| 摘要 |
<p>PURPOSE:To monitor the generation of the overheating of electric equipment by providing a detection means detecting the light transmitted to the optical fiber arranged in contact with the current supply part of the electric equipment and also detecting the change of a light detecting state. CONSTITUTION:The light emitted from a light emitting part 19 is passed through the optical fiber arranged in contact with a conductor 16 held to a current supply state. The light transmitted through the transmission passage formed by the fiber 11 is detected by a light detection part 20 and the intensity of the light is detected at the same time. When the part of a terminal stand 14 becomes an overheated state for some reason and a temp. rise is generated in the conductor 15, the temp. rise is transmitted to the fiber 11 to bring about a change in the transmission quantity of the light transmitted through the fiber 11. Therefore, the change in the transmission quantity of light is developed as the lowering of the detection quantity of light in the detection part 20. As mentioned above, the temp. rise at the part of the terminal stand 14 is detected on the basis of the transmission quantity of the light transmitted through the fiber 11 and the generation of the overheating of electric equipment can be monitored.</p> |
