The humidifier used in Huawei's row-level precision air conditioner is an infrared humidifier.
B
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.
C
The core components of the refrigeration system mainly include ____________ .
evaporator,
condenser,
compressor,
expansion valve
In the dynamic environment monitoring system, viewing the detailed alarm information can help
locate the source of the alarm.
A
Data centers usually use gas fire protection systems.
A
The following are indirect contact heat and moisture treatment equipment ____________ .
surface
cooler, finned air
heater, evaporator
The parameters that can reflect the energy efficiency and energy use efficiency of the data center are
____________ .
PUE
____________ 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.
Low-voltage
power distribution
system
The surface cooler controls the indoor temperature and humidity through the heat exchange
between the refrigerant and the indoor air.
B
At the end of the discharge of lead-acid batteries, the voltage drops, and the positive and negative
active materials are converted into ____________ .
PbSO4