Exist UPS in the system, the most comprehensive description of the role of the inverter circuit is
____________ .

The main fire extinguishing agent used in the data center fire protection system is ____________ .

Climbing personnel must be equipped with necessary safety belts that meet the safety requirements, and use them correctly and reasonably according to the use regulations, while being supervised.

During the construction process, carry out low-voltage live work ____________, should be used
____________ .

ABC Circuit breakers are mainly used IT Load front end, such as ups Inside the output cabinet.