The use of environmental conditions:
1. Altitude: ≤2000m; Earthquake intensity: not more than eight
2. Air temperature: not higher than +40℃, not less than -30℃. The daily average of relative humidity not more than 90%, monthly average not more than 90%.
3. The installation site with frequent and violent vibration is not suitable for the installation site with water vapor, gas, chemical corrosive deposition, salt spray, dust and dirt, fire and explosion hazards that obviously affect the perfo...