REPAIR AND MAINTENANCE OF LIGHTING ARRESTORS, EARTHING AND ASSOCIATED WORK AT AF STN SINGARSI UNDER AGE (I) AF STN SINGARSI

Materials and Labour for 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 for 20x3mm copper strip including brazing if required complete all as specified and directed.

M&L for 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 4 mm galvanised iron or steel wire, complete all as specified and directed.

M & L for air termination, single pointed aluminium rod 12mm dia and 300mm longcomplete all as specified and directed.

Supply and fix Aluminium strip 25 x 3.15mm with saddle and fixing screws, insulator, etc for roof conductors and down conductors above ground complete all as specified and directed. Note:- Strip to be supported on earth support strip.

M & L for test point terminal block made of gun metal or phosphorus bronze size 75mm x 75mm x 25 mm, drilled and screwed including 3 Nos 8 mm dia 25 mm long hex. Head screw complete all as specified and as directed.

Materials and Labour for 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 for 32x6 mm galvanised Iron strip complete all as specified and directed.

M&L for GI Pipe light grade 40mm with all fittings and fixed complete on roofs, walls, ceiling or laid on floors welded on both ends with sheet metal of suitable size for fixing ATR complete, all as speciifed and as directed.

S & F MS Junction box for mounting Test terminal block including provision of passing earth strips from top and bottom of the box all as specified and directed complete all as specified and directed.

M & L PCC using Type C1 1:3:6 using 20mm graded stone aggregate of size 0.3m(l) x 0.3m(w) x 0.15m(h) with and including rigid FRP/ electrical non-conducting based material as base for mounting GI pipe 50mm over MS ferule complete all as specified and directed.

M & L for pipe support for all types of pipes including hangars / fastners / elbows/ supports / tees complete all as specified and directed.

M & L for laying of UPVC pipes & fittings of size 40 mm as protection pipe complete, complete all as specified and directed.

M & L for cross arms, bracings, supports, clamps and back plates 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 inclusive of one primer coat, one under coat and one finishing coat of paint complete all as specified and directed.

Supply, Installation, Testing and commissioning of ESE Lightning Arrester-Thunder Guard-Coverage Radius 107 metre-ESE Thunder Guard equipped with stainless steel central pickup rod, full electrical continuity between the tip and the earth point, fully autonomous (no battery and other power supply required), model thunder guard stainless steel body, CPRI certified, radius coverage 107 mtr ESE Lightning Protection complete with the Air Terminal-with stand a minimum switching impulse voltage of 500 KV complies. IEC 62305, IS209-1989 EN 62305 & IEC 16-1:1983099 to be installed at the roof and the centre of building, collect energy through streamer emission controlled with defects th lightning and trigger a stream, with protection special features complete all as specified and directed.

M & L for GI mast suitable formounting ESE-LA with base mounting accessories, stay wire, U-clamp & grounding Fastner ccomplete all as specified and directed.

S & F of Lightning Strike Counter-Digital-6 digits complete, all as specified and directed.

S & F of Test Link for ESE Lightning Arrestor fabricated in plastic box complete, all as specified and as directed.

M & L for 1Cx70 sqmm copper cable as down conductor for ESE LA and connected to Earthing pit incl. mounting on walls with support strip/spacers, etc. complete, all as specified and as directed.

Supply and fixing of earth pit display board at each earthing pit, heavy type, 2.0 mm thick sheet metal base with 500 mm MS Stand, board shall be printed with following 'Earth Pit No.______', 'Connected to __________', Tested Date : ________', Ohmic Value : ________, Due Date : __________' complete all as specified and directed.

Supply, making, printing and fixing of Earthing layout diagram/any other layout diagram, properly pasted on suitable 2 mm thick PVC board of suitable size with proper fixing arrangements for hanging on the walls with suitable spacers, fastner etc all complete. Rough details of earthing/any other layout for each E/M installations / bldgs to be printed will be proivded in hand made drawing, which has to made in 2D computer and taken computerised printing and pasted on board complete all as specified and directed.

Supply & fixing heavy vehicle battery 150 Ah , 12 Vdc complete, all as specified and as directed.

M & L for Bentonite earthing compound or any other suitable earthing compound to enhance conductivity of earth pit complete, all as specified and as directed.

S & F in repair touchproof Termination kit (screened separable connector) for RMU, suitable for 11 KV, 3 core, 95 sqmm Al cable complete, all as specified and as directed. Make: Raychem/Gala/3M or equivalent as specified

M & L in repair cable jointing kit 11 KV (Earthed) grade cable for outdoor termination 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 of copper spreader link for MCB of size 25x10mm or any other size of current carrying capacity of 400 A and length not less than 10 cm with colour coding and necessary accessories viz. nut-bolts, etc. for fixing complete all as specified and directed.

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