IPC Subgroup
H01H 33/02 Details
Introduced: September 1968
Last revised: January 2006
Full Title
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Details
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9 direct subcodes
Child Classifications
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- H01H 33/04 Means for extinguishing or preventing arc between current-carrying parts
- H01H 33/24 Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
- H01H 33/26 Means for detecting the presence of an arc or other discharge
- H01H 33/28 Power arrangements internal to the switch for operating the driving mechanism
- H01H 33/42 Driving mechanisms
- H01H 33/44 Devices for ensuring operation of the switch at a predetermined point in the AC cycle
- H01H 33/46 Interlocking mechanisms
- H01H 33/53 Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H 33/59 Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle