Optical fiber laying structure for electric power cable line tro

Details Optical fiber laying structure for electric power cable line tro Optical fiber laying structure for electric power cable line tro

1991-07-09

1993-01-12

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

25022729, 374161, G01J 510, G02B 610

Patent

active

051784653

ABSTRACT:
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.

REFERENCES:
patent: 4298794 (1981-11-01), Snitzer et al.
patent: 4432599 (1984-02-01), McMahon
patent: 4767219 (1988-08-01), Bibby
Patent Abstract of Japan, vol. 8, No. 259 (P-317)(1696), Nov. 28, 1984.
Patent Abstract of Japan, vol. 14, No. 27 (P-992), Jan. 19, 1990.
Patent Abstract of Japan, vol. 7, No. 142 (P-205)(1287), Jun. 22, 1983.
Patent Abstract of Japan, vol. 10, No. 68 (P-437)(2125), Mar. 18, 1986.

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