CWE/AF AMB/AMB-57/2020-21 SPECIAL REPAIR TO CERTAIN E M EXTERNAL WORKS SERVICES AT SITE -IV UNDER GE (AF) AMBALA

Amount

Material and labour in replacement earthing complete with galvanized steel earth plate electrode 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 mtr below ground level, with top edge of earth plate not less than 1.5 mtr below ground level, connected to GI earth lead strip 32 mm x 6 mm upto 7.5 mtr long by means of bolts, nuts, check nuts and washers of galvanized iron and connection to earthing test point & earth dolly & watering pipe GI 20 mm bore, light grade including protection pipe GI light grade 40mm bore , wire mesh, funnel,lugs, salt, charcoal dust, excavation & earthwork in soft/losse soil and refilling pit chamber with PCC 1:2:4 type B1 using 20 mm graded mechnically crushed stone aggregates , RCC 1:2:4 type B-1 using 20 mm graded mechnically crushed stone aggregates pit cover slab 50 mm thick reinforced with 8 mm dia TMT bars @ 15 cm c/c both ways including necessary form work all as shown in electrical plate No 3 of SSR part-I (2009), including testing on completion at site complete all as specified and directed.

Material and labour in replacement earthing complete with copper earth plate electrode 60 cm X 60 cm X 3.15 mm thick buried vertically in ground to depth not less than 2.25 mtr below ground level, with top edge of earth plate not less than 1.5 mtr below ground level, connected to copper earth lead strip 25 mm x 3mm upto 7.5 mtrs long by means of bolts, nuts, check nuts and washers of galvanized iron and connection to earthing test point & earth dolly & watering pipe GI 20 mm bore, light grade including protection pipe GI light grade 40mm bore , wire mesh, funnel,lugs, salt, charcoal dust, excavation & earthwork in soft/losse soil and refilling pit chamber with PCC 1:2:4 type B1 using 20 mm graded mechnically crushed stone aggregates , RCC 1:2:4 type B-1 using 20 mm graded mechnically crushed stone aggregates pit cover slab 50 mm thick reinforced with 8 mm dia TMT bars @ 15 cm c/c both ways including necessary form work all as shown in electrical plate No 3 of SSR part-I (2009), including testing on completion at site complete all as specified and directed. Notes for Srl item 1.00 & 2.00 :- (i) Any variation in length of earth lead and protection pipe of earth lead shall be adjusted through DO. (ii) On testing if the earth resistance is not obtained, earthing will be generated at No extra cost, till the desired earth resistance is obtained. (iii) The PCC chamber shall be constructed atleast 1.5 mtr away from the earth electrode & watering pipe.

Supplying, installation, testing and commissioning in replacement of a set of maintenance free tripod chemical earthing system consisting of 3 Nos. of Copper Bonded Earth Rod of 13 mtr length, 17.2 mm dia made of high tensile low carbon steel circular rods, molecularly bonded with 99.9% electrolytic grade copper on outer surface (minimum copper bonding thickness-250 microns) with exothermically jointed copper bus bar of 150x25x3mm for long lasting and connection . Each copper bonded rod and the exothermically jointed busbar both should be CPRI tested on at least 25KA Fault current to ensuring the high current carrying capacity of the system and earth rod should be certified by laboratories confirming to comply with UL467 international standard for grounding and bonding equipment. Each rod should be used with minimum 50kg earth enhancing compound that should be ROHS tested and have passed. Resisitivity test of the earth enhancing compond should be less than 0.05 ohm meter - an international standard for earth Enhancement compound by NABL accredit Lab complete all as specified & directed by Engineer - in- charge.

Notes for item No 3.00 : (i) The rate for interconnection of tripod earth with copper strip of size 20mm x 3mm and poly carbonate earth pit cover -03 Nos. shall deemed to be included in quoted rates. (ii) Set of three electrode to be used in for LPS for resistance below 1 Ohms in any kind of soil. (iii) Maintaining of earthing resistance less than 1 Ohms for five year will be the responsibility of the contractor and no extra cost payment will be paid for this. The undertaking/Guarantee in this regard shall be given by contractor. (iv) The testing of earth resistance will be done in presence of MES rep and user and results will be recorded in register duly signed by user and Engg in Charge. contractor will arrange all necessary T&P for testing of earth and contractor will be fully responsible for testing of earth resistance, maintaining the record and maintain the earth value with in permissible limit.

Supply and fixing in replacement 1100 volts, grade heavy duty PVC insulated aluminium conductor served with inner sheathed of PVC tape and overall PVC sheathed in service connection suspended by insulating hanger not more than 1 mtr apart including 4 mm dia suspension wire one twin core cable flat of size 16 sqmm complete all as specified and directed.

Supplying, laying, jointing, testing and commissioning in replacement LT XLPE electric cable, 1100 Volts grade, heavy duty, PVC insulated and sheathed armoured electric power cable with stranded aluminium conductor, of cross sectional area 16 Sqmm 4 core conforming to IS- 7098 (Part I) 1988 as in trenches or along the wall/pole through pipe etc, complete all as specified and directed.

Supplying, laying, jointing, testing and commissioning in replacement LT XLPE electric cable, 1100 Volts grade, heavy duty, PVC insulated and sheathed armoured electric power cable with stranded aluminium conductor, of cross sectional area 25 Sqmm 4 core conforming to IS- 7098 (Part I) 1988 as in trenches or along the wall/pole through pipe etc, complete all as specified and directed.

Supplying, laying, jointing, testing and commissioning in replacement LT XLPE electric cable, 1100 Volts grade, heavy duty, PVC insulated and sheathed armoured electric power cable with stranded aluminium conductor, of cross sectional area 35 Sqmm 3.5 core conforming to IS- 7098 (Part I) 1988 as in trenches or along the wall/pole through pipe etc, complete all as specified and directed.

Supplying, laying, jointing, testing and commissioning in replacement LT XLPE electric cable, 1100 Volts grade, heavy duty, PVC insulated and sheathed armoured electric power cable with stranded aluminium conductor, of cross sectional area 50 Sqmm 3.5 core conforming to IS- 7098 (Part I) 1988 as in trenches or along the wall/pole through pipe etc, complete all as specified and directed.

Supplying, laying, jointing, testing and commissioning in replacement LT XLPE electric cable, 1100 Volts grade, heavy duty, PVC insulated and sheathed armoured electric power cable with stranded aluminium conductor, of cross sectional area 70 Sqmm 3.5 core conforming to IS- 7098 (Part I) 1988 as in trenches or along the wall/pole through pipe etc, complete all as specified and directed.

Supplying, laying, jointing, testing and commissioning in replacement LT XLPE electric cable, 1100 Volts grade, heavy duty, PVC insulated and sheathed armoured electric power cable with stranded aluminium conductor, of cross sectional area 95 Sqmm 3.5 core conforming to IS- 7098 (Part I) 1988 as in trenches or along the wall/pole through pipe etc, complete all as specified and directed. Note for Srl item No 5.00 to 10.00:- Excavation & earth work, sand cushioning, protection pipes, end termination joints & protection covers shall be measured and paid separately.

M&L painting of PCC/steel poles, 9/11 mtr long along the road upto 1.5 mtr height from pedestal, with two coat of synthetic enamel paint in 5 strips each of 30cm height, in airforce colour including painting of pole coping with black paint and writting pole numbers with white paint on black circular base including marking of HT /LT with painting of pole cross arms bracket with two coats of aluminium paint over a coat of red oxide primer complete all as specified and directed.

Excavation in trenches not exceeding 1.5mtr wide and not exceeding 1.5mtr in depth for foundation etc or for walls, shafts, manholes not exceeding 10 Sqm on plan or for laying pipes/cables etc and getting out, in soft/loose soil complete all as directed.

Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25 cm thick each in soft/loose soil complete all as specified and as directed.

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

Material and labour for Sand cushioning to cable with a layer of sand 8 cm deep before laying the cable and 15 cm deep after laying the cable (punned down to 18 cm depth after laying and stretching of cable ) complete all as specified and directed.

Supply and laying old size, sub class 'B' bricks, designation 75, laid flat for protection of cable , adjacent to each other, perpendicular to central axis of cable complete all as specified and directed.

Supply & installation of bus bar chamber out door type of size 1.0mtr x 0.75mtr x 0.30mtr, floor mounted, factory made out of 40mm x 40mm x 6mm angle iron frame with legs 3 feet long and 3.15mm CRCA steel sheet, double door front with locking arrangement including four Nos aluminium bus bar of rating 200 amps on base insulators with one No incomming MCCB 160 Amps, 415 volt, 25 kA, 4 pole, the busbar chamber shall be painted with one coat of primer of red oxide paint and finished with two coats of synthetic enamel paint complete all as specified and directed.

M&L in replacement danger notice plate of 1.6 mm thick mild steel sheet,vitreous enamelled white,with letters ,figures and conventional skull and bones in signal red colour, fixed with MS clamps ,bolts and nuts, for LT of 20 cm x 15 cm size as per SSR Part-I 2009 complete all as specified and as directed.

M&L in replacement danger notice plate of 1.6 mm thick mild steel sheet,vitreous enamelled white,with letters , figures and conventional skull and bones in signal red colour, fixed with MS clamps ,bolts and nuts, for HT of 25 cm x 20 cm size as per SSR Part-I 2009 complete all as specified and directed.

S&F LED street light fitting 90 watt, 230 volt, 50Hz fixed on LT/high mast pole, suitable for opertion over voltage range of 140 volt to 270 volt duly housed in pressure die cast aluminium housing comprising with LED with individual optical lens, electronic driver with IP 66 protection and impact resistance of IK07 including taking out old light fitting complete all as specified and directed.

S&F LED street light fitting 120 watt, 230 volt, 50Hz fixed on LT/high mast pole, suitable for opertion over voltage range of 140 volt to 270 volt duly housed in pressure die cast aluminium housing comprising with LED with individual optical lens, electronic driver with IP 66 protection and impact resistance of IK07 including taking out old light fitting complete all as specified and directed.

S&F security light fitting bracket made of GI Pipe, medium grade, 25 mm bore, bend to shape, of length 1.2 mtr long including flat iron clamp made of FI 50x6 mm , nuts, bolts, washers etc duly painted with two coats of synthetic enamel paint over & including one coat of red oride primer complete all as specified and directed.

S&F in replacement sheet metal enclosure for MCB Distribution board, 415 volt, triple pole and neutral, 8 way, double door type, flushed inside the wall including making good the disturbed surfaces complete all as specified and directed.

M&L sub main wiring with two single core FRLS,PVC insulated cable,1100 volts grade, 6 sqmm nominal cross sectional area stranded copper conductor and one single core green FRLS, PVC insulated 4 sqmm stranded copper conductor earth continuity cable drawn through with and including non metallic rigid PVC conduit medium grade not less than 25 mm bore including accessories concealed in wall/floors/roof etc including cutting chasing in wall/ceiling and making good the disturbed surfaces to match the existing surface complete all as specified and as directed.. Note :- Two runs of 6 sqmm cable alongwith One run of 4 sqmm cable as earth wire with conduit shall be measured as one length.

S&F in replacement MCB 100 Amp, TPN, 10 kA , 415 volts with 'B' curve complete all as specified and directed.

S&F MCB 63 Amp, SPN, 10 kA , 240 volts with 'B' curve complete all as specified and directed.

M&L in replacement GI pipe 80 mm bore , light grade as in trenches, under road,under floor, fixed to wall with fixing arrangement with suitable size of MS clamps made from 40x3 mm size flat iron including nuts,bolts & washers or along the pole with fixing arrangement etc for cable protection complete all as specified and directed .

M&L in replacement GI pipe 50 mm bore , light grade as in trenches, under road,under floor, fixed to wall with fixing arrangement with suitable size of MS clamps made from 40x3 mm size flat iron including nuts,bolts & washers or along the pole with fixing arrangement etc for cable protection complete all as specified and directed .

S&F in replacement bollard light fitting LED based with aluminium pipe housing with glare free PMMA diffuser IP 65 H-800mm capacity 10 watt complete with connecting cable etc complete all as specified and directed

M&L in replacement earth continuity conductor or earthing lead fixed to wall or burried in ground or drawn in conduit/pipe or fixed to pole or any other indicated situation for loop earthing etc as required copper strip 20mm x 3mm complete all as specified and directed

Deduction of Total of Sch of credit amount Rs 36380.00

Bairagi Builders

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Esha Engineers

sanjeev enterprises

singh traders

Raman Electric Trading Co

UNITED ENGINEERING CORPORATION

Garg Engineers