1
Ambient temperature: -25°C~+40°C
2
Altitude: less than 1000m
3
Relative humidity: Daily average < 95% (Water vapor pressure < 2.2kpa); Monthly average < 90% (Water vapor pressure < 1.8kpa)
4
Seismic intensity: less than magnitude 8
5
Outside wind speed: less than 35m/s
6
Application: Areas with no fire, explosion danger, or chemical corrosion