Method for treating electrical cable at sustained elevated...

Details Method for treating electrical cable at sustained elevated... Method for treating electrical cable at sustained elevated...

2005-03-01

2009-11-10

Talbot, Brian K (Department: 1792)

Coating processes

Electrical product produced

Wire conductor

C427S118000, C427S120000

Reexamination Certificate

active

07615247

ABSTRACT:
A method for enhancing the dielectric properties of an electrical cable segment having a central stranded conductor encased in a polymeric insulation jacket and an interstitial void volume in the region of the conductor, including filling the interstitial void volume with a dielectric property-enhancing fluid at a pressure below the elastic limit of the polymeric insulation jacket, and confining the fluid within the interstitial void volume at a residual pressure greater than about 50 psig, with the pressure being imposed along the entire length of the segment but below the elastic limit of the polymeric insulation jacket. Preferably, the residual pressure is sufficient to expand the interstitial void volume along the entire length of the cable segment by at least 5%.

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