Operating Environment:

1. Ambient Air Temperature: -5°C to +40°C; daily average temperature must not exceed +35°C. If exceeded, derated operation is required based on actual conditions.
2. Altitude: 2000m or below.  
3. Relative Humidity: Not exceeding 50% at maximum temperature of +40°C. Higher relative humidity is allowed at lower temperatures, e.g., when humidity is 90% at +20°C, consider occasional condensation due to temperature variations.  
4. Installation Tilt: Not exceeding 5°, with the entire cabinet row relatively level (compliant with GBJ232-82 standard).
5. The switchgear must be installed in a location free from severe vibration, impact, and conditions that may cause undue corrosion of electrical components.