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AssigneeFujikura Ltd.
InventorsKazuo Amano, Shotaro Yoshida
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In an optical fiber laying structure for an electric power cable line trouble occurrence location detecting system for detecting a trouble occurrence location by laying an optical fiber along an electric power cable line, the portion of the optical fiber laid along the cable of one of the two adjacent sections is superposed on the portion of the optical fiber laid along the cable of the other sections in an area in the vicinity of the boundary of the electric power cable line. Thus, if a temperature rise occurs due to a trouble such as a ground-fault in the boundary area, the temperature peak position, i.e., the trouble occurrence location can be detected by the two different optical fibers. Therefore, the trouble occurrence location in the boundary area can be accurately detected.
An optical fiber laying structure for an electric power cable line trouble occurrence location detecting system for detecting a trouble occurrence location by laying an optical fiber of a temperature detector of a Raman backscattering optical fiber distribution type temperature sensor along an electric power cable line and detecting a temperature rising position of the power cable line, wherein;
An optical fiber laying structure for an electric power cable line trouble occurrence location detecting system for detecting a trouble occurrence location by laying an optical fiber of a temperature detector of a Raman backscattering optical fiber distribution type temperature sensor along an electric power cable line and detecting a temperature rising position of the power cable line, wherein;
An optical fiber laying structure for an electric power cable line trouble occurrence location detecting system for detecting a trouble occurrence location by laying an optical fiber of a temperature detector of a Raman backscattering optical fiber distribution type temperature sensor along an electric power cable line and detecting a temperature rising position of the power cable line, wherein;
Dependencies are inferred from the claim text.