| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the terminal part of a high-voltage power cable for simplifying a terminal treatment operation and reducing operation time, and at the same time preventing electrical characteristics from deteriorating due to gaps. SOLUTION: The sheath of the terminal part of a high-voltage power cable 1 is peeled off stepwise for successively exposing a shielding layer 14 consisting of a cable conductor 11, an insulation layer 12, an external semiconductor electric layer 13, copper tape winding layer, and the like, and a normal temperature shrinkage type tube 2 covers the terminal part of the cable 1. The normal temperature shrinkagable tubing 2 is provided with a stress cone part 21 where a cylindrical tube body is partially made thick, and a rising part 31 of a semiconductor electric layer is incorporated into the stress cone part 21. The rising part 31 of the semiconductor electric layer is made into a cone shape, where the diameter is expanded gently in one direction, thus achieving electric field relaxation function.</p> |
