| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a dc coaxial power cable connecting portion which prevents an return path internal semiconductor layer 33, generated by taping mold, from falling into a gap S between return path conductor element wires 5a in the connection portion. <P>SOLUTION: The dc coaxial power cable connecting portion is configured, wherein a connecting portion 25 of a return path conductor 5 is disposed outside a connection portion main reinforcing insulating layer 23, which is larger in the outside diameter than that of the main insulating layer 3 of a cable located outside the connection portion; a connection portion return path internal semiconductor layer which extends across return path internal semiconductor layers of both cables is formed outside the connection portion; a connection portion return path reinforcing insulating layer extending across return path insulating layers of both cables is formed. The connecting portion return path internal semiconductor layer and the connection portion return path reinforcing insulating layer have a portion made by thermally shrinking a heat-shrinkable insulation tube 32, with an inner semiconductor layer and portions 33 and 34 formed by taping molding. At least a metal taping layer 31 is formed between the portion 33 and 34, formed by taping molding and return path conductor wire elements 5a. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
