REPAIR AND MAINTENANCE OF TRANSFORMERS AND ALLIED WORKS UNDER AGE E/M BAIRAGARH UNDER GE BHOPAL

Amount

Opening of transformer of capacity 200 kVA to 2000 kVA, 33 kV /0.433 volts, outdoor type of any make after unscrewing nuts & bolts, screws and connected, dismantling carefully connected accessories and removing primary and secondary terminals, top cover, conservator tank, temp gauge, breather, neutral earth strips and draining out transformer oil to the required level and storing carefully in cleaned containers (to be arranged by contractor) etc. for replacement of defective parts such as replacement of leaking gaskets, replacement of worn out/burnt out studs, checking and cleaning of contacts of tap changer and re-assembling the transformer after replacing the defective parts, testing complete all as specified and as directed. Note: - (a) Transformer oil shall be drained out by the contractor in suitable capacity mild steel drums to be arranged by the contractor. The said drained out transformer oil shall be refilled in the transformer duly dehydrated after repair and the cost thereof shall be included in unit rate quoted against the respective item of this schedule and paid separately. (b) The spare parts excluding nuts, bolts, washer, gasket etc. shall be measured and paid for separately. (c) Testing of transformer after repair shall be carried out as per IS 2026 (Part 1): 2011 and testing as specified and the cost of testing shall be deemed to be included in unit rate quoted against this item.

Carrying out field test for visual inspection (colour and appearance), break down voltage, water content and acidity before and submission of report all as per IS 1866: 2017 and IEC 60422: 2013 complete all as specified and as directed.

Filtration, Dehydration, reconditioning of transformer oil by using filtering equipment, vacuum dehydrator etc. to obtain minimum break down voltage of 60 kV and maximum water content of 30 mg/kg as per IS 1866: 2017 and IEC 60422: 2013 complete all as specified and as directed.

Supply and fill unused mineral insulating oils conforming to IS 335: 2018, Type II Class (Transformer oils), Uninhibited (U), pour point -10⁰C, vacuum filtered in a laboratory, Breakdown voltage of min 70 kV at 2.5 mm gap complete all as specified and as directed.

S & F in repairs 36 kV/ 250 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 5 (section 1 & 2) complete all as specified and as directed.

S & F in repairs upto and including 1.1 kV/ 3150 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 1 (section 1 & 2) complete all as specified and as directed.

S & F in repairs upto and including 1.1 kV/ 2000 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 1 (section 1 & 2) complete all as specified and as directed.

S & F in repairs upto and including 1.1 kV/ 1000 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 1 (section 1 & 2) complete all as specified and as directed.

S & F in repairs upto and including 1.1 kV/ 630 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 1 (section 1 & 2) complete all as specified and as directed.

S & F in repairs upto and including 1.1 kV/ 250 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 1 (section 1 & 2) complete all as specified and as directed.

S & F in repairs 25 mm dia gunmetal drain valve of transformer as per existing one along with brass/ gun metal dummy cap complete all as specified and as directed.

S & F in repairs 50 mm dia gunmetal drain valve of transformer as per existing one along with brass/ gun metal dummy cap complete all as specified and as directed.

M & L for replacement of silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour for transformer of any capacity.

S & F in repairs silica gel breather containing 250 gms silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour silica, breather body made out of aluminium pressure die cast, shot blasted and powder coated, container and oil cup made out of 143R grade UV resistant polycarbonate, all gaskets made out of nitrile cork (RC 70C) rubber, flanged type. breather piping doesn’t include any valve between conservator and breather, removable type mounted at suitable height from ground level, tested for 0.35 kg / cm for all joints complete all as specified and as directed.

M & L for tap changer off load type suitable for transformer of capacity 100 kVA to 630 kVA complete all as specified and as directed.

M & L for arresting leakage of transformer oil by replacing gasket to be provided after draining out of transformer oil and refilling after replacement including disconnecting power supply for distribution transformer outdoor type 33 kV /415 volts having capacity upto and including 200 kVA complete all as specified and as directed.

M & L for arresting leakage of transformer oil by replacing gasket to be provided after draining out of transformer oil and refilling after replacement including disconnecting power supply for distribution transformer outdoor type 33 kV /415 volts having capacity above 200 kVA and upto and including 315 kVAcomplete all as specified and as directed.

M & L for arresting leakage of transformer oil by replacing gasket to be provided after draining out of transformer oil and refilling after replacement including disconnecting power supply for distribution transformer outdoor type 33 kV /415 volts having capacity of 2000 kVA complete all as specified and as directed.

M & L for spray painting of transformers (any type power or distribution)) of capacity upto and including 250 kVA (in situ) outdoor type, installed and located at different sites in scattered area under the GE complete all as specified and as directed including the following: - (a) Removal of grease, oil and other contaminants using de-greasing solvent. (b) De-rusting of surface and cleaning manually by scrubbing and wire brushing. (c) Washing thoroughly and dry properly. (d) Applying two coats of zinc phosphate primer by spray machine (e) Final painting of two coats with synthetic enamel paint by spray machine over priming coat. (f) the colours of painting shall be (i) grey for transformer body, (ii) red, yellow & blue for HT bushing, (iii) red, yellow, blue & black for LT bushing, (iv) red for drain plug, (v) white for writing SM/ MES No., location, area feeding (in short) over the body of transformer.

M & L for spray painting of transformers (any type power or distribution)) of capacity above 300 kVA and upto and including 500 kVA (in situ) outdoor type, installed and located at different sites in scattered area under the GE complete all as specified and as directed including the following: - (a) Removal of grease, oil and other contaminants using de-greasing solvent. (b) De-rusting of surface and cleaning manually by scrubbing and wire brushing. (c) Washing thoroughly and dry properly. (d) Applying two coats of zinc phosphate primer by spray machine (e) Final painting of two coats with synthetic enamel paint by spray machine over priming coat. (f) the colours of painting shall be (i) grey for transformer body, (ii) red, yellow & blue for HT bushing, (iii) red, yellow, blue & black for LT bushing, (iv) red for drain plug, (v) white for writing SM/ MES No., location, area feeding (in short) over the body of transformer.

M & L for spray painting of transformers (any type power or distribution)) of capacity above 600 kVA and upto and including 750 kVA (in situ) outdoor type, installed and located at different sites in scattered area under the GE complete all as specified and as directed including the following: - (a) Removal of grease, oil and other contaminants using de-greasing solvent. (b) De-rusting of surface and cleaning manually by scrubbing and wire brushing. (c) Washing thoroughly and dry properly. (d) Applying two coats of zinc phosphate primer by spray machine (e) Final painting of two coats with synthetic enamel paint by spray machine over priming coat. (f) the colours of painting shall be (i) grey for transformer body, (ii) red, yellow & blue for HT bushing, (iii) red, yellow, blue & black for LT bushing, (iv) red for drain plug, (v) white for writing SM/ MES No., location, area feeding (in short) over the body of transformer.

M & L for spray painting of transformers (any type power or distribution)) of capacity above 1500 kVA and upto and including 2000 kVA (in situ) outdoor type, installed and located at different sites in scattered area under the GE complete all as specified and as directed including the following: - (a) Removal of grease, oil and other contaminants using de-greasing solvent. (b) De-rusting of surface and cleaning manually by scrubbing and wire brushing. (c) Washing thoroughly and dry properly. (d) Applying two coats of zinc phosphate primer by spray machine (e) Final painting of two coats with synthetic enamel paint by spray machine over priming coat. (f) the colours of painting shall be (i) grey for transformer body, (ii) red, yellow & blue for HT bushing, (iii) red, yellow, blue & black for LT bushing, (iv) red for drain plug, (v) white for writing SM/ MES No., location, area feeding (in short) over the body of transformer.

S & F cable jointing kit for 1100 V (Earthed) grade cable for straight through heat shrink type joint, indoor/ outdoor type complete with jointing material and accessories suitable for 3 core with reduced neutral conductors (3½ core) or 4 core XLPE armoured aluminium conductor cable of size 70 sqmm to 95 sqmm complete all as specified and as directed.

S & F cable jointing kit for 1100 V (Earthed) grade cable for straight through heat shrink type joint, indoor/ outdoor type complete with jointing material and accessories suitable for 3 core with reduced neutral conductors (3½ core) or 4 core XLPE armoured aluminium conductor cable of size 120 sqmm to 150 sqmm complete all as specified and as directed.

S & F cable jointing kit for 1100 V (Earthed) grade cable for straight through heat shrink type joint, indoor/ outdoor type complete with jointing material and accessories suitable for 3 core with reduced neutral conductors (3½ core) or 4 core XLPE armoured aluminium conductor cable of size 185 sqmm to 240 sqmm complete all as specified and as directed.

S & F cable jointing kit for 1100 V (Earthed) grade cable for straight through heat shrink type joint, indoor/ outdoor type complete with jointing material and accessories suitable for 3 core with reduced neutral conductors (3½ core) or 4 core XLPE armoured aluminium conductor cable of size 300 sqmm to 400 sqmm complete all as specified and as directed.

Disconnecting all existing connection with transfomer and taking down and shifting transformer from any substation under the GE to new location with help of Hydra (Recovery)/JCB/ Crane etc. and including installation at new location including connecting all connections, earthings, conductors, cables, nuts, bolts, washers etc. complete all as specified and as directed.

M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 32 mm X 6 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c both ways with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge.

S & F in repairs 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 32 mm X 6 mm galvanised mild steel strip complete all as specified and as directed.

M & L for cleaning and up keeping of MES installations / campus by surface dressing or trimming of natural ground to remove small inequalities not exceeding 15 cm deep ( including removing vegetation / shrubs / brush wood / under-growth ), cleaning of drains ( drain size 0.50 m x 0.40 m for 60 m length) & carrying away the rubbish to a distance of not exceeding 50 m away complete within fencing perimeter approximately 30 m x 50 m. complete all as directed. Note : Each job will be measured for a completed month.

M & L for trimming of branches of trees touching HT/LT Electric over head line and making clear about 3 m in radius and carrying and disposal where directed not exceeding 50 m complete all as directed. Note :- Vehicle and othe T&P shall be arranged by the contractor at own cost.

Supply only pressure sensitive adhesive plasticized PVC tapes with non-thermosetting adhesive, designation F-PVC/90/0/Tp, general purpose application for electrical insulation, plasticized polyvinylchloride backing material, thickness 0.125 mm, width 25 mm, length 20 metre all as per o IS 7809 (Part 3/section 1): 1986

S & F drop out fuse barrel for 33 kV line, 15 A with fire resistant tube and joint with ferrule complete all as specified and as directed.

M/S RAKESH TRADERS