Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting

Introduced: September 1968

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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H02J 9/002 CPC only CPC only
H02J 9/005 +1 CPC CPC only CPC only
H02J 9/02 in which an auxiliary distribution system and its associated lamps are brought into service IPC+CPC Available in IPC and CPC
H02J 9/04 in which the distribution system is disconnected from the normal source and connected to a standby source IPC+CPC Available in IPC and CPC