GN30-12 series indoor HV rotation disconnecting switches is a new type disconnecting switches , which special designed for XGN2-12 HV switchgear , with rated voltage 12kV and three phase AC 50Hz indoor facility . It mainly open - closed circuit on condition with voltage and no load , make circuit breaker and main bus reliable and effective with disconnecting and earth , to guarantee safe for maintenance staff and component , avoid accident .

1.Ambient temperature : not higher than +40°℃, not less than -15°℃

2. Altitude : not exceed 1000m.

3. Relative humidity : daily average of not more than 95%, month average of not more than 90%. saturated vapor pressure daily average of not more than 2.2 kPa , month average not more than 1.8 kPa .

4. Earthquake intensity : not more than eight .

5. No fire , explosion hazard , serious filthy , chemical corrosion , as well as places of intense vibration .