REPAIR TO HT ELECTRICAL INSTALLATIONS INCLUDING CABLES, PANELS, TRANSFORMERS AT AIR FORCE STATION CHANDIGARH

Amount

Excavation in trenches in soft/loose soil not exceeding 1.5 metre wide and not exceeding 1.5 metre deep for laying/taking out of cables and foundation of poles etc. and getting out, complete all as specified and directed.

All as per item No. 1.00 here-in-before but depth exceeding 1.5 metre but n.exc 3.0 metre, complete all as specified and directed.

Returning, filling in trenches (soil), including spreading, leveling and well ramming in layers not exceeding 25 cm thick, complete all as specified and directed.

Removal of surplus excavated soil to a distance not exceeding 50metre and depositing where directed at a level not exceeding 1.5metre above the starting point, complete all as specified and directed.

Material and labour, sand cushioning with a layer of dry river sand, 80mm thick before laying of cable and 150mm thick (punned down to 100mm thick) after laying of cables, in trenches/ducts, complete all as specified and directed. Note : Punned down thickness (overall 18cm), shall be considered for measurement and payment.

Supplying and laying, factory made unreinforced precast concrete cable cover HV type-1, flat, of size 300x180x40mm, laid flat and dry in trenches over the cable for protection, length perpendicular to the direction of cable adjacent to each other, complete all as specified and directed.

Material and labour, plain cement concrete (1:4:8) type D-2, using 40mm graded crushed / broken stone aggregate as in foundation, filling & mass concrete, complete all as specified and directed.

Material and labour, plain cement concrete (1:3:6) type C-1 using 20mm graded crushed stone aggregate, for coping of pole including weathering, slightly rounded or chamfered angle and throating, complete all as specified and directed.

Taking down GI pipe any size from trenches/poles, complete all as specified and directed.

Supply and laying / fixing , GI pipe light grade 80mm dia bore for cable protection fixed to pole/wall or laid under floor/road/pavement, complete all as specified and directed. Note (s) : (i) MS clamps, nuts, bolts etc where required shall be measured and paid separately. (ii) Boring of holes under road etc. shall be measured and paid separately.

Supply and laying / fixing , GI pipe light grade 50mm dia bore for cable protection fixed to pole/wall or laid under floor/ road/ pavement, complete all as specified and directed. Note (s) : (i) MS clamps, nuts, bolts etc where required shall be measured and paid separately. (ii) Boring of holes under road etc. shall be measured and paid separately.

Taking out / down old existing HT 11000volt grade cables, size upto 120Sqmm, aluminium conductor 3core, XLPE, armoured, laid in trenches, including bricks/ Precast PCC cable cover for protection a precast concrete cable cover , complete all as specified and directed.

Supply, laying, jointing, testing and commissioning of High Tension (HT), 11000Volts (earthed) grade, XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) with stranded aluminum conductor, cross sectional area 95Sqmm, 3core under ground cable including both side connection with cable lugs etc, laid in trenches, along poles or passing through pipes or laid under floor or through walls etc, complete all as specified and directed. Note : Excavation and earth work, sand cushioning and precast concrete cable cover for protection of cable shall be measured and paid separately.

Supply, laying, jointing, testing and commissioning of High Tension (HT), 11000Volts (earthed) grade, XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) with stranded aluminum conductor, cross sectional area 120Sqmm, 3core under ground cable including both side connection with cable lugs etc, laid in trenches, along poles or passing through pipes or laid under floor or through walls etc, complete all as specified and directed. Note : Excavation and earth work, sand cushioning and precast concrete cable cover for protection of cable shall be measured and paid separately.

Supply, jointing & testing, indoor end termination joint kit (Heat shrinkable) complete with jointing material and accessories suitable for 11KV grade, HT, underground XLPE insulated armoured aluminium conductor, 3core 50 to 95Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, indoor end termination joint kit (Heat shrinkable) complete with jointing material and accessories suitable for 11KV grade, HT, underground XLPE insulated armoured aluminium conductor, 3core 120 to 185 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, outdoor end termination joint kit (Heat shrinkable) complete with jointing material and accessories suitable for 11KV grade, HT, underground XLPE insulated armoured aluminium conductor, 3core 120 to 185Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, straight through joint kit (Heat shrinkable) complete with jointing material and accessories suitable for 11KV grade, HT, underground XLPE insulated armoured aluminium conductor, 3core 120 to 185Sqmm size cable, complete all as specified and directed.

Dismantling cross arms of MS channel or angle channel or angle section, etc, and removal, complete all as specified and directed.

Material and labour, Cross arms, bracing, supports, clamps and back plates, fabricated from structural steel section Fe-290 grade E-165 quality including nuts, bolts, washers, and welding, bending cold or hot, drilling holes for bolts, in any shape or size as directed including two coats of alminium paint over a coat of red oxide primer, complete all as specified and directed.

Material and labour, switch air break, triple pole, gang operated, mechanically operated, mounted on insulators and steel frame, with operating mechanism worked from ground level including drop out fuse unit assembly 11KV grade, for current rating upto 400Amps suitable for 11000 volts grade, AC supply, including taking down old & removal, complete all as specified and directed.

All as per item No. 21.00 here-in-before but 200Amps, complete all as specified and directed.

Dismantling, lightning arresters, expulsion type complete with all fittings, distrbution class, discharge capacity 30kilo Amps, long duration current impulse to withstand 250AP/2000Seconds & energy dissipation capacity 2KJ/KV, suitable for 11000V grade, complete all as specified and directed.

Material and labour, Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 Kilo Amps long duration current impulse to withstand 250AP/2000Seconds & energy dissipation capacity 2KJ/KV, suitable for 11000volts grade system, complete all as specified and directed.

Dismantling air break gang operated switches verical/horizontal mounted including insulators and operating mechanism for repair/replacement of broken/worn out components and insulators etc or carrying to MES store (spare/components for replacement to be provided free by department)

Supply and fix, male moving contact 400Amp capacity, 11000volts grade for GOD switch (as per existing make), fixed in position, testing & commssioning, including taking out old & removal, complete all as specified and directed.

Supply and fix, female moving contact 400Amp capacity, 11000volts grade for GOD switch (as per existing make), fixed in position, testing & commssioning, including taking out old & removal, complete all as specified and directed.

Supply and fix, tinned copper Jumper of capacity 400Amps, 11000volts grade, for GOD switch (as per existing), fixed in position, testing & commssioning, including taking out old & removal, complete all as specified and directed.

Finding/locate fault in HT 11KV grade cable of any size and depth, within 1.0Km length or more with the help of cable fault locator instrument of latest design, cable laid in trenches, floor or pipe and rectification the same, complete all as specified and directed. Note:- (i) The fault shall be rectified within 6hrs from receiving complaint telephonically/SMS by JE or AGE E/M , if the fault is not rectified within 6hrs, the penalty of Rs. 500.00 per hour shall be recovered from the contractor. (ii) The number of fault occurred within 1KM length in same location shall be treated as one fault.

Material and labour, earthing complete with GI earth plate electrode of size 600mm x 600mm x 6mm thick burried directly in ground vertically (depth of pit not less than 2.25m below normal ground level), with top edge of earth plate not less than 1.5m below normal ground level, earth plate surrounded from all sides by 15cm thick packed alternate layers of charcoal dust and common salt, electrode connections using galvanized iron strip of size 25mmx4mm thick (upto body of equipment) by means of nuts, bolts, check nuts & GI washers, connected to main switch board or main control board or test point, protected by galvanized iron pipe light grade 40mm dia bore, and watering pipe 20mm dia bore GI light grade with funnel & wire mesh including all necessary excavation & earth work, PCC chamber in PCC (1:2:4) type B-1 & RCC cover, all as shown in electrical plate No 3 of MES Schedule Part-I (2009), testing on completion, complete including taking out the existing u/s earthing materials all as specified and directed.

Note(s) :- (i) RCC pit cover shall be pre-cast of RCC (1:2:4) type B-1, 80mm thick reinforced with XPM not less than 4Kg/Sqm. (ii) PCC chamber shall be constructed 500 mm away from the edge of earth pit. (iii) Rate shall include GI strip and protection pipe of length 7.5m, excess beyond 7.5m length required at site shall be measured and paid separately. (iv) Earth resistance should be less than 3Ohm. In case the test results are not found below 3Ohm, complete earthing will be redone without any extra cost to Govt.

Material and labour, earthing complete with copper earth plate electrode of size 600mm x 600mm x 3.15mm thick burried directly in ground vertically (depth of pit not less than 2.25m below normal ground level), with top edge of earth plate not less than 1.5m below normal ground level, earth plate surrounded from all sides by 15cm thick packed alternate layers of charcoal dust and common salt, electrode connections using copper strip of size 20mmx3mm thick (upto body of equipment) by means of brazing/welding connected to main switch board or main control board or test point, protected by galvanized iron pipe light grade 40mm dia bore, and watering pipe 20mm dia bore GI medium grade with funnel & wire mesh including all necessary excavation & earth work, PCC chamber in PCC (1:2:4) type B-1 & RCC cover, all as shown in electrical plate No 3 of MES Schedule Part-I (2009), testing on completion, complete including dismantling of existing earthing all as specified and directed.

Note(s) :- (i) RCC pit cover shall be pre-cast of RCC (1:2:4) type B-1, 80mm thick reinforced with XPM not less than 4Kg/Sqm. (ii) PCC chamber shall be constructed 500 mm away from the edge of earth pit. (iii) Rate shall include GI strip and protection pipe of length 7.5m, excess beyond 7.5m length required at site shall be measured and paid separately. (iv) Earth resistance should be less than 3 Ohm. In case the test results are not found below 3 Ohm, complete earthing will be redone without any extra cost to Govt.

Material and labour, Earth continuity conductor or main earthing lead or lightning conductor, 25mmx4mm GI strip, fixed to wall on batten with saddles and fixing screws, PVC/ Porcelain insulators etc. or recessed or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required, fixed in replacement, complete all as specified and directed.

Material and labour for copper strip 20x3.15mm as in earth continuity conductor , complete all as specified and directed.

Supply and fix, Danger notice plate of 1.6mm thick mild steel sheet, vitreous enameled 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, 25x20cm size, complete all as specified and directed.

Supply and fix in replacement, fuse carrier 400Amps capacity, 11000volts grade for GOD switch (as per existing), fixed in position, testing and commissioning, complete all as specified and directed.

Supply and fixing/erecting in true vertical position, steel tubular pole, swaged, type 410-SP-55 (11m long), HT, complete with cast iron base plate of size 300mmx300mm, finial taper plug, bolts, nuts, washer and screws including painting with two coats of aluminium paint over one coat of red oxide primer on all exposed surfaces and tarring with black bituminous paints to portion embedded in PCC including numbering of poles with two coats of synthetic enamel paints, fixed in replacement, complete all as specified and directed. Note : Earth work and PCC shall be measured and paid separately.

Material and labour, factory made (CPRI approved), HT bus bar chamber, size 1500mmx1000mmx500mm, cubical, outdoor type (Kiosk), weather proof, dust proof and vermin proof, IP-65 protection, fabricated out of 3.15mm thick MS CRCA sheet mounted on frame of appropriate size angle iron, welded on 50mmx50mmx6mm size angle iron frame & having four Nos legs made out of 50mmx50mmx6mm size of angle iron - 60cm long each welded below frame, front & back openable with front double door having locking arrangements, bottom space for cable entry, provision of glands, with aluminium bus bars 630Amps rating - 02 set (set of three) mounted on 6Nos. HT epoxy type insulators, 11000volts grade, suitable size (not less than 130mmx70mm), duly sleeved with relevant colour code insulation, including epoxy powder coated over anti corrosive treatment, legs embedded in ground in PCC (1:3:6) bed blocks of size 30cmx30cmx30cm, fixed in replacement, complete all as specified and directed.

Supply and fix in replacement,HT bus bar insulators epoxy type 130mmx70mm size, 11000V, complete all as specified and directed.

Material and labour for opening HT, 11 KV, VCB front and back side complete after taking shutdown, cleaning, dusting inside & out side of VCB greasing oiling the mechanical parts of VCB and other parts of VCB as per required at side and including testing commissioning complete.

Taking down of existing unserviceable parts of VCB 630Amps after taking out shut down and replacement of the followings:-

Replacement of indicating lamps, complete all as specified and directed.

Replacement of internal wiring for indicating lamps, complete all as specified and directed.

Replacement of closing coil, complete all as specified and directed.

Replacement of tripping coil, , complete all as specified and directed.

Replacement of vacuum bottle, , complete all as specified and directed.

Replacement of Jaw contact , complete all as specified and directed.

Replacement of protection relay , complete all as specified and directed.

Replacement of mechanism , complete all as specified and directed.

Replacement of spout , complete all as specified and directed.

Replacement of rack in/out gear , complete all as specified and directed.

Replacement of auxillary switch , complete all as specified and directed.

Replacement of TNC switch , complete all as specified and directed.

Replacement of relay protection 3 pole , complete all as specified and directed.

Replacement of cradle contact, complete all as specified and directed.

Material and labour for opening 11 KV, RMU front and back side complete after taking shutdown, cleaning, dusting inside & out side of RMU and other parts of as per required at side and including testing commissioning complete.

Taking down of existing unserviceable parts of RMU 630/400Amps after taking out shut down and replacement of the followings:-

Replacement of K mechanism, complete all as specified and directed.

Replacement of N mechanism, complete all as specified and directed.

Replacement of charging motor, complete all as specified and directed.

Replacement of tripping coil, complete all as specified and directed.

Replacement of closing coil, complete all as specified and directed.

Replacement of main bushing, complete all as specified and directed.

Supply and filling and testing SF-6 gas, complete all as specified and directed.

Replacement of protection relay, complete all as specified and directed.

Supply and filling, silica gel to transformers including taking out old gel, complete all as specified and directed.

Supply and fix, breather assembly complete with fresh silicagel, for transformer of capacity 63 KVA to 100 KVA, complete all as required and directed.

Supply and fix, breather assembly complete with fresh silicagel, for transformer of capacity 160 KVA to 300 KVA, complete all as required and directed.

Supply and fix in replacement, temperature gauge complete all as required and directed.

Material and labour for preparation ofold rusted steel surfaces of structure four pole HT swaged poles (of any length) and applying one coat of synthetic enamel paint up to 1.2 mtr height as per the existing pattern above the PCC coping and one coat of aluminium paint beyound 1.2 mtr height (for the rest portion) including cross arms brackets and re-writing pole numbers complete all as required and directed by Engineer-in-Charge.

Note: The Total amount shall subject to adjustment of credit of Rs. 2,21,163.50 for old Materials as per Schedule of Credit.

R N Enterprises

Raman Electric Trading Co

Bharat Enterprises

shivrefrigeration