Category H12-411_V2.0

Q93. MCB Circuit breakers can be divided into different tripping characteristics B, C, D, Z, K Level, for IT For load, you should use ____________ class Tripping characteristics.

Q94. The basic principle of infrared heaters is that infrared rays heat water to boiling, thereby generating steam.

Q95. In the dynamic environment monitoring system, the user queries the alarm information of the refrigeration equipment through the ____________ function.

Q96. Low-temperature components can improve the continuous low pressure caused by low-temperature start, so that the air conditioner can start normally.

Q97. MCB The main functions of the circuit breaker include circuit breaker protection and overload protection.

Q98. During the construction process, carry out low-voltage live work ____________, should be used
____________ .

Q99. Through the query ____________, the user can understand the operation of the device.

Q100. Dynamic ring monitoring system can be applied to ____________ .

Q101. In the case of ____________, ups Will work in static bypass mode.

Q102. same MCB Rated ultimate short-circuit breaking capacity of circuit breaker LCU Generally less than the rated operating short-circuit breaking capacity LCS.

Q103. The leakage protector is mainly divided into electronic type and electromagnetic type according to the action mode.

Q104. At present, storage batteries are mainly installed in racks and cabinets in data centers.

Q105. In the access control system interface, the functions that can be realized are ____________ .

Q106. The following are air-cooled row-level air conditioners ____________ .

Q107. UPS The inverter component can realize the conversion from AC to DC.

Q108. The components of Huawei’s dynamic environment monitoring system are ____________ .

Q109. 12V The battery is made of 6 indivual 2V It is composed of battery cells.

Q110. The following ____________ options do not belong to the characteristics of direct air-cooled air-conditioning.

Q111. Huawei Monitoring System NetEco Supports the concept of user groups, and implements role-based user group management. A user group is a group of user-level collections with the same operation permissions, and different user groups have different permissions.

Q112. If ups The capacity is 20KVA, Then in normal work,ups The front-end input capacity may be ____________ .

Q113. The humidifier used in Huawei’s row-level precision air conditioner is an infrared humidifier.