Sealed passage for electrical leads across a barrier

Details Sealed passage for electrical leads across a barrier Sealed passage for electrical leads across a barrier

1994-06-13

1997-06-03

Kincaid, Kristine L.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

174152R, 174DIG8, H02G 318

Patent

active

056356749

ABSTRACT:
An assembly of heat shrink tubes provides an interface across a barrier, such as a boundary of a chamber of a transformer housing. Each of the tubes has an axial aperture for receiving at least one respective electrical lead, such as ones extending from a transformer disposed in the chamber of the transformer housing to a connection outside the chamber. The interface preferably also includes a plurality of bushings, wherein each of the bushings is disposed in the axial aperture of a respective one of the heat shrink tubes. A support member is preferably included so that the heat shrink tubes are disposed adjacent a plurality of holes defined through the support member. An adhesive fluid tightly connects the heat shrink tubes to the support member. The chamber of the transformer housing includes a wall having an inner surface, against which an insulating liquid is disposed, and an outer surface, against which a gas is disposed. The heat shrink tubes can be mounted to this wall, such as by bolted attachment of the support member.

REFERENCES:
patent: 3423518 (1969-01-01), Weagant
patent: 3841032 (1974-10-01), Grannis, III
patent: 4234218 (1980-11-01), Rogers
patent: 4345804 (1982-08-01), Lanoue
patent: 4625072 (1986-11-01), VanBrunt
patent: 4670625 (1987-06-01), Wood et al.
patent: 4849582 (1989-07-01), Stevenson
patent: 4852252 (1989-08-01), Ayer
patent: 4879799 (1989-11-01), Sovish et al.
patent: 4993149 (1991-02-01), Zilligen et al.

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