ZN63A-12 (VS1) type indoor high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is used for indoor high voltage switch equipment of power system, as a protection and control unit of network equipment, industrial and mining enterprises power equipment, suitable for the place of frequent operation at rated working current or many times of breaking short-circuit current place. The circuit breaker uses the integrated design of actuator and the circuit breaker body, not only can be used as a fixed install unit, also can be equipped with special chassis, hand car unit.
The use of environmental conditions
The environment temperature: upper limit+40℃, lower limit -15℃ (allow storage at -30℃);
Altitude: no more than 2000m;
Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;
Saturated steam pressure: daily no larger than 2.2×10-3Mpa, monthly average is not greater than 1.8×10-3Mpa;
Earthquake intensity does not exceed 8 degrees;
No fire, explosion, pollution, chemical corrosion and severe vibration place