POWER CABLE

Power cable having an insulation system comprising at least one layer made of a thermoplastic material based on a polypropylene matrix admixed with a dielectric fluid, the thermoplastic material having a melting enthalpy of from 15 to 50 J/g and the polypropylene matrix being made of a material selected from: a heterophasic ethylene-propylene copolymer (a) having a melting enthalpy of from 15 to 50 J/g; or an intimate admixture of (a) and a propylene homopolymer or an ethylene propylene copolymer (b) having a melting enthalpy greater than 50 J/g. The cable is particularly suitable for currenttransport at high voltage or extra high voltage. 一种具有绝缘系统的电力电缆，该绝缘系统包括由热塑性材料制成的至少一层，所述热塑性材料基于与电介质流体混合的聚丙烯基体，该热塑性材料具有从15到50J/g的熔融焓并且该聚丙烯基体由选自以下的材料制成：具有从15到50J/g的熔融焓的异相乙烯丙烯共聚物(a)；或异相乙烯丙烯共聚物(a)与具有大于50J/g的熔融焓的丙烯均聚物或乙烯丙烯共聚物(b)的均质混合物。该电缆特别适合于在高电压或超高电压下进行电流输送。