REPAIR/MAINTENANCE OF 33 KV NETWORK INCLUDING ACCESSORIES IN THE AOR AGE E/M UNDER GE 864 EWS JOB NO ADDL STPP 2025-26 SER NO 05

Amount

Supply, laying, jointing, testing and commissioning of high tension (HT) XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty, earthed electric power cable, cross sectional area 300 Sqmm 3.0 core aluminium conductor 33000 Volts grade under ground cable including both side connection with cable lugs etc, laid in trenches, along poles or passing through pipes or laid under floor or through roads etc, complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning of high tension (HT) XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty, earthed electric power cable, cross sectional area 240 Sqmm 3.0 core aluminium conductor 33000 Volts grade under ground cable including both side connection with cable lugs etc, laid in trenches, along poles or passing through pipes or laid under floor or through roads etc, complete all as specified and directed.

Taking up or down defective/faulty HT underground cable 33000 Volts 300 sqmm 3.0 core from the existing trench/duct/pole etc an Re-laying the same in the trenches/duct/pole etc after rectification of defects, including meggering of cable, provn of cable lugs, glands, thimble, insulation tape and connecting up with existing control gears, panels etc as per site requirement, complete all as specified and as directed. Note:- Excavation, returning filling etc shall be measured and paid separately.

Supplying, laying or fixing, jointing and testing HT under ground electric power cable, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, (conforming to ISI-7098), ISI Marked, with aluminium conductor multi stranded, heavy duty, 11000 Volts grade (earthed),cross sectional area 95 sq. mm 3 core laid in trenches/laid under floor, roads, paths or fixed on walls /on poles/in ducts etc. including taking down old unserviceable complete all as specified and directed.

All as per ser Item No. 5 here-in-before but 120 sqmm x 3 Core

Supply, laying, jointing, testing and commissioning of high tension (HT) XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty, earthed electric power cable, cross sectional area 300 Sqmm single core aluminium conductor 33000 volts grade under ground cable including both side connection with cable lugs etc, laid in trenches, along poles or passing through pipes or laid under floor or through roads etc, complete all as specified and as directed.

Supplying, fixing, jointing and testing heat shrinkable cable end joint , outdoor type with and including jointing materials suitable for 33 KV , XLPE cable of size 300 sqmm , single core, including taking down old unserviceable complete all as specified and directed.

S&F in renewal of over current and earth fault relay suitable for CT ration 5/150 Amps for 33 KV VCB's panel, complete all as specified and directed.

S&F in renewal of old unserviceable tubing 'light grade' galvanised iron with all fittings including fixing on poles, walls etc. with flat iron clamps/bolts/nuts/washers or laid in floors/under roads 150 mm bore complete all as specified and directed.

All as per Ser Item No. 10 here-in-before but 80 mm bore

All as per Ser Item No. 10 here-in-before but 50 mm bore

Excavation in trenches n. exc. 1.5 mtr in wide and n. exc. 1.5 mtr in depth for laying of underground cable and getting out in soft/loose soil complete all as specified and directed.

Excavation in trenches n. exc. 1.5 mtr in wide and exc. 1.5 mtr but not exc 3.0mtr in depth for laying of underground cable/pole and getting out in soft/loose soil complete all as specified and directed.

Returning, filling in excavated soil in trenches including spreading, levelling, watering and well ramming in layers n. exc. 25 cm thick complete all as specified and directed.

Removing of excavated soil to a distance n. exc. 50 mtr and deposited where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

M&L of locally available river sand in trenches below and above/alround UG cable for protection, in duct including punning around cable complete all as specified and directed. Note - Only punned thickness shall be measured and paid.

Supply and laying unreinforced precast concrete cable cover on the cable in the trench , class HV, Type-I, flat size 300mm X180mmX40mm (for 11KV HT cable) complete all as specified and directed .

M&L for cement concrete 1:4:8 type D-2 (using 40 mm graded crushed stone aggregate) as in foundation and mass concrete for fixing poles etc including excavation of any strata & complete all as specified and directed.

M&L PCC 1:3:6 type C1 (using 20 mm graded crushed stone aggregate) in coping / plinth blocks for poles and the like including weathering, slightly rounded or chamfered angles and throating, as directed including necessary Steel form work and finishing the surfaces fair in forms complete all as specified and directed.

S&F of insulator fibber type heavy duty insulator for 33000 Volts grade, including 01 galvanized M.S.spindle, two galvanised iron washers and one galvanised iron nut straps etc including taking down old unserviceable one complete all as specified and directed by Engineer-in-Charge.

S&F disc type, insulator three in series, porcelain, vitreous, 145mm height and 255mm dia ball and socket type, white brown or green, single disc assembly for tension with tension clamps for conductors, working pressure 11000 volts with GI nut, bolts straps etc including taking down old unserviceable one complete all as specified and directed.

S&F pin type, fibber type heavy duty insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height, 150mm dia for 11000 Volts grade including taking down old unserviceable one complete all as specified and directed

M&L in repair/ renewal of cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of synthetic enamel paint complete all as specified and directed.

S&F air break gang operated switches/ isolator for outdoor uses vertical/horizontal mounted including 12 insulators and operating mechanism for repair/renewal of broken /worn out components and insulators etc for current rating upto 400 Amps 11000 Volts complete all as specified and as directed.

S&F break gang operated switches/isolator horizontal mounted including 9 insulators and operating mechanism for repair/renewal of broken /worn out components and insulator etc for current rating upto 400 amps horizontal type isolator with copper tube 25 mm dia 3mm thick for switch connector for 33000 Volts complete all as specified and directed.

S&F lightning arrestor for outdoor use, expulsion type complete with all fittings, transmission class, discharge capacity 11 Kilo Volts 65KA complete all as specified and directed

S&F lightning arrestor for outdoor use, expulsion type complete with all fittings, transmission class, discharge capacity 33 Kilo Volts 65KA complete all as specified and directed

S&F steel tubular swaged poles type 410 SP-55, 11.00 meter long, complete with cast iron base plate, final taper plug, bolts, nuts and screws as specified including painting with two coats of aluminium paint heat resistant type over one coat of red oxide primer and making 06 Nos bands/straps with white and black colour (30 cm wide each) synthetic enamel paint at a distance 30 cm from plinth block and numbering of poles with black bituminous synthetic enamel paint in 2.5 cm height including tarring one coat on steel surface embedded in concrete foundation including taking down old unserviceable complete all as per specified and directed.

Supply fixing, jointing, commissioning and testing of cable end jointing kit, outdoor type, suitable for 11KV 'E' grade ABC XLPE cable of size 95 sqmm 3 core and 1 bare messenger 95 Sqmm including jointing material complete all as specified and directed.

S&F jointing and testing cable end jointing kit , outdoor type with and including jointing materials suitable for 11 KV , XLPE cable of size (50 to 95) sqmm, 3 core in repair, complete all as specified and directed.

Supplying, fixing, jointing and testing cable end jointing kit, outdoor type with and including jointing materials suitable for 11 KV, XLPE cable of size (120 to 185) sqmm , 3 core as in repair, complete all as specified and directed.

Supplying, fixing, cable jointing kit for 11 KV (Earthed) grade cable for in renewal of u/s straight through heat shrinkable joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm as in repair complete all as specified and directed.

S&F cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrinkable joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm as in complete all as specified.

S&F cable jointing kit for 33 KV (Earthed) grade cable complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 300 Sqmm, for outdoor termination heat shrinkable type joint as in repair complete all as specified and directed.

All as per ser item No 35 here-in-before in for Straight through heat shrinkable type joint

M&L for renewal of damaged copper bus bars having length 5-6 mtr,25 mm dia complete all as specified and directed.

S&F in renewal of heat shrinkable insulation tubes for all the bus bars and maintaining the RYB sequence in the system complete all as specified and directed

M&L for earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm and 6mm thick buried directly in ground vertically to a depth not less than 2.5 mtr below ground level with top edge of earth plate at a depth not less than 1.5 mtr connected to and including galvanized strip 32X6 mm as earth lead up to 7.5 mtr long by means of nuts, bolts, thimbles, check nuts and washers etc made of galvanized iron connected to earthing test point all as shown in electrical plate No 5 of SSR Part-I 1991 and as specified or indicated and testing on completion including earth work and excavation in any type of soil PCC 1:3:6 type C1 chamber, pre cost slab 40mm thick in cement concrete 1:2:4 type B1 with 8 mm dia MS bars reinforced at 10 cm centre to centre both ways including funnel with watering pipe wire mesh and lugs, and test point complete all as specified and directed.

M&L for chemical earthing complete with using copper earth plate electrode 900x600x5mm thick and 32x6mm copper strip as earthing lead, buried directly in ground (earth pit not less than 3 metres deep below ground level) with top edge of the plate not less than 2.25 metres below normal ground level, connected by means of bolts, nuts, check nuts and washers of copper/ brass protected by GI pipe medium grade of 40mm dia upto test point and GI watering pipe medium grade 20mm dia with funnel and wire mesh, PCC 1:2:4 pit, PCC type B-1 using 20mm thick, CI cover with CI frame with locking arrangement, making good the distrubed surface to match the existing surface upto 2 sqm around the earth pit complete with excavation and earth work etc in any type of soil/rock and moisture retaining providing ground enhancing corrsion resistant material compound of sodium sulphate and magensium sulphate all around the earth plate upto 15cm and including testing on completion complete all as specified and directed. Note: (i) Copper strip of 32x6 mm and GI pipe of 40mm dia, maximum upto 7.5m length and testing point terminal block shall be deemed to be included in unit rate quoted by the tenderer (ii) The earth resistance will not be more than 1.0 ohms, if result is not achieved satisfactory, contractor will have to do re-earthing at separate location/ site given by the Engr-in-Charge without any extra cost to the deptt. Nothing shall be paid extra on this account. (iii) Contractor shall submit the purchase vouchers of all earthing material from the manufacturer.

M&L for renewal of damaged earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc.as required 25x4mm galvanised iron strip complete all as specified and as directed

M&L for topping up of graded course aggregate 20mm to 40 mm of nominal size in base of 2/4 pole (electrical poles) structure and electrical sub stations/Main power house 33 KV Grid etc complete all as specified and directed.

M&L boring of holes under roads pavements hardstanding by trenchless technology using ultra sound technique & necessary machine including HDPE pipe of 6 kg/sqmm of 150 mm dia suitable 0.4 Mpa working pressure all as specified & directed by Engr-in-Charge.

Repair of HT VCB 11 KV, AC 3 phase, 50 HZ, capacity 800 Amp, breaking capacity 26.3 K Amp, making capacity 33 K Amp, indoor type by dismantling all parts and renewing defected parts and reassembling including programming and setting of VCB over current, earth fault current, and testing after completion of works complete all as specified and directed. Note: Spare/parts to be renewed shall be measure and paid separately.

Supply only control wiring of HT VCB panel with suitable size of copper wire complete with colour code ferrules and tinned copper lugs.

Supply only Trip coil 110 volt DC.

Supply only Bakelite housing set.

Supply only Spout set (set of three) shower and rose contacts.

Supply only Auxiliary switch.

Supply only Limit switch.

Supply only Rotary switch.

Supply only Auxiliary Contactor.

Supply only Closing Coil 110 volts.

Supply only Tripping lever.

Supply only Charging lever.

Supply only Charging gear for VCB.

Supply only Indication lamp 110 volts (R, Y, B).

Supply only Tripping pin.

Supply only Push Button.

Supply only Charging Motor complete 220 Volts.

Supply only Vacuum interrupter, interrupting capacity 15kA to 25 kA, short circuit breaking capacity 26.3kA for 3 seconds, nominal system voltage 11KV, 50 Hz

Repairs of HT VCB / Panel 33 KV indoor/ outdoor complete with calibration of all protective devices & over hauling of all mechanical parts of VCBs comprising VCB testing complete with testing kit complete all as specified and directed. Note: Spare/parts to be renewed shall be measure and paid separately.

Supply only Control wiring of HT VCB panel with suitable size of copper wire complete with colour code ferrules and tinned copper lugs.

Supply only Trip coil 110 volt DC.

Supply only Bakelite housing set.

Supply only Spout set (set of three) shower and rose contacts.

Supply only Auxiliary switch.

Supply only Limit switch.

Supply only Rotary switch.

Supply only Auxiliary Contactor.

Supply only Closing Coil 110 volts.

Supply only Tripping lever.

Supply only Charging lever.

Supply only Charging gear for VCB.

Supply only Indication lamp 110 Volts (R, Y, B).

Supply only Tripping pin.

Supply only Push Button.

Supply only Charging Motor complete 220 Volts.

Supply only Vacuum interrupter, interrupting capacity 15kA to 25 kA, short circuit breaking capacity 26.3kA for 3 seconds, nominal system voltage 33KV, 50 Hz

S&F CT 33 KV outdoor type single phase oil cooled CT of ration 33 KV DC class 150/5/5, burden 50 VA, insulation level 70/170 KV voltage factor 1.2 Count and 1.9 for 30 second confirming to IS 3156 including taking down old unserviceable CT complete all as specified and directed.

Topping up of power transformer oil having BDV value not less than 60 complete all as specified and directed by Engr-in-charge.

S&F PT 33 KV outdoor type single phase oil cooled PT of ration 33 KV DC class 0.50-3, burden 50 VA, insulation level 70/170 KV voltage factor 1.2 Count and 1.9 for 30 second confirming to IS 3156 including taking down old unserviceable PT complete all as specified and directed.

Trimming of tree branches touching with 33/11 KV HT over head line in the entire cantonment so as to maintaining sufficient clearance and avoid fault on over head lines complete all as specified and directed. Note: T&P and manpower with suitable grass cutting machine, crane, wooden ladder provided by contractor.

S&F in repair epoxy arm for power transformer 1 MVA (OLTC), AC 3 phase, outdoor type complete all as specified and directed.

All as per ser item No 50 here-in-before but transit resistance coil-03 Nos

All as per ser item No 50 here-in-before but main moving contact-03 Nos

All as per ser item No 50 here-in-before but Arc/resistance contact-03 Nos

All as per ser item No 50 here-in-before but OLTC Auxiliary PVC insulated armoured copper cable 16 core 4 sqmm 1100 Volts

M&L for rewinding of LT side winding with copper wire/strip matching with existing size/ gauge, fixing the coil in position in core assembly and making connection as per existing pattern including providing insulation, varnish etc complete all as specified and directed by Engr-in-charge.

M&L for rewinding of HT side coil with supper enamelled Copper wire/strip matching with existing size/ gauge, fixing the coil in position in core assembly and making connection as per existing pattern including providing insulation, varnish etc complete all as specified and directed by Engr-in-Charge.

Repair/ maintenance in renewal of gas and oil operated buzchholz relay of 1 MVA transformer 33 KV including test cock and air vent cock as per ISO 9001: 2015 certified complete all as specified and directed.

Supply, installation, testing and commissioning in renewal of DO fuse 33KV with accessories fixed on cross arms structure for 1 MVA transformer complete all as specified and directed by Engr-in-charge Note: Cross arms shall be measured and paid separately.

ALCO Engineers Private Limited (BID ID -3510191)