An unrecoverable line-type temperature sensitive detector...

Details An unrecoverable line-type temperature sensitive detector... An unrecoverable line-type temperature sensitive detector...

G - Physics

01

K

G01K 11/06 (2006.01) G08B 17/06 (2006.01)

Patent

CA 2598254

The present invention relates to an unrecoverable line-type temperature sensitive detector having short-circuit fault alarm function, comprises a detecting cable comprising at least two detecting conductors disposed in parallel and a fusible insulation layer, a resistor, and a resistance signal measuring device, wherein the detecting cable further comprises a semiconductor layer, and wherein the semiconductor layer and the fusible insulation layer are disposed between the detecting conductors so as to space the detecting conductors apart. The detector of the present invention may distinguish short-circuit fault from short circuit caused by fire, and thus overcome the disadvantage of not distinguishing short-circuit fault from short-circuit due to fire in the conventional detector. Therefore, the problem of lack of short-circuit fault alarm function in the prior art is resolved. Accordingly, the present invention improves the reliability of unrecoverable line-type temperature sensitive detector.

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