flow of arc-extinguishing fluid from a pressure source being controlled by a valve

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 > flow of arc-extinguishing fluid from a pressure source being controlled by a valve

Child Classifications

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• H01H 33/82 the fluid being air or gas
• H01H 33/84 the fluid being liquid, e.g. oil