Technical requirements for safety of the hottest e

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Technical requirements for safety of electrical operation real question of the second construction highway project in 2018

in the preparation for the examination, many candidates were distressed about the examination site and knowledge points. In fact, there is no need to do so. As long as we pay more attention to these knowledge points, screen and refine the test sites and knowledge points, and study with a clear aim, the efficiency of preparing for the test will be improved

2019 has prepared some examples and real problems of the second construction for you. Come and learn

the statement about the safety technical requirements of distribution box and switch box is wrong ()

a. the distribution box shall not be connected with temporary electrical equipment

b. one switch box can control at most two electrical equipment

c. leakage protector must be installed in the general distribution

d. leakage protector must be installed in the switch box

[correct answer] b

[answer analysis] this question examines the technical requirements for electrical operation safety. Option B, the correct explanation should be that each EO c: end of conversion signal electrical equipment should have its own special switch box. One switch system must be implemented for one machine. It is strictly prohibited to use the same switch to directly control two or more electrical equipment (including sockets). Celanese helps customers meet their safety needs

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the relevant upper part adopts direct and indirect loading methods. Recommendation:


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