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Using conditions of vacuum interrupter

There are following using conditions of Vacuum Interrupter for reference:

 

1. The indoor ambient temperature is not higher than +40℃ and not lower than -25℃; the outdoor ambient temperature is not higher than +40℃ and not lower than -40℃.

2. The altitude does not exceed 1000 meters (except for special altitude requirements).

3. The daily average value of indoor relative humidity is not more than 95%, and the monthly average value is not more than 90%. Outdoors, there should be corresponding anti-condensation measures.

4. There is no place with fire, explosion, serious pollution, chemical corrosion and severe vibration.

5. The earthquake intensity does not exceed 8 degrees.

 earthquake intensity

6. When used for switching capacitive or inductive loads such as capacitor banks, high-voltage motors, arc furnace transformers, etc., corresponding overvoltage protection measures should be adopted. Among them, it is recommended to give priority to resistance-capacitance protection for inductive loads.

7. Other requirements should meet GB/T11022-1999.

When the above-mentioned normal use conditions cannot meet the use requirements, the user shall negotiate with the manufacturer.

Only with high-quality vacuum tubes (Interrupter), can vacuum circuit breakers be more reliable.


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