Altitude does not exceed 1000 meters
The air temperature in the equipment room should be kept at 5 degrees Celsius to 40 degrees Celsius.
Ambient air does not contain corrosive, flammable gases
The power supply voltage fluctuates within the rated value deviation by no more than plus or minus seven percent, and the operating frequency fluctuation and the nominal value deviation do not exceed plus or minus one percent.
The machine room requires fire equipment with good lighting