Applicable to indoor capacitor units and banks used particularly for power factor correction with controlled a.c. voltage systems up to 50 Hz, 3.6k V.Cross References:IEC 60252:1993IEC 60358:1990IEC 61048:1991IEC 61049:1991IEC 61071-1:1991IEC 61270-1:1996IEC 60050(436):1990IEC 60110-2IEC 60143EN 60143IEC 60831EN 60831IEC 60871EN 60871IEC 60931EN 60931IEC 60996:1989