Patent ID: 6858296

Claim:
A cable comprising an electrical conductor or a core of electrical conductors surrounded by (A) an insulation layer, which is surrounded by, and contiguous with, (B) an insulation shield layer, the (A) insulation layer comprising: (a) a polymer selected from the group consisting of polyethylene, ethylene/propylene copolymer rubber, ethylene/propylene/diene terpolymer rubber, and mixtures thereof, and, based on the weight of the insulation layer, (b) about 0.005 to about 1 percent by weight of a 4-substituted 2,2,6,6-tetramethylpiperidine containing one or more of the group wherein R is hydrogen, or an alkoxy or an alkyl, each having 1 to 50 carbon atoms; and the (B) insulation shield layer comprising: (a) a copolymer of ethylene an unsaturated ester selected from the group consisting of vinyl esters, acrylic acid esters, and methacrylic acid esters wherein the vinyl ester is present in the copolymer in an amount of about 10 to about 28 percent by weight based on the weight of the copolymer and the acrylic acid esters and methacrylic acid esters are present in an amount of about 10 to about 50 percent by weight based on the weight of component (B)(a); (b) a conductive carbon black; and, based on the weight of the insulation shield layer, (c) at least about 5 percent by weight of a copolymer of acrylonitrile and butadiene wherein the acrylonitrile is present in the copolymer in an amount of about 25 to about 55 percent by weight based on the weight of component (B)(c).