Huawei H12-411_V2.0 - HCIA-Data Center Facility V2.0

Protective grounding: Grounding refers to the direct connection with the earth, and a certain point of the live part of an electrical device or electrical circuit is connected to a large point. When the electrical device or other device is normal, a certain point of the uncharged part is artificially connected to the earth.

The role of the safety valve in the battery structure prevents excessive internal pressure from being excessive ____________ exclude.

____________ The main function is electric energy distribution, which distributes the front-end electric energy to various types of electrical equipment according to requirements, standards and

specifications, such as ups, Air conditioning, lighting system, etc.

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

The following ____________ Circuit breakers are usually used ITLow-voltage circuit breaker for the load.

Huawei chilled water air conditioners rely on ____________ to adjust the water flow.

The following statement is correct ____________ .

The leakage protector is mainly divided into electronic type and electromagnetic type according to the action mode.

High sensible heat ratio is the only difference between precision air conditioners and civil air conditioners.

The following are not part of the agreement ____________ .