Electrical cables containing insulations based on ethylene polymers with a high resistance to the formation of water trees.

摘要

The invention relates to an electrical cable containing a cable insulation having high resistance to the appearance or the growth of water trees and having high ageing resistance. The insulation consists of an ethylene polymer (I) and 0.5 - 40% by weight of an ethylene copolymer (II) which contains, in addition to a preponderance of ethylene, a C3- to C6-alkenecarboxylic acid or a C4- to C6-alkenedicarboxylic acid or dicarboxylic anhydride included in the polymer, some of the carboxyl groups or carboxylic anhydride groups being converted to metal salts containing metals of the first or second group of the periodic system.