REPAIR/REPLACEMENT OF LT UNDERGROUND CABLE AND OTHER CONNECTED SERVICES AT 213 TRANSIT CAMP UNDER GE NAGROTA

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for electric poles, Stay foundation and under ground electric power cables and getting out in soft/loose soil, complete all as specified and directed.

Returning, filling including spreading, levelling, watering and ramming in layers not exceeding 25cm in soft/loose soil, complete all as specified and directed.

Removing excavated surplus soft/loose soil to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point, complete all as specified and directed.

Supply,laying and spreading in layers dry clean river sand for cable cushioning with a layer of sand 8 cm depth before laying & 15 cm depth after laying the cable punned down to a depth of 10 cm above the top of the cable, complete all as specified and directed.

Supply & lay burnt bricks sub class 'B' in trenches for cable protection, complete all as specified and directed by Engineer-in-Charge..

S&F for Laying connecting and testing of 1100 volts grade LT XLPE insulated screened, PVC bedded galvanised steel strip or wire armoured, heavy duty eletric power cable with aluminium conductor of size and type complete all as specified and directed including dismantling and taking down existing old LT cable of any size and type from pole/duct/trench/floor/wall/pipe etc with cable end boxes, glands, bricks etc with necessary disconnection work and keeping in safe custody for the following size of cables:- Note:- (i) Excavation and earth work, sand cushioning, bricks & cable protection pipe will be measured & paid under appropriate items of Schedule 'A'

XLPE cable of size 4 core 10 Sqmm

XLPE cable of size 4 core 16 Sqmm

XLPE cable of size 4 core 25 Sqmm

XLPE cable of size 3.5 core 35 Sqmm

XLPE cable of size 3.5 core 50 Sqmm

XLPE cable of size 3.5 core 70 Sqmm

XLPE cable of size 3.5 core 95 Sqmm

XLPE cable of size 3.5 core 120 Sqmm

Supply & Fix Service cable /wire 1100 V flat twin core aluminium stranded conductor of size 6 Sqmm, complete all as specified and directed.

Supply & Fix Service cable /wire 1100 V flat twin core aluminium stranded conductor of size 10 Sqmm, complete all as specified and directed.

Material and labour for 80 mm dia, light grade, GI tubing with all fittings for cable protection laid in trenches, fixed on wall/pole with necessary fixing arrangements including taking down the old pipe, complete all as specified and directed.

Material and labour for 50 mm dia, light grade, GI tubing with all fittings for cable protection laid in trenches, fixed on wall/pole with necessary fixing arrangements including taking down the old pipe, complete all as specified and directed.

Material and labour for 40 mm dia, light grade, GI tubing with all fittings for cable protection laid in trenches, fixed on wall/pole with necessary fixing arrangements including taking down the old pipe, complete all as specified and directed.

Material & Labour for cross arms, bracings, supports, clamps and back plate fabricated from structural steel sections including nuts, bolts,washers,welding,bending,drilling of holes for bolts in any shape or size as indicated and applying two coats of aluminium paint over a coat of red oxide primer including dismantling of existing mild steel cross arm with clamps from LT poles of any height, place and position, complete all as specified and directed.

Supply and fix and draw ACSR Weasel/Squirrelconductor of size 06 strands of aluminium of 2.59/2.11 mm dia and 1 strand of steel of 2.59/2.11 mm dia on LT poles, bringing the sag within limit, fixing on Insulator/Cross arms by means of necessary binding with 16 SWG aluminium binding wire and providing alkathene pipe of approved quality for jumpers, reconnecting the service connections after removing the carbon material including dismantling of old ACSR conductor of any size & type from LT poles at any height, position and place, complete all as specified and directed by Engr-in-Charge.

Supply and fix HT Pin type insulator, porcelain, vitreous, white, brown or green insulator including one galvanised iron mild steel spindle two galvanised iron washers and one galvanised iron nuts, 150 mm height, 150 mm dia for conductor 11000 volts grade including dismantling of existing LT pin type insulator of any height, place, and position, complete all as specified and directed.

All as per item No. 22 above but LT Pin type insulators of size 100mm height, 65mm dia dia suitable for conductor 1100 volts grade.

Supply and fix HT disc type insulators, porcelain, vitreous, brown, white or green 145mm high and 255mm dia ball & socket type, single disc assembly for tension with tension clamps for conductor of working pressure of 11000 volt grade including dismantling of existing HT disc type insulator from HT poles of any height place and position, complete all as specified and directed.

Supply and fix LT shackle type insulators, vitreous, porcelain brown, white or green insulators for working pressure of 1100 volts grade of 90 mm dia, 75mm height including galvanised mild steel strips 31 x 3 mm size and 12 mm dia bolts, nuts, and washers on existing cross arms including dismantling of existing LT shackle type insulator of any height place and position, complete all as specified and directed.

Material & Labour for stay assembly comprising of stay bow (4000 x 14mm), stay rod 215 cm long and 20 mm dia with nuts, stay plate 300 x 300 x 6 mm thick and 2 nos of thimble complete as shown in electric plate no 1 of SSR part-1 connected to loop type insulator, including dismantling old unserviceable stay assembly complete including loop insulator wire etc from LT poles, complete all as specified and directed. Note:- Earthwork, excavation, concrete and loop type insulator shall be measured and paid separately under relevant items of Sch 'A'.

Supply and fix loop type insulators, vitreous, porcelain brown, white or green insulators for working pressure of 1100 volts grade of large size with over all dimensions 90 x 140 mm clearance of hole 25.50 mm including dismantling of existing LT loop type insulator of any height place and position, complete all as specified and directed.

S&F Galvanised stay wire stranded of size 7/4 mm including necessary binding, strengthening, complete all as specified and directed.

Material and labour for cement concrete 1:4:8, type D2 (using 40mm graded crushed stone aggregate) for foundation of poles/stays, complete all as specified and directed.

Material and labour for PCC (1:2:4) type B-2 (using 40 mm graded crushed stone aggregate for making good the road cutting, complete all as specified and directed.

Material and labour for lightning arrester expulsion type high tension complete with all fittings transmission class discharge capacity 65 kilo amps suitable for 11 KV including necessary connections with Over head lines & earthing fixed on 2/4 pole structure, including dismantling the old unserviceable one, complete all as specified and directed.

Material and labour for switch Air break gang operated Triple pole, mechanically operated mounted on insulator & steel frame with operating mechanisum worked from ground level for current rating upto 200 Amps 11000 Volts all with male & female contacts, post insulator 15 Nos, operating rod, handle etc and renewal of jumpers with heavy duty alkathene pipe cable connections including dismantling of old unserviceable switches vertical/horizontal mounted, including insulator & operating mechanisum for repair/replacement of broken/worn out components and insulators etc, complete all as specified and directed.

Material and labour for drop out fuse assembly expulsion type single pole for 11 KV, 100 amps capacity complete consisting of galvanised steel base plate fuse carrying brackets channels with post insulator, fuse carrier fiber glass tube with fuse element complete including dismantling the old unserviceable one, complete all as specified and directed.

Repair, maintenance & overhauling of existing 11 KV Air Break GOD switch of any type & size including cleaning of insulator,replacing male & female contacts (where as required),greasing & oiling to operating mechanisum,setting of contacts,renewals of connections etc all for smooth fuctioning of Air Break GOD switch, complete all as directed by Engineer- in- charge

Restringing of existing LT over head line of ACSR conductor after opening of binding wire from insulator & bringing the sag within limit rebinding the same with insulator with 16 SWG aluminium wire all including renewal of jumpers with providing alkathene pipe of approved quality of jumpers, reconnecting the service connection after removing the carbon material complete all as directed by Engineer in Charge.

Material and labour for earthing complete with galvanised steel earth plate electrode 60cm x 60cm x 6mm thick buried directly in ground (earth pit not less than 2.25M deep below natural ground level ) with top edge of plate not less than 1.5M below normal ground level, surrounded from all sides alternate packed layer of charcoal dust and common salt and electrode connected with galvanised iron earth lead wire 4mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 of SSR part I including necessary earth work in any type of strata, foundation of pit and wall using PCC 1:3:6 type C1 using 20mm graded crushed stone aggregate 40 mm thick pit cover slab using RCC 1:2:4 type B0 using 12.50 mm graded crushed stone aggregate with 6 mm dia MS bar @ 100 mm C/C both ways including GI medium grade 20 mm dia pipe for watering including funnel with wire mesh and 15 mm bore GI light grade pipe for earth lead wire protection upto 7.5 mtr complete all as directed including testing complete on completion.

-Ditto- all as per srl item No. 36 above but using 32x6 mm GI earth strip as a earth lead & 40 mm dia light grade GI protection pipe complete all as specified & directed Note for item No. 36 & 37 (i) GI wire/strip or protection pipe 15mm/40mm dia upto 7.5 RM includes the quoted rate. (ii) The quantity beyond the 7.5 RM shall be measured & paid separetely

M&L for earth continuity conductor or main earthing lead 4 mm dia GI or steel wire fixed to wall on batten or recessed or buried in ground or drawn in conduit/pipe all as required at site.

Supply & fixing for GI strip 32x6mm on wall/batten or recessed or buried in ground all as directed by Engineer-in-Charge.

M&L for scraping/rubbing of old painted surfaces of (RCC) concrete poles of any description and length not exc 9 mtr above ground level erected in vertical position in HT OH line & painting with two coats of cement based paint 7.5 mtr from top of the pole onward & remaining with black & white paint strip in 30 cm width alternatively upto ground level & numbering the pole with white paint on black paint base 20 cm dia circular/square shape complete all as specified and directed by Engineer-in-Charge.

M&L for scraping/rubbing of old painted surfaces of (RCC) concrete poles of any description and length not exc 7.5 mtr above ground level erected in vertical position in LT OH line & painting with two coats of cement based paint 6 mtr from top of the pole onward & remaining with black & white paint strip in 30 cm width alternatively upto ground level & numbering the pole with white paint on black paint base 20 cm dia circular/square shape complete all as specified and directed by Engineer-in-Charge.

M&L for Preparing old painted surfaces of steel tubular swaged pole of any description and length not exc 7.5 mtr above ground level erected in vertical position in LT OH line including cross arms of angle iron/ channel section clamps brackets etc with one coat of aluminium paint 6 mtr from top of the pole onward & remaining with black & white paint strip in 30 cm width alternatively upto ground level & numbering the pole with white paint on black paint base 20 cm dia circular/square shape complete all as specified and directed by Engineer-in-Charge.

M&L for spreading coarse aggregate of 20 mm size upto 10 mm above the ground surface below the HT 2 pole, 4 pole structure including leveling & clearing ground surface by cutting shrubs,vegetation,grass, bushes,weeds & trees upto 30 Cm girth,sweeping & lying the same to distance not exceeding 50 M away from the 2 pole & 4 pole structure, all as specified & directed by Engr-in-Charge. Note :- Cutting & other neccessary material shall be provided by the contractor on his own arrangement

Supply & Fixing in replacement MCCB 4 pole 63 amps 50Hz 415 volts of rupturing capacity 16 KA

Supply & Fixing in replacement MCCB 4 pole 125 amps 50Hz 415 volts adjustable type of rupturing capacity 16 KA

Supply & Fixing in replacement MCCB 4 pole 160 amps 50Hz 415 volts adjustable type of rupturing capacity 36KA

Supply & Fixing in replacement MCCB 4 pole 200 amps 50Hz 415 volts adjustable type of rupturing capacity 36KA

Supply & Fixing in replacement MCCB 4 pole 250 amps 50Hz 415 volts adjustable type of rupturing capacity 36KA

Supply & Fixing in replacement MCCB 4 pole 400 amps 50Hz 415 volts adjustable type of rupturing capacity 36KA

S&F On load change over switch modular construction 415 volts TPN in sheet metal enclosure 4 pole of capacity 200 amps

S&F On load change over switch modular construction 415 volts TPN in sheet metal enclosure 4 pole of capacity 160 amps

S&F On load change over switch modular construction 415 volts TPN in sheet metal enclosure 4 pole of capacity 100 amps

Taking down transformer mounted on two/four pole structure or on platform / indoor floor mounted carefully from their position after removing electrical connection, earthing leads etc, for executing necessary comprehensive preventive maintemance as well repairs necessiated, including to and fro transporting to MES store yard/ contractor wkshop and refixing after execution of maint/repair to their original position or to other location as directed of capacity 40 KVA to 250 KVA.

Labour , tools & plants only for opening the top cover of transformer out/in door type, step down 11 KV/0.415 KV of cap 40 KVA to 250 KVA, lifting of core and winding, draining out transformer oil into container and keep aside for treatment and reuse, carry out strip inspection of core and windings for comprehensive routine, preventive maintenance and any other necessary repairs required to be executed. Refitting the core & windings after carry necessary routine maintenance / preventive maintenance or repairs so ordered making all electrical connections, providing sundry items i.e bolts, nuts & washers, reassembling the transformer complete, including testing and commissioning to the entire satisfaction of the Engineer-in-Charge, complete all as specified and as directed.

Cork sheet 6 mm thick gasket packing to transformers top cover of various capacity upto 160 KVA outdoor/ indoor.

Filtration, dehydration of transformer oil as drained out from transformer vide srl item No. 51 here-in-above to make the oil fit for reuse by improving its di-electric strength not less than 40 KV, below 40 KV dielectric strength oil shall be replaced with new oil (new oil for topping / or for replacement shall be measured and paid separately under appropriate item of Sch 'A') here-in-after.

Supply, treating (dehydrating), filling new transformer oil in transformers for topping up levels or for replacement of unfit oil. New oil should have dielectric strength not less than 60 KV and shall conform to IS 335.

Taking out old breathers from transformer, supplying and fixing new breather dully filled with activated agent i.e silica gel for transformer of cap 40 KVA to 250 KVA

Painting to transformer old painted surface of steel after cleaning, scraping and preparing and filling cavities and providing one coat of synthetic enameled grey paint with spray gun process to transformer of Cap 40 to 250 KVA indoor/outdoor type

10 mm thick Synthetic insutated mat suitable for 11000 Volt grade (ISI Marked) of size 2mx1mx10mm complete all as specified and directed.

Disconnecting and removing to workshop including opening for repair automatic voltage stabilizer for automatic operation air cooled servo controlled type input voltage 260-440V and output voltage 420 V capacity 50 KVA to 160 KVA complete all as specified and as directed Note : Replacement of the parts if any found worn out/defective shall be measured and paid separately.

Dismantling and rewinding of dimmer coil with super enameled copper winding wire including varnishing tapping and insulating material to get same capacity of 50 KVA to 160 KVA

Replacement of electronic circuit plate complete with DC transformers (PCB cold) having capacity of 50 KVA to 160 KVA

Dismantling of old servo motor and supply and fix new servo motor of existing size and capacity complete all as specified and directed.

Dismantling of old carbon brush with carbon holder including S & F new one complete

Replacement of brass studs fixed for input and output of stabilizer with brass nuts for upto 160 KVA capacity

Painting to voltage stabilizer old painted surface of steel after cleaning scrapping and preparing and filling cavities and providing two coat of synthetic enameled cream paint with spray gun process to voltage stabilizer of capacity upto 160 KVA

Kalsi Engineers and contractors

R K BUILDERS

Jiwan Singh

Sarbat Construction Co

M/S MANJIT SINGH AND SONS