Fire alarms; Alarms responsive to explosion

Introduced: September 1968

Of 7 combined children, 6 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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G08B 17/005 CPC only CPC only
G08B 17/02 Mechanical actuation of the alarm, e.g. by the breaking of a wire IPC+CPC Available in IPC and CPC
G08B 17/04 Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure IPC+CPC Available in IPC and CPC
G08B 17/06 Electric actuation of the alarm, e.g. using a thermally-operated switch IPC+CPC Available in IPC and CPC
G08B 17/08 Actuation involving the use of explosive means IPC+CPC Available in IPC and CPC
G08B 17/10 Actuation by presence of smoke or gases IPC+CPC Available in IPC and CPC
G08B 17/12 Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions +1 CPC IPC+CPC Available in IPC and CPC