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1999年12月的一天,河北省藁城机械厂发生一起触电事故.一台10kW的异步电动机因接线松动而出现打火现象,该厂电工按下了停车按钮.因配电柜距电机配电箱较远,该电工未断开主开关,直接去接线.他刚一接触电机就听“啊” 的一声,便倒在那里不动了.上身靠在电机上,一只手还捏着线头.旁边的一位电工急忙拉下主开关,这名电工才得以解救.电源开关未断开进行检修属违章作业,但接触器触点断开后电动机为何还带电呢?
One day in December 1999, a power accident occurred in Yuncheng Machinery Plant in Hebei Province.A 10kW asynchronous motor appeared ignition due to loose wiring, and the factory electrician pressed the stop button. Far away from the box, the electrician did not open the main switch, go directly to the wiring .He just came into contact with the motor to hear “ah”, and fell there and did not move.The upper body leaned on the motor, one hand also pinch the thread An electrician next to the hurriedly pulled down the main switch, the electrician was able to save the power switch is not disconnected for maintenance is illegal operations, but the contactor contact disconnect the motor why it is also charged?