| 摘要 |
PROBLEM TO BE SOLVED: To provide an overheat display plug which utilizes color change of a temperature-indicating agent to visually indicate, at an early stage, representative fire accidents originating from a plug, such as fire accidents caused by overheat due to tracking phenomena and fire accidents caused at a joint between a plug and a wiring by loosened screws and wiring contact failures.SOLUTION: The overheat display plug includes a temperature-indicating agent, whose color changes depending on temperature, applied to a surface cover of the plug, thereby visually predicting an overheat state by the color change upon abnormal overheating. |
