REPAIR AND MAINTENANCE OF TRANSFORMERS AND VOLTAGE STABILIZERS AT HISAR MIL STN UNDER GE HISAR

Amount

Disconnecting, taking down automatic, servo controlled, indoor type, automatic voltage stabilizer of capacity upto 500 kVA, three phase, copper wound, oil cooled type, designed for input voltage of 340 V to 480 V and output voltage of 415 V ± 1% (Phase to phase), 240±1% (Phase to neutral), transportation to the workshop for repairs including opening of stabilizer, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired stabilizer for all the routine tests Note: - (a) 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. (b) Rewinding of coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket, etc., shall be measured and paid for separately. (e) The said stabilizer shall be repaired in reputed workshop as decided by the GE. (f) Testing of voltage stabilizer after repair shall be carried out as specified and the cost of testing shall be deemed to be included in unit rate quoted against this item. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded.

S & F in repairs servo control card of existing size and make complete all as specified and as directed.

S & F in repairs dimmer of motor 10 kg as per existing complete all as specified and as directed.

S & F in repairs of transformer 24 volt as per existing complete all as specified and as directed.

S & F in repairs of gear of teeth as per existing complete all as specified and as directed.

M&L for rewinding of coil of gauge 150 Amps as per existing complete all as specified and as directed.

S & F in repairs of low and high cut off of transformer 24 volt as per existing

S & F in repairs of SPDT switch as per existing complete all as specified and as directed.

S & F in repairs of pot switch as per existing complete all as specified and as directed.

S & F in repairs of relay as per existing complete all as specified and as directed.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity upto and including 200 kVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments including providing alternate transformer having same capacity during the period 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. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket, etc., shall be measured and paid for separately. (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) 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. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded. (h) The contractor shall provide his own transformer having same capacity and restore and maintain electrical supply till repairing and refixing of repaired transformer.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity from 250 kVA upto and including 400 kVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments including providing alternate transformer having same capacity during the period 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. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket, etc., shall be measured and paid for separately. (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) 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. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded. (h) The contractor shall provide his own transformer having same capacity and restore and maintain electrical supply till repairing and refixing of repaired transformer.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity from 500 kVA upto and including 750 kVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments including providing alternate transformer having same capacity during the period 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. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket, etc., shall be measured and paid for separately. (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) 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. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded. (h) The contractor shall provide his own transformer having same capacity and restore and maintain electrical supply till repairing and refixing of repaired transformer.

M & L for rewinding of coils on primary side of transformer of any capacity using proper size, double paper covered aluminium winding wires conforming to IS 6162 (Part-II): 1971 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

M & L for rewinding of coils on secondary side of transformer of any capacity using proper size, double paper covered aluminium winding wires conforming to IS 6162 (Part-II): 1971 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

M & L for rewinding of coils on primary side of transformer of any capacity using proper size, double paper covering, ordinary copper winding wires conforming to IS 7404 (Part-1): 1991 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

M & L for rewinding of coils on secondary side of transformer of any capacity using proper size, double paper covering, ordinary copper winding wires conforming to IS 7404 (Part-1): 1991 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

S & F in repairs tap changer off load type, 7 number of tap positions, voltage variations +5 percent to 10 percent in steps of 2.5 percent suitable for transformer of capacity upto 750 kVA complete all as specified and as directed.

S & F in repairs top cover cork gasket sheet, 6 mm thick, type C, RC 80-A grade as per IS 4253 (Part-2): 2008 for transformer tank complete all as specified and as directed.

Taking out old unserviceable burn out core lamination from transformer and S & F new core lamination made of cold rolled grain oriented (CRGO) steel or amorphous steel as per the existing grade, type etc. conforming to Indian standards complete all as specified and as directed.

Disconnecting from the existing connections, opening of distribution transformer of capacity upto and including 1500 kVA, 11 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 reassembling the transformer after replacing the defective parts, testing complete all as specified and as directed. Note: - (a) The transformer shall be repaired on the site. (b) 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. (c) The spare parts excluding nuts, bolts, washer, gasket etc. shall be measured and paid for separately. (d) 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.

S & F in repairs 12 kV or 17.5 kV/ 250 A bushing (only metal parts wth brass stem) with accessories as per IS 3347 Part 3 (section 2) complete all as specified and as directed.

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

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

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

S & F in repairs aluminium strip 130 mm X 30 mm X 6 mm (Length X breadth X thickness) including two hole 6 mm in both side for copper terminal stud complete with double nuts & washers suitable for LV size 415 volts grade and for 50 kVA to 160 kVA capacity of outdoor / indoor type transformer complete all as specified and as directed.

S & F in repairs aluminium strip 130 mm X 40 mm X 10 mm (Length X breadth X thickness) including two hole 6mm in both side for copper terminal stud complete with double nuts & washers suitable for LV size 415 volts grade and for 250 kVA to 400 kVA capacity of outdoor / indoor type transformer complete all as specified and as directed.

S & F in repairs aluminium strip 130 mm X 80 mm X 10 mm (Length X breadth X thickness) including two hole 6mm in both side for copper terminal stud complete with double nuts & washers suitable for LV size 415 volts grade and for 500 kVA to 750 kVA capacity of outdoor / indoor type transformer complete all as specified and as directed.

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.

S & F in repairs silica gel breather containing 500 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.

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.

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.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-70 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-35 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-95 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-50 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-120 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-185 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-240 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-300 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

S & F in repairs compression type aluminium tubular terminal ends for crimping to aluminium conductors for XLPE cable of designation CAAX-150 as per IS 8309: 1993 and fixing with cable and transformer or LT Panel complete all as specified and as directed.

Carrying out field test of transformer oil 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.

S & F in repairs temperature gauge of range 0⁰ to 200⁰C for indication of temperature rise in transformer oil for transformers upto 2000 kVA capacity complete all as specified and as directed.

S &F in repairs pressure relief valve/ explosion vent for operating pressure of 75 kPa (operating tolerance 7 kPa), outdoor type, base made of cast aluminium, diaphragm made of stainless steel, operating temperature 0⁰C to 100⁰C, automatic valve resetting with limit switch, automatic operation, contact rating 240 V, 10 Amps (AC) , Contacts (1 NO +1 NC), IP67 protection 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 oil level indicator clean prismatic type suitable for transformer upto 2000 kVA with necessary gasket etc. complete all as specified and as directed.

M & L for cross arms, bracings, supports, clamps, back plates and stay clamp 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 applying two coats of aluminium paint over a coat of red oxide primer complete all as specified and as directed.

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 25 mm X 4 mm galvanised mild steel strip complete all as specified and as directed.

S & F cable-end box low voltage size, suitable for nominal system voltage of 1.1 kV, having adequate size to maintain clearance between Phase to Phase and Phase to earth, made of cold reduced low carbon steel sheet of minimum thickness 3.15 mm and fixing with transformers of capacity upto 400 kVA with brass cable glands including two coats of synthetic enamel paint over red oxide zinc chrome primer complete all as specified and as directed.

Supply and fix in repairs metal oxide surge arrester without gap for AC system as per IEC 60099-4: 2014, outdoor type, polymer housing, single column and single phase construction, station class, heavy duty, nominal discharge current 20 kA, switching impulse discharge current 2 kA, repetitive charge transfer rating (Qrs) more than 2.4 C, thermal energy rating (Wth) more than 10 kJ/kV, nominal system voltage 22 kV, highest system voltage 24 kV, rated voltage of arrester 18 kV, continuous operating voltage 14.4 kV, temporary overvoltage (20.30 kV for 1 s, 19.0 kV for 10 s, 17.5 kV for 100 s), rated short circuit current 20 kA, low short circuit current 600 A, insulation withstand level (lightning impulse voltage 1.2/ 50 µs) 125 kV, lightning impulse residual voltage (8/20 µs) at nominal discharge current maximum 47 kV, switching impulse residual voltage (30/60 µs) at switching impulse discharge current maximum 41 kV, high current impulse withstand capability (4/10 µs) 100 kA, minimum creepage distance 600 mm 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 25 mm X 4 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.

Disconnecting, taking out old unserviceable under ground cable of rated voltage 11 kV, nominal cross sectional area of main conductor 95 sqmm, upto 4 core, any type from trenches including taking out concrete cable cover/ bricks etc. including removing materials to store for keeping in safe custody or for reuse or for taking credit complete all as specified and as directed.

Supply, laying and testing cross linked polyethylene (XLPE) insulated, PVC sheathed cables for working voltages 6.35 kV/ 11 kV, three phase, earthed system, 3 core, screened, armoured power cable, 95 sqmm of nominal area of conductor, aluminium conductor, ISI marked as per IS 7098 (Part-II): 2011 laid in trenches or under floors making all connections with necessary glands lugs bushing complete all as specified and as directed.

Disconnecting, taking out old unserviceable under ground cable of rated voltage 1100 V, nominal cross sectional area of main conductor 185 sqmm, upto 4 core, any type from trenches including taking out concrete cable cover/ bricks etc. including removing materials to store for keeping in safe custody or for taking credit complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 185 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through pipe laid under floors/roads and in trenches, through concealed GI pipe along wall etc. complete all as specified and as directed.

S & F XLPE cable end termination, heat shrinkable, outdoor type complete with jointing material and accessories suitable for voltage 6.35 kV/ 11 kV (Earthed), 3 core, 50 sqmm to 95 sqmm complete all as specified and as directed.

S & F XLPE cable end termination, heat shrinkable, outdoor type complete with jointing material and accessories suitable for voltage 6.35 kV/ 11 kV (Earthed), 3 core, 120 sqmm to 185 sqmm complete all as specified and as directed.

S & F cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and as directed.

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

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft/ loose soil complete all as specified and as directed.

Excavating in trenches not exceeding 1.5 m wide and exceeding 1.5 m but not exceeding 3.0 in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or not exceeding 10 sqm on plan and exceeding 1.5 m but not exceeding 3 m in depth and getting out in soft/ loose soil complete all as specified and as directed.

Supply & spreading in trenches dry river sand cushioning to underground cable in trenches including spreading, levelling, hand punning down complete all as specified and as directed. Note:- Depth of sand cushioning will be measured after punning down and levelling the sand properly.

Laying only bricks or cable protection cover any size for cable protection cover laid flat and dry in trenches over the cable perpendicular to the direction of cable complete all as specified and as directed.

M & L for laying of bricks locally available sub class 'B' bricks, non-modular sizes as per IS 1077: 1992 for cable protection cover laid flat and dry in trenches over the cable perpendicular to the direction of cable complete all as specified and as directed.

Supply & laying unreinforced precast concrete cable cover class HV type 1, flat shape, dimension 300 mm X 180 mm X 40 mm as per IS 5820: 1970 complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point

M & L for cleaning, upkeeping and maintaining of MES installations / campus/ outside the periphery of transformer platform/ two poles structure/ four pole structures 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) including carrying away the rubbish to a distance of not exceeding 50 m away complete all as specified and as directed. Note: - The contractor shall clean, upkeep and maintain the premises during the contract period and the payment shall be made only once for entire contract period. The measurement shall be in sqm.

Taking down cement plaster on stone/brick/concrete surfaces including racking out joint, hacking for key, scrubbing down with water complete all as specified and as directed.

Material and labour for plastering 10 mm thick on fair faces of brick work or concrete surfaces (on vertical surfaces) in cement mortar 1:4 finished even and fair complete all as specified and as directed.

Supplying & laying including taking down in trenches, in road cutting and along pole 80 mm nominal bore, light grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

DABAA CONTRACTORS (BID ID -3079050)

m/s Rajesh Kumar (BID ID -3065270)

Raman Electric Trading Co (BID ID -3072911)