MS 946-1984

标准号：MS 946-1984
发布日期：1984/7/31 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 Scope. This Malaysian Standard specifies the requirements for ac residual current operated protective device with a rated voltage not exceeding 660 volts and a rated current not exceeding 125 amperes at rated frequency not exceeding 400 Hz and intended to be used in situations where the installation is earthed generally in accordance with MS 945*. Protective devices which include overcurrent protection or other devices as integral parts of their construction shall also comply with the requirements of the appropriate standard.This standard does not apply to residual current operated protective devices which have electronically operated or controlled mechanisms for interrupting the circuit or any associated earth fault sensing devices.