Concerned with internal fuses for isolation of faulty capacitor elements for permitting operation of the
remaining parts of that capacitor unit, together with the bank where the capacitor is connected. Not
intended to substitute for a switching device eg a circuit-breaker, or for external protection of the
capacitor bank or any part of it. Intended for formulation of requirements relating to performance and
testing, and for provision of a guide for coordination of fuse and bank protection.