Working Condition
Ambient environment temperature within -15~40 Daily average temperature not exceed +35
Daily average related humidity not exceed 95%, monthly not exceed 90%
The altitude not exceed 1000m
Earthquake intensity is not more than 8 degree horizontal acceleration
The ambient air without contamination of erosion and combustible gas, vapor, etc
Technical Data
Rated voltage: 40.5kV
Rated current: 1250A, 1600A, 2000A, 2500A
Rated short circuit breaking current: 25kA, 31.5kA
One minute power frequency withstand voltage (kV): 95
Lighting impact withstand voltage (kV): 185
4s rated short-time withstand current (effective value): 25kA, 31.5kA
Rated peak value withstand current (peak value): 63kA, 80kA.
Rated short circuit making current (peak value): 63kA, 80kA
Rated operating voltage: AC110/220V, DC 110/220V




