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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
H01H9/32—Insulating body insertable between contacts
FR640148D1927-02-071927-02-07Perfectionnements aux appareils de contrôle des circuits électriques, tels que desinterrupteurs, disjoncteurs, etc.
ExpiredFR640148A
(fr)
Perfectionnements apportés aux dispositifs comportant des contacts électriques, dispositifs tels que conjoncteurs, interrupteurs, fusibles, prises de courant, etc.