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Priority to JP1976011848UpriorityCriticalpatent/JPS52101951U/ja
Publication of JPS52101951UpublicationCriticalpatent/JPS52101951U/ja
H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
H01H9/342—Venting arrangements for arc chutes
H01H2009/343—Venting arrangements for arc chutes with variable venting aperture function of arc chute internal pressure, e.g. resilient flap-valve or check-valve