NIT No. 10 Item No. 9 (22-23) EE (T)/ACE

Dismantling of old ACB & other accessories from existing Panel, removing of all cable connection after taking shut down with help of cutter, heavy labour etc.

S/o of 1250 Amp. 3 pole Air Circuit Breaker of 50 kA breaking capacity based on microprocessor, MDO version. Make: -L&T/Siemens/DJB Approved.

S/o of 630 Amp. 3 pole Air Circuit Breaker of 50 kA breaking capacity based on microprocessor, MDO version. Make: -L&T/Siemens/DJB Approved.

Providing /fixing and making connection of bus bar of 1250 Amp ACB & 630 Amp ACB links, bends, aluminum bus bar will be of electrolytic grade 55% conductivity or as per relevant IS having sufficient cross section area insulated with heat shrinkable PVC sleeve in phase color identification. The bus bar support insulator shall be of class F insulation made out of non-hygroscopic material as SMC/DMC. All hard ware for connection/joints shall be in high tensile.

Arrangement of incoming/outgoing cable termination by providing & fixing of terminal link of current carrying capacity 1250Amp/630 Amp. With phase separator in sheet. Removable cable gland plate to be provided for each cable entry with gland. Making connection of both incoming & outgoing side as required with proper insulation.

Fixing of the ACB 630Amp/1250 Amp. in the existing LT Panel Board in incomer and bus coupler side including providing & fabrication & fixing of the base frames of suitable sizes for ACBs in the chamber. Modification in panel door. Re-fixing of existing all the measuring instruments, CT’s, lamps, etc. at the metering chamber along with complete wiring through 2.5 sq. mm single core copper wire including providing and fixing of necessary ferrules etc. and fixing the backup fuses as per requirement.

Providing and Fixing of Under voltage release device Type MV 415 Volt for 1250Amp ACBs. Make: -L&T/Siemens/DJB Approved.

Providing and Fixing of Under voltage release device Type MV 415 Volt for 630Amp ACBs. Make: -L&T/Siemens/DJB Approved.

Testing & commissioning of the installed equipment’s, testing of the panel prior to switching on as follow: - i) Continuity and earth testing ii) Meggaring of all equipment’s for phase to phase, neutral to body, neutral to earth and phase to earth. iii) Checking for all tightness of nut and bolts iv) Alignments of doors etc. v) Interlocking tests. vi) All function tests including cartage, loading, unloading, includes other sundry items like neoprene gasket, joints, oxidizing grease nut bolts, washers and other items which are useful and necessary for proper assembling and efficient working of the ACB, with adequate provision for safety measures during execution of work etc. wherever necessary so as to avoid accident.

Avon Electricals

Goodwill Enterprises

Shakti Trading Co.