Document Type and Number:
Japanese Patent JPS4944266
Kind Code:
A
Abstract:
A contact arrangement for a high-voltage switching apparatus includes two hollow contact pieces across which a switching member of the switching apparatus is movable to electrically join and separate the contact pieces. The contact pieces are mutually adjacent so as to cause the respective end-faces thereof to define a gap when the switching member is moved to the open position. At least one of the contact pieces includes a contact member having an end-portion at the region of the end-face of the one contact piece. A metallic annular member made of arc-resistant material is supportably mounted on the contact member at the end-portion thereof. A nozzle-shaped graphite electrode is electrically joined to the contact member. The contact member and the annular metal member conjointly surround the graphite electrode.
Application Number:
JP7643273A
Publication Date:
April 25, 1974
Filing Date:
July 06, 1973
Export Citation:
International Classes:
H01H33/20; H01H33/70; H01H33/915; (IPC1-7): H01H33/74