Abstract: A sleeve of pliable, elastic material, such as silicone rubber or the like, intended to be turned inside out when being fitted onto a slender elongated core, for example an end of a high tension cable. The sleeve is provided on its outer surface, which surface is turned inwardly prior to fitting the sleeve on the core, with a plurality of densely located hollows (8) which are intended to accommodate a lubricant (12). The hollows may, for example, have the form of closely adjacent grooves extending around the sleeve (1) or of densely located craters.

Abstract: A termination for a cable (1) insulated with a solid polymer material, for high-tension AC comprises beaker-shaped caps of surface-leakage-current-resistant insulation material, fitted over the end of the cable. The bottom part of the first-fitted cap is surrounded by the opening of the second cap, and so on, each cap enclosing a separate gas-filled space. The opening of the first-fitted cap is closed off by an insulating disc. The separate spaces are filled with sulphur hexafluoride, SF.sub.6.