Abstract: A cable for transmitting electrical power at a voltage between 5 and 49 kV includes a conductive cable core and an insulation layer for insulating the cable core, the insulation layer including from 50 to 99.9% of cross linked polyethylene, and from 0.1 to 50% of ethylene-alkyl(meth)acrylate and/or ethylene vinyl acetate. In at least one embodiment, the insulation layer is provided with a strippable outer semi conductive screen, which includes from 20 to 80% by weight of a composition of at least one copolymer selected from the group consisting of ethylene-alkyl (meth)acrylate carbon monoxides. The combination of materials in the insulator and the semi conductive screen provides for high water-tree resistance of the insulator and strippability of the semi conductive screen.

Abstract: A sealing ring (14) is adapted to seal an annular gap (15) between a socket end (11) and a spigot end (12), the socket end having a circumferential groove (13) for receiving the sealing ring. Due to manufacturing tolerances, the radius of the groove (13) is between a minimum value R?min and a maximum value R?max, and the radial gap width of gap (15) is between a minimum value Tmin and a maximum value Tmax. The sealing ring (14) comprises a sealing element (16) and a holding element (17) which is connected thereto and which is more rigid than the sealing element (16) but is so elastically deformable as to allow insertion of the sealing ring (14) into the groove (13). The sealing element (16) comprises a first sealing part for sealing against the socket end (11) and a second sealing part (19) for sealing against the spigot end (12).