HXGN-12 box type fixed metal enclosed switchgear (referred to as ring network cabinet for short) is an AC high-voltage complete electrical device with a rated voltage of 12kV and a rated frequency of 50Hz. It is mainly used for three-phase AC ring network, terminal distribution network and industrial electrical equipment, receiving and distributing electric energy. It is also suitable for box type substations.

1. Ambient air temperature: maximum temperature+40 ℃, minimum temperature - 15 ℃.

2. Humidity condition: daily average relative humidity: ≤ 95%. The daily average water vapor pressure shall not exceed 2.2kPa. The monthly average relative humidity is 90%. Monthly average water vapor pressure 1.8kPaa

3. Altitude: 4000m and below.

4. Seismic intensity: no more than 8 degrees.

5. The surrounding air shall not be obviously polluted by corrosive or combustible gas, water vapor, etc.

6. Places without frequent violent vibration.

7. In case of use beyond the normal conditions specified in GB3906, the user and the manufacturer shall negotiate.