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Publication of JPS4967147ApublicationCriticalpatent/JPS4967147A/ja
H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
H01H33/02—Details
H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
H01H33/16—Impedances connected with contacts
H01H33/161—Variable impedances
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01C—RESISTORS
H01C10/00—Adjustable resistors
H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
H01C10/12—Adjustable resistors adjustable by mechanical pressure or force by changing surface pressure between resistive masses or resistive and conductive masses, e.g. pile type