Fire safety in the automation industry has always been a subject of great concern. Under the automatic operation of electrical appliances, sometimes there is a current overload or short circuit. The conductive metal parts of the terminal block or the connected conductors will be abnormally hot. At this time, if the shell material of the terminal block does not pass the safety test, it may be due to high heat. And produce flammable substances, which in turn lead to fire accidents.
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