IS 3637-1966

标准号：IS 3637-1966
发布日期：1966/9/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard covers requirements and methods of test for gas-operat-ed relays intended for installation in the connecting passage of oil between the main tank of an oil immersed electrical apparatus and its oil conserva-tor vessel.1.2 This standard covers gas-operated relays fitted with both alarm and trip elements.1.3 Although this standard does not specifically exclude gas-operated relays intended only for alarm, special provisions intended only for such relays have not been included.1.4 This standard does not cover gas-operated relays which are not intended to be installed in the oil passage between the main tank and the conservator. It also does not cover gas-operated relays used for the protection of oil immersed apparatus mounted on railway vehicles.