ARTICLE AND METHOD FOR SEALING FLUID-CONTAINING CABLES
First Claim
Patent Images
1. A cold-shrink seal for a cable having a conductor extending therefrom and an oil-containing layer surrounding the conductor, the cold-shrink seal comprising:
- an electrically insulative, substantially oil-impermeable, elastomeric tube overlying a portion of the oil-containing layer; and
an electrically insulative elastomeric boot overlying a portion of the elastomeric tube.
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Accused Products
Abstract
A cable has a conductor extending therefrom and a partially exposed fluid-containing layer surrounding the conductor. A connector is joined to an end of the conductor, and an electrically insulative, elastomeric tube is covers all of the exposed fluid-containing layer and a portion of the connector. The elastomeric tube is substantially impermeable to the fluid in the cable. For cables having more than one conductor, an additional elastomeric boot is installed over the cable.
32 Citations
25 Claims
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1. A cold-shrink seal for a cable having a conductor extending therefrom and an oil-containing layer surrounding the conductor, the cold-shrink seal comprising:
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an electrically insulative, substantially oil-impermeable, elastomeric tube overlying a portion of the oil-containing layer; and an electrically insulative elastomeric boot overlying a portion of the elastomeric tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A cold-shrink seal at a terminal end of a cable, the cable having a partially exposed central conductor, a partially exposed, oil-impregnated, electrically insulative paper layer surrounding the conductor, a partially exposed semiconducting layer surrounding the paper layer, and a lead jacket surrounding the semiconducting layer, the cold-shrink seal comprising:
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an electrically insulative elastomeric tube contacting and surrounding a portion of the exposed portions of the semiconducting and paper layers, the elastomeric tube comprising a composition of a fluoroelastomer or a blend of a fluoroelastomer and an epichlorohydrin; and an electrically insulative elastomeric boot contacting and surrounding a portion of the elastomeric tube. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of providing an oil-stop at a terminal end of an electrical cable having a central conductor, an oil-containing layer surrounding the conductor, and a jacket surrounding the oil-containing layer, comprising:
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removing a portion of the jacket, thereby exposing a portion of the oil-containing layer; removing a portion of the oil-containing layer, thereby exposing a portion of the central conductor; and
placing a cold-shrink, electrically insulative, substantially oil-impermeable, elastomeric tube in resilient conformity around a portion of the exposed portion of the oil-containing layer, the elastomeric tube imparting resilient pressure to the oil-containing layer, wherein the elastomeric tube comprises a composition comprising a fluoroelastomer and an epichlorohydrin. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A cable transition joint comprising:
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a cable having a conductor extending therefrom and a partially exposed oil-containing layer surrounding the conductor; a connector joined to a terminal end of the conductor; and an electrically insulative, substantially oil-impermeable, elastomeric tube overlying a portion of the exposed oil-containing layer and a portion of the connector. - View Dependent Claims (23, 24, 25)
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Specification