REPAIR/MAINTENANCE OF TRANSFORMERS, SERVO VOLTAGE STABILIZER AND IMPROVEMENT TO ELECTRIC SUBSTATIONS AT VARIOUS LOCATIONS UNDER GE (E) MATHURA

Amount

Disconnecting electrical connections of Servo voltage stabilizer by taking out transformer oil and storing for reuse after cleaning and removing moisture, taking all the assembly of voltage stabilizer and removing / repairing the unserviceable parts, reassembling it after repair testing and commissioning the voltage stabilizer of capacity upto 150 KVA complete all as specified and directed. Note: (i) Spares required for replacement of unserviceable parts shall be measured and paid separately under item No 20 to 24 of scheldule as supply only and cost of labour thereof is deemed to be included in quoted item rate. (ii) Cost of transportation, loading, unloading from site to workshop & back including its installation, testing & commissioning complete is included in the quoted item rate.

All as per srl item No.1 above but for servo voltage stabilizer capacity 200 KVA.

All as per srl item No.1 above but for servo voltage stabilizer capacity 250 KVA.

Supply only PCB control card for automatic voltage correction suitable for voltage stabilizer of following capacities:

upto 150 KVA

Supply only carbon bushes for voltage stabilizer of following capacities:

upto 150 KVA

Supply only servo motor for voltage stabilizer of following capacities:

upto 150 KVA

Supply only Cast Iron dimmer gear set for automatic voltage correction for servo voltage stabilizer of capacities:

upto 150 KVA

Supply only Servo Dimmer Booster coil for automatic voltage correction suitable for servo stabilizer of following capacities:

upto 150 KVA

Rewinding of Servo stabilizer with super enamelled copper conductor winding wire of same guage including necessary insulating materials of capacities 40 KVA to 250 KVA complete all as specified and directed.

Taking down old unserviceable control wiring and replacement of control wiring using suitable gauge copper conductor as per existing winding for stabilizer of capacity 15 KVA to 250 KVA complete all as specified and directed.

Supply and fixing in replacement voltmeter 0 to 500 volts 96x96mm flush type in stabilizers complete all as specified and directed.

Supply and fixing in replacement ammeter 0-100 Amp square shape 96mm suitable for 100/5 CT ration complete all as specified and directed.

Disconnecting electrical connections of step down transformers 11KV/0.433 KV after taking proper electric shutdown and labour and T&P for opening / stripping of the same, draining out oil in clean barrels, lifting the core & coil assembly, washing and cleaning dust, dirt & sludge deposit from all parts, cleaning and polishing of tapping contact point, making internal connections, providing new cork sheet gasket packing 10 mm thick and pouring in the insulating oil in the transformer, re-assembling the transformer after repair work, checking for any leakages including replacement of any unserviceable parts required to make it serviceable all as directed and placing the transformer at original or any other location and making all electric connections including testing the transformer to the entire satisfaction complete ass as specified and directed of following capacities. Note: (i) Spares required for replacement of unserviceable parts shall be measured and paid separately under relevant item of this BOQ as supply only and cost of labour thereof is deemed to be included in unit rate quoted. (ii) Cost of transportation, loading, unloading from sub station to workshop & back including its installation, testing & commissioning complete is deemed to be included in unit rate quoted. (iii) Cost of checking BDV value of transformer oil is deemded to be in quoted rate.

50 KVA to 100 KVA

150 KVA to 250 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Supply only LV brass stud full threaded with required nuts & washer suitable for 11KV/433V distribution transformer complete all as specified and directed of following capacites:

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only HV brass stud full threaded with required nuts & washer suitable for 11KV/433V distribution transformer complete all as specified and directed of following capacites:

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only LV bushing with gasket suitable for 11KV/433V distribution transformer complete all as specified and directed of following capacites:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only HV bushing with gasket and arcing horn suitable for 11KV/433V distribution transformer complete all as specified and directed of following capacites:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Rewinding of transformer LV coil (433 Volt) with super enamelled copper wire winding of same guage including necessary insulating materials and baking the coil in vacuum furnace for transformer 50 KVA to 630 KVA capacity transformers complete all as specified and directed.

Rewinding of transformer 11 KV HV coil with super enamelled copper wire winding of same guage including necessary insulating materials and baking the coil in vacuum furnace for 50 KVA to 630 KVA capacity transformers complete all as specified and directed.

Supply only new transformer oil, clear, transparent and free from all type of suspended matter or sediment, ISI marked as per IS:335/93 with amdt. No.1 (Reaffirmed: 2005) dehydrated to give BDV value not less than 60 KV when tested with 2.5 mm gap electrode for topping up complete all as specified and directed.

Replacement of old unserviceable/ damaged temperature gauge with new temperature gauge suitable for transformer of any capacity and any type including all necessary accessories i.e. nipple, socket, complete all as specified and directed.

Supply and fixing in repair transformer breather assembly oil seal type made of transparant PVC body heavy duty filled with good quality silica gel blue colour of capacity 800 grams complete all as specified and directed.

Supply and fixing in repair transformer breather assembly oil seal type made of transparant PVC body heavy duty filled with good quality silica gel blue colour of capacity 1200 grams complete all as specified and directed.

Supply and filling silica gel blue colour in existing breather assembly oil seal type filled with good quality silica gel blue colour of capacity as per required at site complete all as specified and directed.

Material and labour for filtration / dehydration of insulating oil of transformer in position to achieve dielectric strength 50 KV or above (when tested with 2.5 mm gap electrode) complete all as specified and directed.

Preparation of old painted external surface of transformer by removing the scrap, rust, washing including cleaning & spray painting with two coats of synthetic enamel grey paint over a coat of primer complete all as specified and directed for the following capacities:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

315 KVA to 630 KVA.

S&F aluminium lugs for the following sizes complete all as specified and directed :-

25 to 50 Sqmm

50 to 70 Sqmm

70 to 95 Sqmm

120 to 150 Sqmm

185 to 240 Sqmm

300 to 400 Sqmm

Heat shrinkable PVC sleeve, suitable for XLPE LT cable fo following sizes with Red, yellow, blue and black colour code complete:-

Earthing complete with galvanised steel earth plate electrode 60cmX60cmX6.0mm thick, buried directly in ground (earth pit not less than 2.25mtr deep below normal ground level) with top edge of the plate not than 1.5mtr below normal ground level connected to GI earth strip of size 32x6mm dia by means of bolts, nuts, check nuts and washers of galvanised iron complete earth pit of PCC M-10(Nominal mix) using 20mm graded stone aggregate, 50mm thick earth pit cover of RCC M-15 (Nominal mix) using 20mm graded stone aggregate with MS TMT reinforcement bar of 8mm dia @ 150mm centre to centre both ways, MS handle 10mm dia made to shape, PGI funnel, wire mesh and 20mm bore GI water pipe medium grade and 40mm bore medium grade GI pipe for protection of earth strip from plate to main switch board, common salt, charcoal dust including testing on completion complete all as specified and as directed all as shown in electrical plate No. 3 including testing on completion and making good the disturbed surfaces of wall floors etc without claiming extra cost complete all as specified and directed. Note: GI strip beyond 7.5 Mtr length from earth electrode shall be measured and paid separately).

M&L for Electrical insulation rubber mating as per ISI and size 1m x 2m x 25mm thick complete all as specified and directed.

Excavating in trenches for laying under ground cable, erection of poles and stays in soft/loose soil not exceeding 1.5 meter wide and not exceeding 1.5 meter deep and getting out complete all as specified and directed.

Excavation in soft /loose soil in trenches not exceeding 1.5 mtr wide and exceeding 1.5 mtr in depth but not exceeding 3.0 mtr in depth and getting out complete all as specified and directed.

Supplying and laying un-reinforced precast concrete cable cover class HV type 1 with size 300 mm x 180 mm x 40 mm (ISI Marked) complete all as specified and directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick complete all as specified and directed.

Removing surplus excavated material to a distance not exceeding 50m above the starting point complete all as specified and directed.

M&L for sand cushioning to under ground cable in trenches in layers of 8 cm deep before laying the cable and 15 cm deep after laying and stretching the cable complete all as specified and directed. Note:- Measurement shall be taken after gentling puning of sand.

Supply and laying unreinforced precast concrete cable covers LV type-1, size 250mm x 150mm x 40mm complete all as specified and directed.

Supply, laying, jointing and testing of XLPE insulated, sheathed, armoured, heavy duty LT 1100 volts grade cable with aluminium conductor laid in trenches / pipes, fixed to poles / walls, fixing with suitable saddle/clamps complete all as directed including taking out the old burnt out cables complete all as specified and directed of following sizes:- Note:- Excavation, returning and removal shall be measured and paid seperately under relevant item of BOQ.

95 Sqmm 3.5 core.

120 Sqmm 3.5 core.

185 Sqmm 3.5 core.

240 Sqmm single core.

300 Sqmm single core.

Cutting wild grass, bushes, creaper, unwanted vegetation and trees not exceeding 30 cm girth (measured one metre above ground level) and removing rubbish upto a distance of 50 metres outside the periphery of the area under clearance from inside / surrounding of E/M sub station (transformers) including cutting creapers from barbed / cattle fencing of the sub stn as when directed and removing of unwanted material from installation fencing/compound and depositing where directed after taking proper electric shutdown form MRS Mathura. Note :- 1. The item shall be operated maximum two times in entire period of contract in the same installations. 2. Area measured separately each time.

Supply and fixing of glow sign boards for MRS made up of retroreflective material (blue colour) fixed on stainless sheet of size 1.5 mtr x 1.0 mtr x 8 mm including mounting arrangement with stainless steel pipe of 20 mm for board beadings and 40 mm size for vertical erection of length 2.5 mtrs including connected civil work like digging foundations, PCC etc required for vertical erection of sign board and writing the letters on sign board as reqd complete all as specified and directed.

Supply and fixing in repair of glow sign boards for E/M installtions made up of retroreflective material (blue colour) fixed on stainless sheet of size 0.6 mtr x 0.4mtr x 3 mm including mounting arrangement with stainless steel pipe of 20 mm for board beadings and 40 mm size for vertical erection of length 2.0 mtrs including connected civil work like digging foundations, PCC etc required for vertical erection of sign board and writing the letters on sign board in white complete all as specified and directed.

Supply and fixing in replacement drop out fuse assy single pole 11 KV, 25 Amps rating complete with expulsion fuse element mounted on four/two pole structures including necessary nuts, bolts and washers complete all as specified and directed.

Disconnecting and taking down HT UG cable from HT pole/ transformer and cutting faulty end portion of the cable, dressing properly and making good end termination, outdoor type with and including suitable size of heat shrinkable new jointing kit 11000 volts grade and aluminum lugs duly crimped with crimping tool for the following sizes of HT cables:-

95 Sqmm to 185 Sqmm 3 core.

Disconnecting and taking down HT UG cable from HT pole/ transformer and cutting faulty end portion of the cable, dressing properly and making good end termination, Indoor type with and including suitable size of heat shrinkable new jointing kit 11000 volts grade and aluminum lugs duly crimped with crimping tool for the following sizes of HT cables:-

95 Sqmm to 185 Sqmm 3 core.

Supply and jointing HT cable with jointing kit for 11 KV (Earthed) grade cable for straight through heat shrinkable type joint with jointing material and accessories suitable for 3 core XLPE armoured aluminum conductor cable of following sizes of HT cables:-

95 Sqmm to 185 Sqmm 3 core.

Supply and jointing HT cable with jointing kit for 11 KV (Earthed) grade cable for end termination heat shrinkable type joint with jointing material and accessories suitable for 3 core XLPE armoured aluminum conductor cable of following sizes of HT cables:-

95 Sqmm to 185 Sqmm 3 core.

Dismantling unserviceable cross arms, clamps etc and removing from site complete all as specified and directed.

Material and labour for cross arms, bracings, supports, clamps, hooks 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 aluminum paint complete all as specified and directed.

Supplying, laying, testing and commissioning in repair, XLPE insulated, screened, PVC sheathed galvanised steel strip armoured, electric power cables (heavy duty) with stranded aluminium conductor ISI marked 11 KV grade (Earthed system) laid in trenches / on pole / in ducts or through sleeves of size 120 Sqmm 3 core complete all as specified and directed.

All as per item 50 above but cross sectional area of size 150 Sqmm 3 core

All as per item 50 above but cross sectional area of size 95 Sqmm 3 core

All as per item 50 above but cross sectional area of size 185 Sqmm 3 core

Material and labour for taking out HT underground cable of any size or type from excavated trenches, repairing the same as required at site and relaying the cable after repair at same or another location complete all as specified and directed. Note - Necessary excavation, earthwork, jointing materials will be measured and paid separately under relevant items of schedule.

Dismantling steel tubular poles of any size complete all as specified and directed.

Supply and erecting steel tubular swaged pole with cast iron base plate, finial taper plug, bolts, nuts & washers as per IS 2713 (Part-II) 1980 made out of mild steel tubing, type 410 SP-55 (11 metre long) including painting of poles with one coat of red oxide primer and two coat of aluminum paint (one coat before fixing and one coat of aluminum paint after fixing) over exposed surface and two coats of bituminous paint over embedded portion & the portion above coping shall be painted in alternative bands of black and yellow colour starting with white colour (each band of 30cm wide) by two coats of super enameled paint upto 1.5m height complete all as specified and directed. Note : Earth work and PCC shall be measured separately.

M&L for PCC 1:4:8 type D-2 using 40mm graded crushed stone aggregate as in foundation filling and mass concrete complete all as specified and directed.

M&L for PCC 1:3:6 type C-2 using 40mm graded crushed stone aggregate as in foundation complete all as specified and directed.

M&L for PCC 1:2:4 type B1 using 20mm graded crushed stone aggregate as in coping complete all as specified and directed.

M&L for painting of steel tubular HT pole 11 mtr including cross arms, clamps, back plates etc in situ with one under coat and one finishing coat of aluminum paint after cleaning/ preparation of surfaces including making yellow and black strips 30 cm wide 5 Nos with two coats of synthetic enamel paint complete all as specified and directed.

All as per item No 60 above but for 2 pole structure including bracings.

All as per item No 60 above but for 4 pole structure including bracings.

Supply and fixing in replacement of MCCB 630Amp rating, 4-pole 415V, Electronic release with overload and short circuit adjustable type breaking capacity 50 KA complete all as specified and directed.

Supply and fixing in replacement of MCCB 400Amp rating,4-pole 415V, adjustable thermal adjustable megnetic type breaking capacity 50 KA complete all as specified and directed.

Supply and fixing in replacement of MCCB 63Amp rating,3-pole 415V, fixed thermal fixed megnetic type breaking capacity 16KA complete all as specified and directed.

Supply and fixing in replacement of MCCB 125Amp rating,4-pole 415V, adjustable thermal adjustable megnetic type breaking capacity 16KA complete all as specified and directed.

Supply and fixing in replacement of MCCB 250Amp rating,4-pole 415V, adjustable thermal adjustable megnetic type breaking capacity 35KA complete all as specified and directed.

Supply and fixing in replacement of MCCB 100Amp rating,4-pole 415V, adjustable thermal adjustable megnetic type adjustable thermal adjustable megnetic type breaking capacity 16KA complete all as specified and directed.

Supply and fixing in replacement of MCCB 250Amp rating,3-pole 415V, adjustable thermal adjustable megnetic type breaking capacity 35KA complete all as specified and directed.

Supply and fixing in replacement of MCCB 200Amp rating,3-pole 415V, adjustable thermal adjustable megnetic type breaking capacity 35KA complete all as specified and directed.

Material and labour for repair/overhauling of off load tap changer of step down transformer 11kv/433V including connection complete all as specified and directed.

Demolition of brickwork built in cement mortar or cement lime mortar complete all as specified and directed.

M&L for Brickwork with subclass B' bricks ,straight or curved on plan exc 6m mean radius built in CM 1:6 complete all as specified and directed.

Taking down cement plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc complete all as specified and directed.

M & L for Plaster 10mm thickness in CM 1:4 on fair faces of brick work complete all as specified and directed.

Demolition of Concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and directed.

M&L for 100mm thick Cement concrete type B-2 1:2:4 using 40mm graded crushed stone aggregate In flooring finished surface even and smooth using extra cement complete all as specified and directed.

M&L for 150mm thick PCC Cement concrete type D-2, 1:4:8 using 40mm graded crushed stone aggregate in sub base complete all as specified and directed.

Preparing surfaces/brick work plasterd and M&L for two coats of white washing complete all as specified and directed.

Supplying and fixing in replacement 1100 volts grade heavy duty control cable, copper conductor, PVC insulated, armoued, stranded of sizes 2.5 Sqmm 4 core complete in duct/ceiling/roof with proper clamping etc complete all as specified and directed.

Supplying and fixing in replacement 1100 volts grade heavy duty control cable, copper conductor, PVC insulated, armoured, stranded of sizes 2.5 Sqmm 8 core complete in duct/ceiling/roof with proper clamping etc complete all as specified and directed.

Supplying and fixing in replacement 1100 volts grade heavy duty control cable, copper conductor, PVC insulated, armoured, stranded of sizes 2.5 Sqmm 2 core complete in duct/ceiling/roof with proper clamping etc complete all as specified and directed.

shyam construction (BID ID -3403811)

M/S S S CONSTRUCTION (BID ID -3411545)