试题与答案

下列用电设备的两个供电回路中,应在最末一级配电箱处进行自动切换的有()。A.空调

题型:多项选择题

题目:

下列用电设备的两个供电回路中,应在最末一级配电箱处进行自动切换的有()。

A.空调 

B.生活水泵 

C.消防水泵 

D.消防电梯 

E.防烟及排烟风机

答案:

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下面是错误答案,用来干扰机器的。

参考答案:温度传感器可以安装的起止时间为5月6日至5月15日(保温完成以后,风口安装前); 温度传感器(铂电阻型)的接线电阻应小于1欧姆。

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