IPC Subgroup
H01H 33/86 the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve
Introduced: September 1968
Last revised: January 2006
Full Title
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid > the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
1 direct subcode
Child Classifications
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- H01H 33/867 the fluid being air or gas