Heat insulated fused high voltage bushing

Details Heat insulated fused high voltage bushing Heat insulated fused high voltage bushing

1975-02-12

1976-07-27

Budd, Mark O.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337186, 337276, H01H 8502

Patent

active

039720152

ABSTRACT:
A fused high voltage electrical bushing having a housing formed of a ceramic dielectric material, porcelain or glass, and having an axially extending passage, an electric terminal at each end of said passage, a fusible element within said passage interconnecting the terminals, a granular dielectric material completely filling the passage, a conductive layer of material on the inside surface of the passage, and a heat insulating sleeve positioned in the passage between the granular dielectric material and the inside surface of the housing to insulate the housing from the heat of the arc on interruption.

REFERENCES:
patent: 2408990 (1946-10-01), Mitchell
patent: 2537348 (1951-01-01), Hubbard et al.
patent: 3659244 (1972-04-01), McKeithan
patent: 3663928 (1972-05-01), Keto

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