| 摘要 |
2137287 9325883 PCTABS00028 A corrosion resistant cable for use in electrical detection systems for fluid leaks in pipelines and the like includes a central electrical conductor (12), annular spacer (18, 30, 32) of electrically insulating material around the central conductor having a plurality of void spaces for receiving leakage fluid and an annular sheath (20), around the spacer in concentric relation with the central conductor formed of a plurality of electrically conductive wires (22), said wires having a coating (24) of corrosion resistant material for protection against water, acids, alkalis, solvents or other liquids or environment contaminants that may be present in the vicinity. An uninsulated wire (40) may be incorporated in the sheath to cooperate with an uninsulated central conductor (14) to detect conductive liquids, thereby allowing a leak detection system utilizing the cable to distinguish between leaks of conductive and non-conductive liquids.
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