NIT NO. 15 (19-20) Item No. 7

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.

Supply of 2000 Amp. 4 pole Air Circuit Breaker of 75kA breaking capacity based on microprocessor, MDO version. Make: -L&T/Siemens/DJB Approved.

Providing /fixing and making connection of bus bar of 2000Amp 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 2000 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 2000Amp. in the existing LT Panel Board 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 (ACB provided by the department)

Providing and Fixing of Under voltage trip device (UVT) Type MV 415 Volt for 2000Amp ACBs. Make: -L&T/Siemens/DJB Approved.

Providing and fixing of MCB TPN 63Amp. Make: - Schineder /L&T /Siemens / DJB Approved.

Providing and fixing of 6 Amp. rating S.P miniature circuit breaker. Make- L&T/HAVELLS/BAJAJ

Providing and fixing of MCB TP 63Amp. Make: - Schineder /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.

Raj Engineering Co.

CHANDERA BUILDERS