| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a joint for DC coaxial power cables, which is excellent in return insulation performance without such a risk that an air gap might arise at the interface between a joint return internal semiconductor conductive layer and a return reinforcing insulating layer. <P>SOLUTION: In the joint for DC coaxial power cables, which includes a main reinforcing layer 23 that are larger in outside diameter than the main insulating layers of the cables, straddling the cable main insulating layers 3 and 3, outside the joint 21 for cable main conductors 1 and 1, and includes a joint main outer semiconductor layer 24 that straddles the cable main outer semiconductor layers 4 and 4, a joint return conductor layer that includes a joint 25 for the return conductor wires 5a and 5a of the cables, and a joint return internal semiconductor layer 26 that straddles the cable return internal semiconductor layers 6 and 6, outside of it, an air gap, which is formed between the return conductor wires 5a inside the joint return internal semiconductor layer 26, is charged with a filler 32. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
