VBI 11kV Indoor withdrawable type Vacuum Circuit Breaker conforms to IEC62271-100:2001 high voltage AC circuit breaker relevant regulations.
Applying Ambient Conditions:
Ambient temperature, -25℃– +40℃
1. The height above sea level: ≤1000 m.
2. Relative humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%.
3. Saturated vapor pressure: the average pressure of a day should be no mare than 2.2kPa; the average pressure of a month should be no more than1.8KPa.
4. Earthquake intensity: not exceed 8 degrees
5. It should be Installed in the places without fire, explosion, serious filth, and chemical erosion and violent vibration.
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