REPAIR AND MAINTINACE OF HT/LT FEDDER PILLAR , UG CABLE, EARTHING AND SWITCH GEARS AT AF STATION CARNICOBAR

Amount

Excavation in trenches n. exc. 1.5 mtr depth for foundation and getting out for laying of pipes in any type of soil complete all as ditected by Engineer in Charge.

Returning filling in and including spreading levelling, watering and well ramming in layers not exc. 25 cm in thickness complete all as directed by Engineer in Charge.

Removing excavated soil/ matrials to distance not exceeding 50mtr and depositing where directed at a level not exceeding 1.5mtr above from stsrting point complete all as directed by Engineer in Charge.

M&L for 50mm dia galvanised iron pipe light grade as in cable protection, laid in trenches or fixed on wall surface complete all as specified.

M&L for XLPE insulated , screened ,PVC bedded, galavnised steel strip or wire armouered, electric power cable (heavy duty) with alumnium conductor, 1100 volts, grade cross sectional area 300 sqmm, 3.5 core complete including taking out existing unserviceable cable all as specified and directed by Engineer in Charge.

All as per item no. 5 here in before but cable of 50 sqmm, 3.5 core

All as per item no. 5 here in before but cable of 70 sqmm, 3.5 core

All as per item no. 5 here in before but cable of 16 sqmm, 2 core

All as per item no. 5 here in before but cable of 35 sqmm, 3.5 core

All as per item no. 5 here in before but cable of 25 sqmm, 4 core

All as per item no. 5 here in before but cable of 16 sqmm, 4 core

M&L for plain cement concrete (1:3:6) type C2 using 40mm graded stone aggregate as in foundation for pole complete all as directed by Engineer in Charge.

M&L for plain cement concrete (1:2:4) type B1 using 20mm graded stone aggregate as in coping of pole,finished even and smooth without using extra cement complete all as directed by Engineer in Charge.

Dismantling of RCC pole/ Struts of any size and type including breaking of concrete ,cutting of mild steel bars of any size below to ground 60cm depth and removing dismantled materials to a distance not exceeding 50 mtr all as directed by Engineer in Charge.

M&L for spreading the graded coarse aggregate of nominal size 40-63mm in transformer yard /four pole/twopole structure including cleaning the area and removing all vegetation in yard all as directed by Engineer in Charge.

M&L for sand cushioning for UG cable / in transformer yard including spreading, levelling & well raming , consolidation complete all as directed by Engineer in Charge.

M&L for precast concrete block masonry in (1:3:6) type C1 using 20mm graded stone aggregate solid block exceeding 10 cm in width and setting in cement mortar (1:4) all as directed by Engineer in Charge.

M&L for 10mm thick rendering in cement mortar (1:4) on fair face of brick or concrete surfaces finished even and smooth without using extra cement all as directed by Engineer in Charge.

M&L for preparation old treated steel surface of any description exceeding 10cm width or girth and applying one coat of aluminum paint complete all as directed by Engineer in Charge.

M&L for preparation old treated steel surface of any description by complete removal of existing treatment exceeding 10cm width or girth and applying two coat of synthetic enamel paint over a coat of red oxide primer complete all as directed by Engineer in Charge.

M&L for Danger plate 200x150mm of 1.6mm thick mild steel sheet vitreous enamelled white with letter , figure and conventional skul and bone in signal red colour and fixed with GI clamp and GI nut bolts complete all as directed by Engineer in Charge.

M&L for Danger plate 200x200mm of 1.6mm thick mild steel sheet vitreous enamelled white with letter , figure and conventional skul and bone in signal red colour and fixed with GI clamp and GI nut bolts complete all as directed by Engineer in Charge.

M&L for mild steel plain or chequered plate 5mm thick suitable for duct cover to required size all as directed by Engineer in Charge.

M&L for double wall corrugated pipe (DWC) conforming to IS:19430 Part-1 of size 50mm outer dia and 38 mm inner dia complete all as directed by Engineer in Charge.

M&L for double wall corrugated pipe (DWC) conforming to IS:19430 Part-1 of size 63mm outer dia and 50 mm inner dia complete all as directed by Engineer in Charge.

M&L for double wall corrugated pipe (DWC) conforming to IS:19430 Part-1 of size 110mm outer dia and 95 mm inner dia complete all as directed by Engineer in Charge.

M&L for double wall corrugated pipe (DWC) conforming to IS:19430 Part-1 of size 315mm outer dia and 272 mm inner dia complete all as directed by Engineer in Charge.

Cutting the existing road /hard standing for laying of cable including making good with the materials for 100 mm thick PCC (1:2:4) type B2 using 40mm graded stone agregate finished even and smooth complete all as directed by Engineer in Charge

M&L for writing letters (Blaock, roman, Intalian or Indian) not exceeding 8CM height on concrete pole / steel pole surface for marking pole number in block back ground in white colour letters / numbers in three digit(LT/001) by synthetic enamel paint and size / shape of letters, back ground all as directed by Engineer in Charge.

M&L for Electric insulating mat as per IS:15652:2006 antiskid type flame retardance, tnsile strength 15N/Sqmm and insulation resistance 1000000 mega ohm minimum and size of mat shall be 1000x3mm thick suitable for up to 33 KV RMS Voltage all as directed by Engineer in Charge.

Cutting /opening of cement concrete block masnary wall in any description for door/windows or other opening with or without reveals or enlarging existing opening trimming surface to receive rendering etc. all as directed by Engineer in Charge.

M&L for MCCB ,4 pole 25KA breaking capacity , 200 amp including taking out existing MCCB all as specified and directed by Engineer in Charge.

All as per item no. 32 here in before but MCCB of 125 amp

All as per item no. 32 here in before but MCCB of 100 amp

All as per item no. 32 here in before but MCCB of 63 amp

M&L for copper sulphate for enhance the conductivoty of soil by pouring water all as directed by Engineer in Charge. Note:- Earth work shall be measured and paid seperetely and qty of copper sulphate to each earthing shall be as directed by Engineer in Charge.

M&L for common salt required for enhance of the conductivity of soil all as directed by Engineer in Charge

M&l for copper strip of size 20x3.15mm with copper saddles and fixed copper screws etc all as directed by Engineer in Charge.

M&l for aluminium strip of size 25x 3.15mm with saddles and fixed screws etc all as directed by Engineer in Charge.

M&L for testing of earth resistance value monthly/quaterly/half yearly of any type earth pit in any locations with qualified person including earth resistance testing equipment and recod the value of earth resistance as per format provided by Engineer in Charge and submit accordingly. Note:- All the equipement and other item/materials required for testing is to be demmed to be included quoted unit rate).

M&L for test point terminal block made up of gun metal or phosphorus bronze size 75x75x25mm drilled and screws and screwes including 3 nos and 8 mm dia 25mm long hex screws all as directed by Engineer in Charge.

M&L for PVC rectangular box of size 175x175x50mm for mounting the test point with 3mm thick plastic sheet as a top cover and mounted on wall floor with suitable size of screws all as directed by Engineer in Charge.

Earthing complete with Copper earth plate electrode of size 600x 600cm x 3.15 mm thick electrode buried directly in ground (earth pit not less than 2.25 meters deep below the normal ground level) with top edge of the plate not less than 1.5 m below normal GL connected to copper strip 20x3 mm by means of copper bolts, nuts, check nuts and washers and earth strip protected by 40mm dia GI pipe medium grade connected to main distribution board/ earthing test point all as shown on electrical plate No-03 of SSR Part-1 and all as specified including testing on completion.

Note: The unit rate shall also include for excavation, earth work in hard/dense soil, plain cement concrete (1;3:6) mix, Type C1 pit, 80mm thick RCC (1:2:4) mix type B1 cover reinforced with 8mm dia TMT bars @ 150mm c/c both ways , GI funnel with watering pipe, wire mesh, salt and charcoal, protection pipe for earth lead upto 7.50m long complete in addition to item No 1 (a) to (e) of preamble (notes) under sub heading earthing, specified in SSR part-II earth strip and protection pipe beyond 7.5m shall be measured and paid separately.

Earthing complete with Galvanised steel earth plate electrode of size 60x 60cm x 6mm thick electrode buried directly in ground (earth pit not less than 2.25 meters deep below the normal ground level) with top edge of the plate not less than 1.5 m below normal GL connected to GI strip 32x6 mm by means of bolts, nuts, check nuts and washers and earth strip protected by 40mm dia GI pipe medium grade connected to main distribution board/ earthing test point all as shown on electrical plate No-03 of SSR Part-1 and all as specified including testing on completion.

Note: The unit rate shall also include for excavation, earth work in hard/dense soil, plain cement concrete (1;3:6) mix, Type C1 pit, 40mm thick RCC (1:2:4) mix type B1 cover reinforced with 8mm dia TMT bars @ 150mm c/c both ways , GI funnel with watering pipe, wire mesh, salt and charcoal, protection pipe for earth lead upto 7.50m long complete in addition to item No 1 (a) to (e) of preamble (notes) under sub heading earthing, specified in SSR part-II earth strip and protection pipe beyond 7.5m shall be measured and paid separately.

SKY GROUP

Tropical Refrigeration

Ravi Enterprises

MS ASHOK T NAIR

EVEREST COOLING WORKS

Chandra Construction Enterprises