The environmental requirements for the use of high and low voltage control cabinets are:

1. The ambient temperature does not exceed 40℃, and the minimum ambient air temperature is -5℃, -15℃, -25℃.

2. The altitude does not exceed 1000M.

3. Temperature: The average value of the relative temperature measured within 24h does not exceed 95%; considering the temperature change, moderate condensation is allowed.

4. The surrounding air is not significantly polluted by dust, smoke, corrosive and or flammable gases, steam, and salt spray.

The environmental requirements of high and low voltage control cabinets are also the environmental requirements of high voltage frequency conversion cabinets, high and low voltage complete sets of equipment and other chassis cabinets. The high and low voltage control cabinet is the electrical equipment that assembles some protective devices such as switch and circuit breaker into a whole.