This standard applies to external fuses used with high-voltage capacitors according to IEC 60871-1, Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V –Part 1: General. IEC 60871-1 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems, and also to capacitors intended for use in power filter circuits.
IEC 60549:2013 history
2013IEC 60549:2013 High-voltage fuses for the external protection of shunt capacitors
1976IEC 60549:1976 High-voltage fuses for the external protection of shunt power capacitors