| 摘要 |
<p>A cable joint for inter-connecting two power cables (1, 2) in a junction body (3) is described. The junction body is made water impervious and is electrically shielded owing to a two parts metallic member (14; 15, 16) that is connected to the lead sheaths or metallic screens (8, 9) of the power cables. The shielding is however interrupted by a shield break (17) located next to the junction body, and an earthing connection and/or cross-bonding cable is electrically connected to each part of the member, i.e. at both sides of the shield break. This cable may be of the 2-single-core or of the coaxial type and all the external earthing connections and/or cross-bonding are concentrated at one end of the cable joint. An insulated conductor (20) runs from one end to the other of the cable joint over the junction body (3) but inside the metallic member. By locating the insulated conductor between the junction body and the metallic member, the outer protection (23) of the cable joint may be applied closer to this member so that the outer diameter of this joint is reduced. Also the amount filling material, e.g. polyester resin, the weight and the cost are thereby reduced, and the cable joint is easy to handle. <IMAGE></p> |
