IPC Subgroup
H02J 9/04 in which the distribution system is disconnected from the normal source and connected to a standby source
Introduced: September 1968
Last revised: January 2006
Full Title
Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting > in which the distribution system is disconnected from the normal source and connected to a standby source
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
1 direct subcode
Child Classifications
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- H02J 9/06 with automatic change-over