Fabrication, installation of Heater Bus Bars and Installation and Centering of Graphite Anodes-Cathode Assembly of 24kA Sodium Cell including supply of of associated material at Heavy Water Board Facilities, Vadodara.

Amount

Supply of Carbon Steel Plate/Flats, Fabrication of Heaters {Three Phase Heaters, Surface Heaters, Central Heaters} as per Drawing No. HWB/SOD/MECH/01 Rev. 02 Sheet-2, 3 & 4 and Installation of fabricated heaters by opening cut out at respective heaters location as per assembly drawing no. HWB/SOD/MECH/01 Rev. 02 Sheet 1.

Supply of “ETP (Electrolytic Tough Pitch) grade Annealed copper Plate with conductivity of IACS (99.25% Min) in dimension- 2400 mm X 4 50 mm and 10 mm thick as per IS 613-2000 (IS191-1980 Part-5).”

Fabrication & installation of Copper Bus Bar as per drawing No. SK-5916. Supply, Fabrication & installation of Carbon Steel support with FRP insulator to the copper bus bar.

Cutting of downward old extended portion of existing Cathode bus bar at one end, Extension of existing cathode bus bar ends by welding as per drawing No. HWB/SOD/MECH/01 Rev. 02 Sheet 1 & 6. Providing box encloser to cathode bus bar end openings by welding as per drawing No. HWB/SOD/MECH/01 Rev. 02 Sheet 1 &6. (Kindly see Existing cathode Bus bar drawing No. SKETCH-2)

Sand Blasting of Cathode

Installation & Centering of Graphite Anodes (04 nos.) & cathode as per drawing No. HWB/SOD/MECH/01 Rev. 02 sheet 1. Party has to deploy experienced Millwright Fitter for this job. (Kindly see existing Graphite Anode Drawing No. SKETCH-3)

Patch Welding to seal all Cut-out openings of the Cell body as per Drawing No. SKETCH- 1, Rev 0.

Supply of carbon Steel bright bar Flats for fabrication of start up heaters. Size 50 MM Width X 20 MM Thick.

Supply of Hot Rolled carbon Steel Plate of Thickness 6 MM as per IS: 2062 for fabrication of temporary top cover.

Supply of Chrome Plated Rod and Honned Tube for fabrication of Guide-Bar for alignment of Top cover assembly concentrically wrt to cathode& Anode. Tube Size: 1.5 Meter X 48 OD (Aprox OD). Clearance b/w Rod and tube: 0.3 MM

Supply of Graphite Rods as per below specification: Dimensions: 50 MM Dia X 600 MM Length Apparent Density (Min): 1.7 gm/cc Grain Size (Max): 0.8 mm Apparent Porosity (Max): 20% Ash (Max): 0.5% Colour: Grey Black