Tender For Maintenance & Const Of Earth Pits,Cable Layg <(>&<)> Removal Of Ccd Area -, ROURKELA-Odisha

Tender For Maintenance & Const Of Earth Pits,Cable Layg <(>&<)> Removal Of Ccd Area -MAINTENANCE OF EARTH PIT AS PER FOLLOWING SCOPE OF WORK: 1. REPAIRING OF THE EARTH PITS CHAMBER IF FOUND DAMAGE. 2. REPAIR / REPLACE OF THE CI COVER OF THE EARTH PIT. 3. UPDATING OF THE VALUES IN THE PLACARDS WITH YELLOW BACKGROUND AND BLACK LETTER. IF PLACARDS ARE MISSING, NEW PLACARDS ARE TO BE FIXED AND RESISTANCE TO BE WRITTEN ALONG WITH DATE OF MEASUREMENT. 4. CHECKING & TIGHTENING THE CONNECTION OF THE EARTHING STRIP WITH EARTHING ELECTRODE. 5. FILLING CHARCOALS / BENTONITE AFTER DIGGING THE SIDE OF THE EARTHPIT & POURING SALTY WATER IN THE EARTH ELECTRODES TO MAINTAIN LOW EARTH RESISTANCE.6. MEASUREMENT OF EARTH RESISTANCE IN THE PRESENCE OF DEPARTMENT REPRESENTATIVE. THE RESISTANCE SHOULD BE LESS THAN 1 OHM, IF NOT PITS ARE TO BE RE-CHECKED AND MAINTAINED AGAIN., CONSTRUCTION OF EARTH PIT AS PER IS:3043-1987 CONFORMING TO THE DRAWING PROVIDED BY RSP.THE EARTH PIT SHALL HAVE STANDARD DEPTH OF 3.5MTR,HOMOGENIOUS MIXTURE OF BENTONITE & SOIL IN RATIO OF 1:6,3.0MTR,100MM DIA GI PIPE AS ELECTRODE & FUNNEL ETC. EARTH PIT TOP SHALL HAVE A DIMENSION OF 650MM X 650MM,MADE OUT OF R.C.C.WITH INSIDE DIMENSION OF 400MM X 400MM,HAVING HINGED CI COVER ON A CI FRAME.THE PIT HEIGHT SHALL BE 200MM ABOVE GROUND.THE EARTH PIT SHALL BE PROVIDED WITH IDENTITY MARKER MADE OUT OF MS FLAT OF SIZE 25MM X 5MM AND PAINTED PLACARD OF SIZE 200MM X 150MM WITH MARKING LIKE EARTH PIT-1 & 2.THE PLACARD SHALL BE PAINTED WITH YELLOW B/G AND BLACK LETTER THE MARKER SHALL BE GROUTED IN CONCRETE TOP.THE PIT LOCATION SHALL BE SPECIFIED BY THE EXEC.OFFICER.THE EARTHING ELECTRODE SHALL BE CLAMPED WITH GI STRIP OF SIZE 300MM X 75MM X 10MM USING SUITABLE GI U CLAMP.THERE SHALL BE MINIMUM 2 NOS OF 17MM DIA HOLES FOR CONNECTING EXISTING EARTHING PIT / EARTHING GRID.GOOD QUALITY GI NUTS & BOLTS SHALL BE USED FOR CONNECTION.THE GI STRIP SHALL BE LAID AT A DEPTH OF 500 MM BELOW SURFACE.ALSO IT IS TO BE CONNECTED WITH MAIN CONTROL ROOM USING GI STRIP OF SIZE 25MM WIDTH X 3 MM THICKNESS.ALL THE MATERIALS REQUIRED TO COMPLETE THE JOB ARE TO BE SUPPLIED BY THE CONTRACTOR.LABOUR,SERVICE & LIKE CHARGES=30.00% SUPPLY COMPONENT=70.00%, COVERING OF CABLE RACK BY GI SHEET OF THICKNESS UPTO 2MM FROM GROUND LEVEL TO A HEIGHT OF 5 MTR. THE SHEET WILL BE FOLDED AS PER THE SURFACE AREA TO BE COVERED(IN SQ.MM). FINALLY THE COVERED SHEET TO BE BOLTED/CLAMPED/WELDED RIGIDLY TO THE SIDE SUPPORTING ANGLE OF THE CABLE RACK. BOLTING/CLAMPING MATERIALS AND GI SHEET WILL BE PROVIDED BY THE USER DEPTT. FREE OF COST. BOLTING, WELDING, CLAMPING AND CUTTING TOOLS WILL BE IN THE SCOPE OF CONTRACTOR, REMOVAL OF CONTROL CABLES FROM THE ELECTRICAL PANEL, CABLE SIZE: 4 X 2.5 SQ.MM TO 27 X 2.5 SQ.MM CU./AL. CABLES ARE TO BE TAGGED PROPERLY FOR IDENTIFICATION. IF REQUIRED TO BE DISPLACED PARTIALLY TO AVOID DAMAGE AT WORK PLACE, etc.

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