| abstract |
(57) [Summary] [Purpose] It is an object of the present invention to provide a cable that is easy to manufacture and capable of highly accurate water intrusion detection, and a tape used for the cable. [Structure] The cable has a water absorption reaction tape layer 6 that absorbs water to generate heat or absorb heat on the cable core 1. The optical fiber core wire 7 for the sensor is spirally wound on it, Further, an outer cover 7 is provided on the outer cover. The water-absorption reaction tape layer 6 includes a water-absorption reaction tape 9 having a water-absorption reaction layer 9b containing, on a base material 9a, a substance that reacts with an absorbent polymer and water to generate heat or absorbs heat. It is constructed by winding with the side facing outward. |