Product Overview
ZW7-40.5 series outdoor high-voltage vacuum circuit breaker (hereinafter referred to as "circuit breaker") is used in the three-phase power system with AC 50Hz and rated voltage of 40.5kV, as the purpose of splitting and closing load current, overload current and short-circuit current.
Normal Use Environment
◆ Ambient air temperature: upper limit +40°C, lower limit - -30°C (- general area), -40C (alpine area);
◆ Altitude: ≤1000m (if the altitude increases, the rated insulation level will be increased accordingly);
◆ Wind pressure: no more than 700Pa (equivalent to wind speed 34m/s);
◆ Seismic intensity: no more than 8 degrees;
◆ Pollution Grade: Class IV;
◆Daily temperature difference: no more than 25C.
