The electrician explains that if the rat’s tail touches metal while it’s chewing on the wires, it’s enough to short out the fuse.

电工解释道，如果老鼠在咬线时，它的尾巴与金属接触就肯定可以将保险丝短路。

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The metal will fuse at a relatively low temperature.

这金属在不太高的温度下熔化。

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The product encapsulates a double metal temperature controller switch or a temperature fuse in a plastic tube with high frequency heat coupling method, and links lead and ends .

温控器、熔断器组件是将双金属温度控制开关，温度熔断器（温度保险管）采用高频热合的方式密封在一个塑料管（套）中，并接上引线、端子而成的成套组件。

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Among the materials found were a galvanized metal pipe, a fuse, coils of metal ribbon and several bags of chemical powders, it adds.

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According to the criminal complaint, police were called to a Texas residence on Tuesday where they discovered bomb-making components including a galvanised metal pipe, fuse, lighter and explosive powder in bags.

BBC: Texas fertiliser plant blast: Criminal probe launched

Saudi officials believe that the prince's assailant exploded the 100-gram device using a detonator with a chemical fuse, which would also not be detected by a metal detector.

CNN: Analysis: Similar explosive on plane used in Saudi attack