试题与答案

预防电动机火灾的措施有()。A、正确安装和使用。对潮湿及灰尘较多的场所应采用封闭型;

题型:多项选择题

题目:

预防电动机火灾的措施有()。

A、正确安装和使用。对潮湿及灰尘较多的场所应采用封闭型;易燃易爆场所采用防爆型。电动机的机座采用不可燃材料,四周不准堆放易燃易爆物;

B、经常检查维修,清除内部异物,做好润滑,定期测试绝缘电阻,发现缺陷及时进行处理;

C、,大型电动机增设绕组温度保护装置等;

D、合理设置保护装置。一般设短路、过负荷及缺相保护。

答案:

参考答案:A, B, C, D

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