Fail safe surge arrester

Details Fail safe surge arrester Fail safe surge arrester

H - Electricity

01

T

317/13

H01T 1/00 (2006.01) H01C 7/12 (2006.01) H01T 1/10 (2006.01) H01T 1/15 (2006.01)

Patent

CA 1181475

Abstract of the Disclosure: A surge arrester including an outer porcelain housing and an ablative heat shield liner is disclosed herein along with a number of techniques for making the surge arrester break resistant. In accordance with one of these techniques, a blow out or relief valve is provided on at least one end of the arrester housing for venting internal pressure due to electrical arcing therein. In this embodiment, an arrange- ment is provided for preventing the components therein from escaping during the venting procedure. The liner is con- structed of a material which is sufficiently ablative to produce its own gas within the housing in response to elec- trical arcing therein.

396559

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