Patent ID: 7884284

Claim:
A cable comprising at least one electrical conductor and at least one extruded covering layer comprising a thermoplastic polymer material in admixture with a dielectric liquid, wherein said thermoplastic polymer material comprises: (a) at least 75% by weight, with respect to the total weight of the thermoplastic polymer material, of at least one copolymer of at least two α-olefin comonomers, said copolymer having a melting enthalpy lower than 25 J/g; and; (b) an amount equal to or less than 25% by weight with respect to the total weight of the thermoplastic polymer material of at least one propylene homopolymer or propylene copolymer with at least one α-olefin, said at least one propylene homopolymer or propylene copolymer having a melting enthalpy higher than 25 J/g and a melting point higher than 130° C., said covering layer having a melting enthalpy equal to or lower than 40 J/g, and the concentration by weight of said dielectric liquid in said thermoplastic polymer material being lower than the saturation concentration of said dielectric liquid in said thermoplastic polymer material.