SPECIAL REPAIRS / REPLACEMENT TO EXISTING LT UG CABLE/ LT PANEL ALONG WITH ASSOCIATED WORK AT AFCAO MAIN BLDG AND OPW BLDG UNDER GE (AF) SUBROTO PARK

Taking out old/ defective cable XLPE/ PVC sheathed 1100 volt grade heavy duty armoured with aluminium conductor cable of size 240 sqmm 3.5 core from trenches/wall under ceiling etc complete all as specified and directed.

All as per item No-1 above but cable size 120sqmm 3.5 core .

All as per item No-1 above but cable size 16 sqmm 4 core .

Supply, laying, jointing and testing of LT cable XLPE Insulated, screened, PVC bedded, galvanized steel strips armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminum conductor of size 500 sq mm 3½ core complete all as specified and directed with necessary cable glands at end, aluminium lugs for connecter complete. (A Power House to Main Panel AFCAO) Note : Cable will not be taken out due to construction of building over the cable and it will be used as a stand by cable .

Supply, laying, jointing and testing of LT cable XLPE Insulated ,screened, PVC bedded, galvanized steel strips armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminum conductor of size 240 sq mm 3½ core complete all as specified and directed with necessary cable glands at end, aluminium lugs fir connecter and taking out of old cable.(A Power House to Annex I OPW Bldg of AFCAO)

Supply, laying, jointing and testing of LT cable XLPE Insulated ,screened, PVC bedded, galvanized steel strips armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminum conductor of size 120 sq mm 3½ core complete all as specified and directed with necessary cable glands at end, aluminium lugs for connecter complete.(A Power House to Annex Bldg II New Bldg)

Supply, laying, jointing and testing of LT cable XLPE Insulated ,screened, PVC bedded, galvanized steel strips armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminum conductor of size 16 sq mm 4 core complete all as specified and directed with necessary cable glands at end, aluminium lugs for connecter complete..(A Power House to Annex Bldg II of OPW)

S & F of LED light with pole for approch path pole in polyester/ PU paint including single arm bracket made of MS with Hot dip galvanised pipe in polyster/ PU paint of 4.5 Mtr height of make halonix model no HLOP-S95-4.5M-114/76-ACB and bracket HLSAB-46-76-10x10-P-HDG suitable for single side mounting of drop down luminaires including 45 Watt LED light fitting with main housing/ heat sink material aluminium dia cast HLOSL-04-45-WWWL-01 and cement concrete 1:2:4 type B1 for foundations up of size 2'x2'x2' PCC from ground level with proper fixing arrangements such as Nut/bolts/washers over PCC work all as specified and directed.

M&L for conductive concrete earth grid of multiple interconnected earth electrodes to achieve the earth resistance value of less than < 5ommega. The excavation is to be carried out in any type of soil including hard rock. The approx. specification are as under:- (i) Earth Electrodes: Metal conductor- copper bonded MS rod dia 17.2 mm (+/-.5mm), length 2.25 meter with conductive concrete including provision of bore 100 mm dia, 2.25 meter length of earth electrode duly filled with conductive concrete. (ii) All earth electrode s (min two nos) should be installed to achieved the desired result. (iii) Interconnected strip: all the multiple earth electrodes will be horizontally interconnected with metal conductor- copper strip flat size: 25mm x 3mm & conductive concrete embedding size 60mm2. (iv) Test Link: Test links- Copper strip flat size: 40 mmx 6mm x 200mm shall be provided, at any one of the multiple earth electrodes of grid for connection between earth grid pit and application. (v) Pit cover: RCC pit cover & frame shall be provided at all earth electrode (with test links). Note: (a) Bidder shall produce certificate for resistivity of conductive concrete. (b) Fault current tested at 40KA peak with 17.2 mm copper bonded rod. (c) On completion of work engineer in charge will check the earth resistance, contractor will redo the earth if earth resistance value is more than 5 ohm if value not found as per contract the necessary action to be taken by the contractor for achieving the desire result. (d) All connecting strips would be of copper of size 20x3 mm and cost of the same is included in the rate quoted, upto test point. (e) Test certificate of earthing material for ROHS compliance, resistivity value and fault current test for electrode from certified NABL laboratory shall be submitted. (f) Contractor will annually check the resistance value of earth grids after completion of work. (g) The vendor to provide CPRI test report for current greater than 20 KA with peak at 40 KA, the report shall not be more than 5 year old from the date of tender. (h) The product should be ROHS compliance. (j) The contractor to submit unconditional guarantee for 10 years for replacement of earthing if results are not satisfactory. (k) The earthing to be carried out by OEM only. The MoU in this respect to be submitted by contractor while quoting the contractor, (Make- Elencrete/JMV/SN/Earthing/Tru power eathing).

M&L in replacement of earth contuinity 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 with galvanised iron strip 32 mm x 6mm complete all as specified and directed by Engineer-in-Charge.