6.6 kV XLPE submarine cable with optical fiber sensors to detect anchor damage and defacement of wire armor

The Kansai Electric Power Co. Inc. and Fujikura Ltd. have developed a 6.6 kV XLPE submarine power cable with optical fiber sensors to detect anchor damage and defacement of wire armor. The cable was installed between Kata and Tomogashima island in Wakayama prefecture, Japan. The ability to detect cable damage was confirmed by compression tests, curved tensile tests using the CIGRE-recommended method, and loop tests. Also, in this power cable, a distributed optical fiber sensor was built-in to measure cable temperature. This report shows the results of these tests and the outline of the cable installation.< >