IS: 2516 (Part I/Sec 2) - 1963 (with amendment No.3 - 1977) : Specification for alternating current circuit-breakers Part I requirements Section 2 voltage range 1000 to 11000volts

IS: 2516 (Part I/Sec 2) - 1963 (with amendment No.3 - 1977) : Specification for alternating current circuit-breakers Part I requirements Section 2 voltage range 1000 to 11000volts - New Delhi BIS 1963 - 29p

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