China 12kv Indoor High Voltage Rotary Isolating Switch with Earthing Device, Find details about China Isolating Switch, Indoor Isolating Switch from 12kv Indoor High Voltage Rotary Isolating Switch with Earthing Device
Item | 400A-12.5kA | 630A-20kA | 1000A-31.5kA | 1250A-31.5kA |
Rated voltage | 12kV | |||
Rated current | 400A | 630A | 1000A | 1250A |
Rated short time withstand current | 12.5kA | 20kA | 31.5kA | 31.5kA |
Rated short circuit duration | 4s | |||
Rated peak withstand duration | 31.5kA | 50kA | 80kA | 80kA |
Rated insulation level lightning impulse withstand voltage(full-wave peak value) | Pole to pole,to earth75 | fracture 85 | ||
Rated insulation level P.F. withstand voltage(1 min) | Pole to pole,to earth42 | fracture 48 |