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随着电力事业的发展,陕西省西乡县有80%的乡通了电。因此,在农村用电动机作动力进行固定作业日益普遍。然而一些操作者常因听不出电动机异常响声而不能判断其故障。 1994年冬,沙河镇有一台电动机发出“嗡嗡”声,不能起动,检查结果是一相保险丝烧断。
With the development of power industry, 80% of township townships in Xixiang County of Shaanxi Province have power. Therefore, the use of electric motors in rural areas as a fixed operation is increasingly common. However, some operators often can not judge the fault because they can not hear the abnormal sound of the motor. The winter of 1994, Shahe Town, a motor issued “Buzz ” sound, can not start, check the result is a one-phase fuse blown.