| 摘要 |
<p>PURPOSE:To provide a submarine cable which can be laid just like normal landing work of submarine cable and in which low resistance sea earth can be established stably without requiring a dedicated earth wire. CONSTITUTION:The submarine cable comprises an insulation layer 2 for isolating the internal electric path from sea water and a single or double protective armors, wherein a single earth wire or earth layer 3 for power supply is provided on the outside of the insulation layer 2.</p> |
