CPC Subgroup
H01H 33/76 wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
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 > wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
3 direct subcodes
Child Classifications
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- H01H 33/77 wherein the break is in air at atmospheric pressure
- H01H 33/78 wherein the break is in gas (in air at atmospheric pressure H01H33/77)