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01
ZW20-12 type outdoor column high voltage vacuum circuit breaker
Product Parameter
Product name |
ZW20-12 outdoor vacuum circuit breaker |
Product brand |
spor |
Voltage level |
12KV |
Rated current |
50A |
Rated frequency |
50Hz |
Power frequency withstand voltage (1min): |
phase to phase, ground/fracture 42kV |
Lightning impulse withstand voltage (peak) |
75kV |
Secondary circuit 1min power frequency tolerance |
2kV |
Normal Use Environmental Conditions
1. Ambient air temperature :-40℃~+40℃; Daily temperature difference: daily temperature change is not more than 25℃;
2, the wind speed is not more than 35m/s;
3, no flammable, explosive danger, strong chemical corrosion (such as various acids, alkali or smoke, etc.) and violent vibration places;
4, altitude :≯1000m;
5, covering thickness :10mm;
6, earthquake intensity :≯8 degrees;
7.Neutral grounding mode of the power grid: neutral point is not grounded, neutral point is grounded by arc suppression coil, neutral point is grounded by low resistance.
