DIFF Subgroup
H01H 33/70 Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
Introduced: September 1968
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
Of 8 combined children, 6 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open
- H01H 33/72 having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber IPC+CPC Available in IPC and CPC
- H01H 33/76 wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor +1 CPC IPC+CPC Available in IPC and CPC
- H01H 33/80 flow of arc-extinguishing fluid from a pressure source being controlled by a valve IPC+CPC Available in IPC and CPC
- H01H 33/86 the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve IPC+CPC Available in IPC and CPC
- H01H 33/88 the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts +4 CPC IPC+CPC Available in IPC and CPC
- H01H 33/98 the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow +1 CPC −2 IPC IPC+CPC Available in IPC and CPC