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  4. Huawei.H12-411_V2.0.v2022-07-13.q74 Practice Test

Question 21

UPS It can purify the mains input, output stable AC, and protect the load.

    • Question 22

    TN-S The three-phase unbalanced current in the low-voltage power distribution system makes the protection line PS Generate voltage to ground.

    • Question 23

    Use POE When interface, it has two functions of communication and power supply.

    • Question 24

    In the low-voltage power distribution system,PE The function of the line is to provide a path for the fault current when the power supply system fails.

    • Question 25

    The following Does the model of air conditioner have an oil separator?
    • Other Version
    1412Huawei.H12-411_V2.0.v2023-11-03.q72
    2594Huawei.H12-411_V2.0.v2022-12-23.q75
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