BANGLADESH POWER DEVELOPMENT BOARD TENDER ... - BPDB

eaker.(6) Dielectric Test Voltagea. Power frequency withstand voltage : (As per relevant IEC) kV for oneminuteb. Lighting impulse withstand voltageFull wave (1.2 / 50 micro sec.):1050 kV PEAKc. Test voltage on control circuit :2.0 kV for one min.(7) Tools and AccessoriesThe following tools and accessories shall be supplied for each circuit breakers.a. Name plateb. Position indicating lamps (red and green) or flags.c. Operation counter.d. Grounding terminalse. Gas, and hydraulic pressure gaugef. Safety valves, if anyg. Pressure drop protecting deviceh. Manual operation device.i. Auxiliary switchj. Control box with locking devicek. Steel supporting structure with anchor bolts and nutsl. Operating mechanism.m. Special tools for checking and testingn. Power outlet, single phase, 132 V, 10 A in control box0. Conduit pipesp. Communication facilities between switchgear and control roomq. Other necessary accessories, if any6.2.2 230 kV DISCONNECTING SWITCHES(1) TypeFor busesOutdoor, three (3) pole, single throw, group operated, horizontal break, rotatinginsulator, remote controlled motor operated type.(2) Ratingsa. Rated voltage :230 kV.(3) Requirements for Design and Constructiona. The disconnecting switches shall be so designed and Constructed inaccordance with IEC 129.b. The contact part of the blade shall be silver electroplated.Ghorasal 200 MW to 300 MW Gas Turbine Peaking Power Plant Project (Vol-2 of 3)60