GE AF/AMB-48/2021-22 REPAIRS / MAINTENANCE / SERVICING / REPLACEMENT OF LT PANELS, FEEDER PILLAR BOXES, MCCB AND CONNECTED ITEMS IN TECHNICAL AREA AT AF STATION AMBALA UNDER GE (AF) AMBALA

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundations, manholes, etc. or for laying cables/pipes, erecting poles, etc. not exceeding 10sqm on plan and getting out in soft / loose soil complete all as specified and as directeddisposing off complete all as specified and as directed

Returning, filling in, including, spreading, leveling, watering and well ramming in layers not exceeding 25cm deep as in any type of soil complete all as specified and as directed

Removing excavated materials to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point in any type of soil including spreading in low lying area and leveling complete all as specified and as directed

Supply and laying burnt bricks of sub-class 'B' designation 75 laid in trenches for cable protection complete all as specified and as directed

M&L for fine dry river sand cushioning by laying 8cm thick layer below the cable for making soft bed and 15cm above the cable and then punning down to its consolidated thickness of 18cm after the cable is laid all as specified in SSR Part-I complete all as specified and as directed Note: Only punned thickness of sand shall be considered for measurement purposes

M&L for plain cement concrete 1:3:6 (type C-2) using 40mm graded stone aggregate as in coping, bases of poles, post holes, etc. complete all as specified and as directed

Supply, laying, jointing, connecting and testing XLPE insulated, screened, PVC sheathed cable 1100V grade, screwed PVC bedded, armoured electric power cable, heavy duty multi-stranded aluminium conductor laid in trenches / fixed on walls/poles, passing through pipes, etc. complete all as specified and as directed of the following sizes: Note: Excavation and earthwork will be measured and paid separately under respective item herein

3.5 core 240sqmm

3.5 core 150sqmm

3.5 core 120sqmm

3.5 core 95sqmm

3.5 core 70sqmm

3.5 core 50sqmm

3.5 core 35sqmm

4 core 16sqmm

Supplying, fixing / laying steel water tubing, light grade, galvanised with screwed and socketed joints, in any length, including supply and fixing all fittings, ISI marked conforming to IS -1239 and fixed to walls or laid in floors / trenches required for protection of electric clables complete all as specified and as directed for the following bores:

80mm bore

50mm bore

40mm bore

M&L for making bore into roads / paths / hard standing, concrete / tiled / bituminous, etc. for insertion of GI protection / passing through pipes, at any length at any location including making good the disturbed surfaces after laying of pipes complete all as specified and as directed of the following bores:

80mm bore

50mm bore

M&L for carrying out tests for locating faults in LT cable of any size with the help of fault locator machines, etc. at any location complete all as specified and as directed

M&L for digging up loop of 3.5 core aluminium armoured LT XLPE cable at any location for finding faults and changing the joints and repairing as required and relaying of cable ncluding connecting up and testing complete all as specified and as directed Notes: (i) Rate shall be inclusive of all excavation, earthwork in any type of soil and making good the disturbed surfaces (ii) Cable joints will be measured and paid separately under respective items herein (iii) Testing to ensure funstionality of the line after repairs shall be done as required. Rate shall be deemed to be included in quoted rate

M&L for taking out faulty underground LT/HT XLPE cable at any location from trenches / poles / pipes / floors / walls, etc. for finding faults and rectifying the same and repairing as required and relaying of cable including connecting up and testing complete all as specified and as directed Note: Excavation, earthwork will be measured and paid separately under respective items herein

M&L for cable jointing kit for 1.1kV grade cable for end termination heat shrink type joint, outdoor / indoor type with jointing material and accessories suitable for 4.0 core, 16/25mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV grade cable for end termination heat shrink type joint, outdoor type with jointing material and accessories suitable for 3.5 core, 35/50mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV grade cable for end termination heat shrink type joint, outdoor type with jointing material and accessories suitable for 3.5 core, 70 to 150mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV grade cable for end termination heat shrink type joint, indoor/outdoor type with jointing material and accessories suitable for 3.5 core, 185 to 300mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV grade cable for straight through heat shrink type joint, indoor/outdoor type with jointing material and accessories suitable for 4 core, 25 to 50mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV grade cable for straight through heat shrink type joint, indoor/outdoor type with jointing material and accessories suitable for 3.5 core, 70 to 150mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV grade cable for straight through heat shrink type joint, indoor/outdoor type with jointing material and accessories suitable for 3.5 core, 185 to 300mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

Spplying and laying / fixing in position synthetic rubber insulated mat of size 2.0x1.0m, 12mm thick conforming to IS: 15652-2006 complete all as specified and as directed

S&F in position LED signage board of size 2.0x1.0m and 150mm thick made out of aluminium sheet 1.6mm thick duly supported on MS angle iron frame of size 40x5mm all round including all necessary fixing arrangements and PCC bedding, write ups / illustration as required complete all as specified and as directed

S&F in repairs automatic street light switch three phase using nature switch for automatic switching of street lights, 8kW equally distributed 25k W equally distributed over 3 phase (7kW/Phase) based on LUX level of natural light, infrared sensor based on nature switch along with contactor 60A/phase, MCB SP for input and output 63A, wiring for main load with 3 core 16sqmm copper cable duly fixed to pole/wall, mounted on enclosure made out of rust proof, electric shock proof, termite proof and FR grade SMC junction box of protection class IP 54 fixed at any location complete all as specified and as directed

M&L for disconnecting from mains and taking down old / unserviceable sheet metal enclosures of any size at any location and disposing off complete all as specified and as directed

S&F sheet metal enclosures fabricated out of 2mm thick MS sheet duly powder coated suitable for mounting and housing 100 to 200A 4 pole MCCB including thimbles, lugs, glands, etc. and connecting up complete all as specified and as directed

S&F sheet metal enclosures fabricated out of 2mm thick MS sheet duly powder coated suitable for mounting and housing 250 to 400A 4 pole MCCB including thimbles, lugs, glands, etc. and connecting up complete all as specified and as directed

S&F bus bar chamber of size 600x600x450mm suitable of 3 phase 433V outdoor type fabricated out of 3.15mm thick MS sheet with 400A rated aluminium busbar 4Nos., PVC sleeves (coloured red, yellow, blue and black) with suitable locking arrangments and four legged angle iron stand made of angle iron of size 40x40x6mm duly grouted in and including foundation in PCC 1:2:4 type C1 using 20mm graded stone aggregates alongwith all necesary cable connections, lugs and cable glands including applying two coats of synthetic enamel paint (of approved tint) over a coat of red oxide zinc chrome primer complete all as specified and as directed

S&F bus bar chamber of size 600x600x450mm suitable of 3 phase 433V outdoor type fabricated out of 3.15mm thick MS sheet with 200A rated aluminium busbar 4Nos., PVC sleeves (coloured red, yellow, blue and black) with suitable locking arrangments and four legged angle iron stand made of angle iron of size 40x40x6mm duly grouted in and including foundation in PCC 1:2:4 type C1 using 20mm graded stone aggregates alongwith all necesary cable connections, lugs and cable glands including applying two coats of synthetic enamel paint (of approved tint) over a coat of red oxide zinc chrome primer complete all as specified and as directed

S&F bus bar chamber of size 300x300x150mm suitable of 3 phase 433V outdoor type fabricated out of 3.15mm thick MS sheet with 100A rated aluminium busbar 4Nos., PVC sleeves (coloured red, yellow, blue and black) with suitable locking arrangments fixed duly on walls, etc. alongwith all necesary cable connections, lugs and cable glands including applying two coats of synthetic enamel paint (of approved tint) over a coat of red oxide zinc chrome primer complete all as specified and as directed

M&L for carrying out repairs / maintenance of existing LT panels at any position / location and of any size, by disconnecting connections, etc. cleaning the entire compartments, arranging cables in proper manner, changing burnt lugs by providing new lugs, thimbles, etc., taping with insulated tapes of all naked cable joints/ends, preparation of old treated surfaces and applying one coat of grey synthetic enamel paint including all necessary welding works to reinstate broken / damaged doors, hinges, supports, legs, etc. and cleaning the surrounding upto 2m all around complete all as specified and as directed

M&L for disconnecting from mains and taking down old / unserviceable LT panels/ feeder pillar boxes / bus bar chambers of any size at any location including breaking down old PCC platform, etc. and disposing off complete all as specified and as directed

Supply, installation, testing & commissioning of powder coated compartmentalized LT feeder pillar box / panel, of suitable size, symetrical with overload, short circuit and earth fault protection, having bus bar chambers with rated aluminium bus bar, duly insulated with coloured PVC sleeves as per standard code, rigidly mounted on bakelite / DMC insulators (square / round with good insulation resistance), fabricated out of 3.15mm thick CRCA sheet steel, totally enclosed, dust proof, weather proof, vermin proof, double door with suitable locking arrangements and suitable for operation on 415V, 50Hz, 3 phase, 4 wire AC supply with gland plates, cable glands, lifting hooks, ventilating louvers, bus bars, inter connections, earthing, labeling electrical interlocking, suitable for termination of cables, mounted/fixed on and including MS angle iron stand /frame 40cm height from FFL, fabricated out of 50x50x6mm thick MS angle legs (4Nos.) duly grouted in ground with PCC 1:3:6 type C1 painting all exposed metal surfaces with two coats of synthetic enamel paint (of approved tint) over a coat of red oxide zinc chrome primer with, accommodating and including the under mentioned and connecting up complete all as specified and as directed

Panel with the following: (i) 1000A rated aluminium bus bar 04 Nos (three phase & Neutral) (ii) MCCB three phase adjustable type with thermal magnetic release 630A 50kA four pole - 1No. (iii) MCCB three phase adjustable type with thermal magnetic release 400A 35kA four pole - 2Nos. (iv) MCCB three phase adjustable type with thermal magnetic release 250A 25kA four pole - 2Nos. (v) Spare chamber - 01No. (vi) Digital ampere meter and voltmeter

Panel with the following: (i) 600A rated aluminium bus bar 04 Nos (three phase & Neutral) (ii) MCCB three phase adjustable type with thermal magnetic release 400A 35kA four pole - 1No. (iii) MCCB three phase adjustable type with thermal magnetic release 200A 35kA four pole - 2Nos. (iv) MCCB three phase adjustable type with thermal magnetic release 100A 16kA four pole - 2Nos. (v) Spare chamber - 01No. (vi) Digital ampere meter and voltmeter

Panel with the following: (i) 400A rated aluminium bus bar 04 Nos (three phase & Neutral) (ii) MCCB three phase adjustable type with thermal magnetic release 250A 35kA four pole - 1No. (iii) MCCB three phase adjustable type with thermal magnetic release 125A 25kA four pole - 3Nos. (iv) Digital ampere meter and voltmeter

Panel with the following: (i) 600A rated aluminium bus bar (ii) MCCB three phase adjustable type with thermal magnetic release 400A 35kA four pole - 1No. (iii) MCCB three phase adjustable type with thermal magnetic release 160A 25kA four pole - 2Nos. (iv) MCCB three phase adjustable type with thermal magnetic release 125A 25kA four pole - 3Nos. (v) Digital ampere meter and voltmeter

S&F in repairs off load change over switch 415V 250A 4 Pole with side handle operation in sheet metal enclosure as per exising make and size complete all as specified and as directed

S&F in repairs off load change over switch 415V 400A 4 Pole with side handle operation in sheet metal enclosure as per exising make and size complete all as specified and as directed

Supplying, fixing, connecting, testing and commissioning MCCB 100A, four pole, 16kA, 415V, 50Hz rating with adjustable thermal and magnetic setting including taking out old unserviceable MCCB and disposing off complete all as specified and directed Note: All MCCB should have suitable rating of separator and extension link.

Supplying, fixing, connecting, testing and commissioning MCCB 125A, four pole, 16kA, 415V, 50Hz rating with adjustable thermal and magnetic setting including taking out old unserviceable MCCB and disposing off complete all as specified and directed Note: All MCCB should have suitable rating of separator and extension link.

Supplying, fixing, connecting, testing and commissioning MCCB 160A, four pole, 25kA, 415V, 50Hz rating with adjustable thermal and magnetic setting including taking out old unserviceable MCCB and disposing off complete all as specified and directed Note: All MCCB should have suitable rating of separator and extension link.

Supplying, fixing, connecting, testing and commissioning MCCB 200A, four pole, 25kA, 415V, 50Hz rating with adjustable thermal and magnetic setting including taking out old unserviceable MCCB and disposing off complete all as specified and directed Note: All MCCB should have suitable rating of separator and extension link.

Supplying, fixing, connecting, testing and commissioning MCCB 250A, four pole, 25kA, 415V, 50Hz rating with adjustable thermal and magnetic setting including taking out old unserviceable MCCB and disposing off complete all as specified and directed Note: All MCCB should have suitable rating of separator and extension link.

Supplying, fixing, connecting, testing and commissioning MCCB 400A, four pole, 35kA, 415V, 50Hz rating with adjustable thermal and magnetic setting including taking out old unserviceable MCCB and disposing off complete all as specified and directed Note: All MCCB should have suitable rating of separator and extension link.

Supplying, fixing, connecting, testing and commissioning MCCB 630A, four pole, 50kA, 415V, 50Hz rating with adjustable thermal and magnetic setting including taking out old unserviceable MCCB and disposing off complete all as specified and directed Note: All MCCB should have suitable rating of separator and extension link.

S&F 10mm thick CI cover with handle, duly hinged in mild steel angle iron frame of size 300x300x300mm made out of MS angle iron of size 40x40x6mm thick duly fixed to existing earthing pits and entirely painted with two coats of synthetic enamel paint over one coat of red oxide zinc chrome primer including dismantling and taking down old pit cover and disposing off complete all as specified and as directed

M&L for test point terminal block made of gun metal phosphorus bronze, size 75x75x25mm, drilled and screwed with sheet metal enclosure of size 100x100x100mm fabricated out of steel sheet not less than 1.6mm thick and including 3Nos. 8mm dia 25mm long hexagonal head screws, taking down and disposing off old unserviceable block complete all as specified and as directed

S&F in repairs air termination, single pointed aluminium rod 12mm dia and 300mm long including suitable insulated base plate and connecting up complete all as specified and as directed

M&L for brazing / welding works on joints of any type of earth strip complete all as specified and as directed

S&F in repairs identifier legend plate of GI of size 300x200x1.6mm mounted on 25mm dia GI pipe of 0.9m length including cutting to required shape/size, welding, marking, necessary painting and writing the date, type of earth pit and resistance value, etc. having approved font type and size complete all as specified and as directed

M&L for preventive maintenance to functional earthing GI/Cu any type, by mechanically checking earth resistance value and bringing up the same to required state by developing and adding new chemical mixture of sodium carbonate, magnesium sulphate, common salt, charcoal, etc. and ensuring required earth resistance value on completion including all necessary excavation/earthwork complete all as specified and as directed Notes: (i) The earth result shall not be less than 5 Ohm and if not attained after maintenance the same shall be achieved without any extra cost to the Department (ii) Requisite test results shall be submitted for payment purposes

M&L for preventive maintenance to functional chemical earthing of any type, by mechanically checking earth resistance value and bringing up the same to required state by developing and adding new chemical mixture of sodium carbonate, magnesium sulphate, common salt, charcoal, etc. and ensuring required earth resistance value on completion including all necessary excavation/earthwork complete all as specified and as directed Notes: (i) The earth result shall not be less than 1 Ohm and if not attained after maintenance the same shall be achieved without ny extra cost to the Department (ii) Requisite test result shall be submitted for payment purposes

S&F in repairs copper strip of size 20x3mm with saddles and fixing screws, FRP insulators, etc. for roof conductors, down conductors and wall conductors above the ground, etc. brazed/welded at each joint complete all as specified and as directed

S&F in repairs GI strip of size 32x6mm with saddles and fixing screws, FRP insulators, etc. for roof conductors, down conductors and wall conductors above the ground, etc. brazed/welded at each joint complete all as specified and as directed

S&F in repairs aluminium strip of size 25x3mm with saddles and fixing screws, FRP insulators, etc. for roof conductors, down conductors and wall conductors above the ground, etc. brazed/welded at each joint complete all as specified and as directed

S&F PVC / porcelain insulators fixed on walls, etc. complete all as specified and as directed

M&L for preparation of surfaces viz. scrapping old paints, smoothening, etc. and painting to concrete surfaces of earthing pit walls, etc. with two coats of synthetic enamel paint (of approved tint) complete all as specified all as directed

M&L for earthing using GI earthing with galvanised steel earth plate electode 600x600x6mm thick buried directly in ground, earth pit not less than 2.25m deep below ground level connection to and including GI strip of size 32x6mm extended to 7.5m as earth lead by means of GI bolts, nuts, etc. with provision of charcoal and salt all as per electrical plate No. 3 of SSR Part-I including water arrangement with GI pipe 20mm dia (medium grade), earth lead protection pipe 50mm medium grade with bends, elbow, etc. from earth plate to test point, excavation and earthwork in any type of soil, returning, filling, ramming and removing of soil to distance not exceeding 50m, make good to match with existing surface making PCC pit (earth chamber) having internal size 300x300x300mm and outer size 600x 600x600mm with RCC reinforced cover 50mm thick and testing on completion including making test points on wall as per SSR specifications, taking down and disposing off old earthing complete all as specified and as directed

M&L for earthing using copper plate earthing with copper earth plate electode 600x600x3.15mm thick buried directly in ground, earth pit not less than 2.25m deep below ground level connection to and including copper strip of size 20x3mm extended to 7.5m as earth lead by means of GI bolts, nuts, etc. with provision of charcoal and salt all as per electrical plate No. 3 of SSR Part-I including water arrangement with GI pipe 20mm dia (medium grade), earth lead protection pipe 32mm medium grade with bends, elbow, etc. from earth plate to test point, excavation and earthwork in any type of soil, returning, filling, ramming and removing of soil to distance not exceeding 50m, make good to match with existing surface making PCC pit (earth chamber) having internal size 300x300x300mm and outer size 600x 600x600mm with RCC reinforced cover 50mm thick and testing on completion including making test points on wall as per SSR specifications, taking down and disposing off old earthing complete all as specified and as directed

Notes for serial item Nos. 70 & 71: (i) The cost of GI/Cu earth continuity strip with GI pipe 20mm medium grade upto 7.5m is deemed to be included (ii) The earth chamber to be constructed 0.5m from edge of earth pit with necessary watering arrangement. The cost for the same is deemed to be included in above item (iii) Earthing shall produce desired earth resistance values as directed by the Engineer-in-charge

Supply, installation, testing and commissioning maintenance free tripod chemical earthing system consisting of 3Nos. of solid copper earth rod of 17.2mm dia and 3m long made of high tensile low carbon steel, molecularly bonded with 99.9% electrolyitc grade copper on outer surface having 250microns (minimum thickness) with exothermically jointed copper bus bar of 150x25x3mm for long lasting and connecting each copper rod and the exothemically jointed bus bar, both CPRI tested on at leat 25kA fault current ensuring high current carrying capacity of the system and earth rod should be certified by laboratories confirming to comply with UL 467 international standards grounding and bonding equipment and each rod should be used with minimum 25kg earth enhancing compund that should be ROHS tested and have passed leaching sulpher, corrosion, resisitivity test shall be less than 0.05lhm mtr and international standard for earth enhancement compound by NABL acredited laboratory and each rod should be interconnected with 8mm dia copper clad steel conductor at the distance of 3m to make a shape of traingle with top of the bore finished with 40mm thick PCC in 1:2:4 type B-1, 75mm thick PCC in 1:4:8 type D-2 and back fill/JAM compund shall be covered with advanced polymer pit cover of 30x30mm size complete all as specified and as directed

Notes for item No. 73: (i) The earthing shall comply to IS 3043, UL 467, BS/EN50164-7 (ii) The earth resistance shall be less than 01Ohm. A guarantee for 3years of this criterion shall be given by the Contractor. The quoted rate shall be deemed to be inclusive of this aspect (iii) To obtain earth resistance less than 01Ohm, if a combination two or more earthings are to be inter-connected or the length of the electrode/s is/are to be increased it shall be measured and paid as one earthing only (iv) Testing of earthing shall be carried out in presence of Departmental rep and requisite test reports shall be submitted (v) Cost of all excavation & earthwork required shall be deemed to be included in the quoted rate

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