REPAIR/REPLACEMENT OF LT UG CABLE, PANELS, PERIODICAL MAINT OF TRANSFORMERS, FOUR/TWO POLE STRUCTURE AND CONNECTED MISC WORK AT NMS, AGE NABAGRAM UNDER GE (P), KOLKATA

Amount

M & L Pin type, porcelain, vitreous, white,brown or green insulator including one galvanised mild steel spindle two galvanised iron washers and one galvanised iron nut, 150mm height, 150 mm dia for 11000 volts grade complete all as specified and directed.

M & L Anti-climbing device; spikes type fabricated out of M.S. bars (round square and flat) including nuts,bolts, washers and welding in two halves made to shape to suit the cross section of the pole complete all as specified and directed.

M & L Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25 x 20 cm size complete all as specified and directed.

M & L Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp complete all as specified and directed.

M&L Switches air break 11000 volt , gang operated, triple pole mechanically operated, mounted on insulators and steel frame with operating mechanism worked from ground level for current rating upto 400 Amps complete all as specified and as directed including dismantling of old unerviceble one complete all as specified and as directed.

M&L Expulsion fuse single pole, 11000 volts, rating above 25 and upto 50 amp complete all as specified and as directed including dismantling of old unerviceble one complete all as specified and as directed.

Repair/replacement & serviceing of two pole & four pole structure by greasing of mechanical linkage gang operated switch, DO, dismental of existing detoriate ACSR jumper,replacing of unserviceable 11000 volt Pin insulator & reconnected with new ACSR jumper, using new drop out fuse unit,changing of leaver hook and locking arrangement complete all as directed. Note: Bidder shall obtain Proper 11 KV shut down from authority concern prior to start work and shall be done the work by / in the presence of 11 KV licecnse holder Electrician.

Material and labour for painting to HT Two pole and four pole structure with cross arm ,support arm complete with one coat of synthetic enamel aluminium paint complete all as specified. Note: Bidder shall obtain Proper 11 KV shut down from authority concern prior to start work and shall be done the work by / in the presence of 11 KV licecnse holder Electrician.

Material and labour for painting to 250 KVA stepdown transformer of existing colour with one coats of synthetic enamel paint complete all as specified. Note: Bidder shall obtain Proper 11 KV shut down from authority concern prior to start work and shall be done the work by / in the presence of 11 KV licecnse holder Electrician.

Supply and fix cable jointing kit for 11 KV (Earthed) grade cable for Outdoor termination heat shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE, armoured aluminium conductor cable of size 95 sqmm including testing after jointing complete all as specified and directed. Make: M-Seal/ 3M/ Raychem/ Denson

Supply and fix cable jointing kit for 11 KV (Earthed) grade cable for Indoor termination heat shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, aluminium conductor cable of size 95 sqmm including testing after jointing complete all as specified and directed. Make: M-Seal/ 3M/ Raychem/ Denson

Taking down the defective air breathers from the transformers, supply and fix new breathers suitable for step down distribution transformers of any make and capacity 250 KVA including filling of new silica gel in breathers complete all as specified and directed.

Supply and topping up transformer oil conforming to IS: 335(1993), dielectric strength not less than 60 KV at 2.5 mm gap in various capacities distribution transformers installed at various indoor and outdoor sub stations complete all as specified and directed. Make: Power oil/SERVO/Castrol/Shell.

Dehydration of transformer oil of various capacities distribution transformers installed at various indoor and outdoor substations with ultra high vacuum filtration machine to obtain the dielectric strength of 60 KV at 2.5 mm gap complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode 60 X 60 X 6 mm thick buried directly in ground vertically at a depth (earth pit not less than 2.25M deep below ground level with top of the plate not less than 1.5 meter below normal ground level,earth plate surrounded from all sides by 15cm thick packed layer of charcoal,dust & common salt filling in alternate layer and electrode connection by using galvanised iron strip 32X6mm as eatrhing lead(up to the test point) by means of boltts nuts, check nuts and washers made of GI tubing 40 mm bore ,GI pipe connected upto test point and GI pipe light grade 20mm bore for watering and including funnel,wire mash,RCC pit cover and PCC chamber pit with PCC (1:3: 6) type C II using 40mm graded stone aggregate,including excavation and earth work in any type of soil,returning,filling in approved soil and disposal of surplus soil to a distance not exceeding 50m all as specified and shown in electrical plate no 3 of SSR-1991(Part-1), complete all as specified and as directed by Engineer-in-charge.

Excavation in trenches n.exc 1.5 m wide and not exc 1.5 m depth for foundation, laying of cables etc or for shafts, wells, cesspits,manholes, pier holes, etc. n exc 10 sq m on plan and getting out in soft / loose soil complete all as specified and directed.

Returning and filling in of excavated material any type soil including spreading, levelling, watering and well ramming in layers not exceeding 25 cm each complete all as specified and directed.

Removal of surplus excavated material of any type to a distance not exceeding 50 m and depositing where directed at a level not exc. 1.5 m bove the starting point complete all as specified and directed.

M&L for sand cushioning / sand covering for underground cable protection complete all as specified. Note: Punned thickness shall only be measured and paid.

Supply and laying sub class 'B' bricks of old size (approved size locally available) laid along alignment of cable as protection to cable in trenches complete all as specified and directed by Engineer-in-Charge.

Maerial and labour for boring a horizantal hole i.e. Trechless hole for inserting 50 mm bore pipe under the road below 1.5 m from the road/hard surface by trenchless technology using ultasonic technique and including arranging necessary machine, T&P and getting out any type of soil and dispose of soil to a distance not exceeding 50 m from site complete all as specified and directed by Engineer-in-Charge. ( NOTE : Pipe shall be measured and paid separately )

M&L for GI pipe light grade 40 mm dia laid along road crossings / plinth protection with suitable fittings for cable protection or fixed to the pole/ Wall complete all as specified and directed by Engineer-in-Charge . Make : Bansal / Tata / Jindal steel / Prakash

Supplying, laying, testing and commissioning LT XLPE insulated , armoured heavy duty electric cable of following sizes, 1100 volts grade with stranded aluminium conductor laid in trenches / passing through pipe / duct/ road crossing /fixed on poles / walls Complete all as specified and directed. MAKE: Havells / Gloster / KEI Industries Ltd / Polycab / Asian Cables / Finolex [Note: The rate quoted shall inclusive of termination at ends with suitable aluminium lugs where required]

16 Sqmm 4 Core

25 Sqmm 3.5 Core

35 Sqmm 3.5 Core

50 Sqmm 3.5 Core

150 Sqmm 3.5 Core

Supply, fixing and testing as in repairs, straight through joint heat shrinkable type with jointing kit suitable for cable XLPE insulated armoured heavy duty aluminium conductor 1100 Volts grade in any situation/position complete all as directed for the following sizes :- Make: 3M / Denson / M-Seal / Raychem

16 - 25 Sqmm x 3.5 core/4 core

25-50 Sqmm x 3.5 core

70-150 Sqmm x 3.5 core

Supply only MCB double pole, 'C'series, 40 to 63 Amps, 10 KA complete all as specified and directed. ( Make : Legrand / ABB / Schneider / L&T / GE / C & S )

Supply only MCB TPN, 'C'series, 63 Amps, 10 KA complete all as specified and directed. ( Make : Legrand / ABB / Schneider / L&T / GE / C & S )

Taking out / taking down old unserviceable underground cable of any size with cable protection from any location, keeping in safe custody and relaying at new/ old location using same brick & connecting after replacement of straight through joint complete all as specified and directed. Note : - (a) Excavation & earthwork & joint kit shall be measured and paid separately. (b) Cost of taking out joint is included in the unit rate of this item. (c) Laying of old brick/ slab are included in quoted rate. (d) Rate quoted shall include for provision of required sand filling also.

M&L for earthing complete with galvanised steel earth plate electrode 60 X 60 X 6 mm thick buried directly in ground vertically at a depth (earth pit not less than 2.25M deep below ground level with top of the plate not less than 1.5 meter below normal ground level,earth plate surrounded from all sides by 15cm thick packed layer of charcoal,dust & common salt filling in alternate layer and electrode connection by using galvanised iron strip 25X4 mm as eatrhing lead (up to the test point) by means of boltts nuts, check nuts and washers made of GI tubing 40 mm bore ,GI pipe connected upto test point and GI pipe light grade 20mm bore for watering and including funnel,wire mash,RCC pit cover and PCC chamber pit with PCC (1:3: 6) type C II using 40mm graded stone aggregate,including excavation and earth work in any type of soil,returning,filling in approved soil and disposal of surplus soil to a distance not exceeding 50m all as specified and shown in electrical plate no 3 of SSR-1991(Part-1), complete all as specified and as directed by Engineer-in-charge.

Supply and fix in repairs galvanised iron strip 25x4 mm as in 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. complete all as specified and directed.

M/S Ali Trading Co

M/S New Builders Corporation

M.SK CONTRACTOR