Technical requirements for safety of the hottest e
2022-08-06- Detail
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
join the punch in team to sprint for the second construction company
2019 level II constructor exam will be held on May 25 and 26. The 2019 school's coaching course combines years of successful coaching experience, as well as the rules, key points and difficulties of the level II constructor exam, integrates advanced teaching concepts, and makes every effort to help you pass the exam
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the relevant upper part adopts direct and indirect loading methods. Recommendation:
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