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AssigneesJapan Atomic Energy Research Institute, Hitachi Cable, Ltd.
InventorsYousuke Morita, Toshiaki Yagi, Waichiro Kawakami, Seiji Kamimura, Hideki Yagyu, Osamu Mochizuki, Takao Onishi
Estimating the term…
This invention relates to a method or apparatus by which comparatively low-voltage electric wires and cables laid at power stations and other locations can be diagnosed for deterioration of their polymer-insulation in a non-destructive way. The method or apparatus comprises applying a torsional force to the electric wire or cable, detecting the resulting repulsion as a torque, and estimating the degree of deterioration of the polymer-insulation in the electric wire or cable on the basis of the detected value of torque.
A method of estimating the degree of deterioration of an electric wire or cable having a polymer insulation comprising the steps of:
A method of estimating the degree of deterioration of a polymer insulation in an electric wire or cable, the method comprising the steps of:
Dependencies are inferred from the claim text.