termination with providing of lugs etc and connection as required. The Sucessful Bidder has to obtain DDMS approval for the Cables laying work and the associated structure.

Same Trench : Laying of one no. PVC / XLPE Insulated PVC sheathed armoured power cable upto 11 KV grade of size upto 3/ 4 core X 185 sq. mm. direct on bund in mine or existing Metal Pipe/ trench for undergrounding etc as required. or in one tier horizontal formation including excavation, sand cushioning, protective covering and refilling the trench etc as requiredCable will be supplied by NMDC. The work includes making end termination by providing lugs etc and connection as required. The Sucessful Bidder has to obtain DDMS approval for the Cables laying work and the associated structure.

Providing, laying and fixing of 150 mm dia GI Pipe (medium class) in ground complete with GI fittings including trenching (75 cm deep) and refilling etc as required

Erection of metallic poles / steel tubular poles upto 10 meter length in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation up to 1.5 meters and refilling etc.

Dismantling of pole/ street light standard/ strut ebmedded in cement concrete foundation and shifting to stock yard/ re-erection location, as required. Shifting the dismanteled poles to the stores, including arrangement of Truck / Pickup for shifting the dismanteled poles is in the scope of contractor.

Supplying and making indoor cable end termination with heat shrinkable jointing kit with all accessories including lugs suitable for 3 or 4 core Core X 70 to 95 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making indoor cable end termination with heat shrinkable jointing kit with all accessories including lugs suitable for 3 or 4 Core X 120 to 150 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making indoor cable end termination with heat shrinkable jointing kit with all accessories including lugs suitable for 3 Core X 185 to 240 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making Outdoor cable end termination with heat shrinkable jointing kit with all accessories including lugs suitable for 3 or 4 core Core X 70 to 95 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making Outdoor cable end termination with heat shrinkable jointing kit with all accessories including lugs suitable for 3 or 4 Core X 120 to 150 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making Outdoor cable end termination with heat shrinkable jointing kit with all accessories including lugs suitable for 3 Core X 185 to 240 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making straight through cable jointing with heat shrinkable jointing kit with all accessories including lugs suitable for 3 or 4 core Core X 70 to 95 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making straight through cable jointing with heat shrinkable jointing kit with all accessories including lugs suitable for 3 or 4 Core X 120 to 150 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making straight through cable jointing with heat shrinkable jointing kit with all accessories including lugs suitable for 3 Core X 185 to 240 sq. mm. XLPE insulated, PVC sheathed, armoured Cables of 11 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making outdoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for 3 Core X 120 sq. mm. XLPE insulated, PVC sheathed, armoured aluminium cables of 33 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and making straight through cable jointing with heat shrinkable jointing kit complete with all accessories including lugs suitable for 3 Core X 120 sq. mm. XLPE insulated, PVC sheathed, armoured aluminium cables of 33 KV grade, complete as required. The work includes termination of cables with cadmium coated nuts and bolts etc. as required.

Supplying and installing of 300 X 62.5X2.0 mm of lenght 2.5 meters each, perforated Hot Dipped Galvanised Iron cable tray "bends" (galvanisation not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. as required. The firm has to supply the required angled / turned / sloppy cable tray where ever required as per the site conditiones, complete as required

Construction of Cable trench and flooring in the front and back side of the trench for installation of RMU.

Supply and erection of 400 Amp 11 KV Double Break AB Switch manually operated, complete with mounting structure, with self wiping contacts, Type tested as per IS , simultaneous operation of three poles by individual/ group with low operating torque, Complete with all mounting accessories. The firm has to submit Type test report

Supply and erection of 400 Amp 33 KV Double Break AB Switch manually operated, complete with mounting structure, with self wiping contacts, Type tested as per IS , simultaneous operation of three poles by individual/ group with low operating torque, Complete with all mounting accessories. The firm has to submit the type test report