High voltage bushing having weathershed and surrounding stress r

Details High voltage bushing having weathershed and surrounding stress r High voltage bushing having weathershed and surrounding stress r

1980-07-11

1981-10-20

Askin, Laramie E.

Electricity: conductors and insulators

Insulators

Combined

174 31R, 174209, H01B 1726, H01B 1742

Patent

active

042962749

ABSTRACT:
A high voltage electric bushing comprises a hollow elongated dielectric weathershed which encloses a high voltage conductor. A collar formed of high voltage dielectric material is positioned over the weathershed and is bonded thereto by an interface material which precludes moisture-like contaminants from entering between the bonded portions. The collar is substantially thicker than the adjacent weathershed which it surrounds, providing relief of the electric stresses which would otherwise appear on the outer surface of the weathershed. The collar may include a conductive ring or capacitive foil to further relieve electric stresses experienced by the bushing.

REFERENCES:
patent: 3544707 (1970-12-01), Gamble

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