Mahanadi Coalfields Limited Tender

Supplying and fixing metal box of 150 mm x 75 mm x60 mm deep (nominal size) on surface or in recess with suitable size of phenolic laminated sheet cover in front including providing and fixing 3 pin 5/6 A socket outlet and 5/5 A piano type switch connections, painting etc. as required.

Supplying and fixing metal box of 180 mm x 100 mm x 60 mm deep ( nominal size) on surface or in recess with suitable size of phenolic laminated sheet cover infront including providing and fixing 6 pin 5/6 & 15/16 A socket outlet and 15/16 A piano type switch connections, painting etc. as required.

Supplying and fixing suitable size GI box with modular plate and cover in front on surface or in recess including providing and fixing 3pin 5/6A modular socket outlet and 5/6A modular switch connection etc as required

Supplying and fixing suitable size GI box with modular plate and cover in front on surface or in recess including providing and fixing 6 pin 5/6A and 15/16A modular socket outlet and 15/16A modular switch connections etc as required.

Supplying and fixing 3 pin 5 A ceiling rose on the existing junction box/ wooden block including connections etc.as required.

Supplying and fixing brass batten/ Angle holder including connection etc.as required.

Supplying and fixing 32 A rating 240/415 V,10 K “ C” curve Miniature Circuit Breaker (MCB) suitable for inductive load of single pole in the existing MOB DB complete with connection testing and commissioning etc. as required.

Supplying and fixing single pole blacking plate in the existing MOB DB complete etc.as required.

Supplying and fixing 32 A TP&N disconnector fuse switch unit inside the existing panel board with ISI marked HRC Fuses including drilling holes in cubicle panel making connections etc. as required.

Supplying and fixing 63 A TP&N disconnector fuse switch unit inside the existing panel board with ISI marked HRC fuses including drilling holes in cubicle panel making connections etc. as required.

Supply, installation and commissioning of maintenance free earthing system, earth resistance upto 01 ohm with test certificate . Specification: Earthing electrode-50/3 MTPCB, 3M X 58mm , THK:50, 250 Micron copper coating on GI Pipe, Terminal Size-40/6, Inner strip-25x3, Filling material-BFC silica base bentonite powder 50Kg, Earth pit digging by spiral machine, Pit Cover- Poly Plastic (BIG) Primary earthing electrode (outer pipe) of 99.9% pure copper coating(250micron) on GI Pipe( diameter 58mm)X3mtrs . The hollow space of the electrode is duly filled with a highly conductive and non-corrosive compound (graphite power) which safeguards the secondary electrode getting corrode over a long period of time under the soil. Also the compound ensures the easy distribution of leakage/fault current lands on the electrode, Both the ends of the electrode are permanently sealed and the top portion of the earth electrode is compressed to form and extended lead with 2 holes on the terminal for connecting to the load/equipment.

Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)

Total impact of GST plus Labour Cess [@ 1 % (BOCW Cess to be deducted from the RA bill as per the value of the work progress)] for the purpose of CTC