This standard BS EN 61921:2003 Power capacitors. Low-voltage power factor correction banks is classified in these ICS categories:
31.060.70 Power capacitors
Applicable to low-voltage a.c. capacitor banks intended to be used for power factor correction purposes, equipped with a built-in switchgear and controlgear apparatus capable of connecting to or disconnecting from the mains part(s) of the bank with the aim to correct its power factor.
