Although created for fittings above 45 kV the standard may also be applied to lower voltages and to similar fittings for substations.Cross References:IEC 60437:1973ISO 209-1:1989ISO 426-1:1983ISO 426-2:1983ISO 427:1983ISO 428:1983ISO 630:1995ISO 683-1:1987ISO 683-13:1986ISO 1083:1987ISO 1187:1983ISO 1336:1980ISO 1459:1973ISO 1460:1992ISO 1463:1982ISO 2604-1:1975ISO 3506:1979ISO 3522:1984ISO 3574:1986ISO 3755:1991ISO 5922:1981ISO 6361-2:1990ISO 6362-2:1990ISO 6363-2:1993ISO 6932:1986 IEC 60050-466:1990IEC 60060-1:1989CENELEC HD 588.1 S1IEC 60120:1984CENELEC HD 474 S1IEC 60372:1984IEC 60471:1977IEC 60826:1991IEC 61089:1991CISPR 16-1:1993CISPR 18-2:1986ISO 1461ISO 9000-1:1994EN ISO 9000-1:1994ISO 9001:1994EN ISO 9001:1994ISO 9002:1994EN ISO 9002:1994ISO 9003:1994EN ISO 9003:1994ISO 9004-1:1994EN ISO 9004-1:1994ISO 2859-1:1989ISO 2859-2:1985ISO 3951:1989