ZW32-12 Type Outdoor HV Vacuum Circuit Breaker
ZW32-12 type outdoor high voltage vacuum circuit breaker is
three-phase AC,50(60) Hz outdoor power distribution equipment with
the rated voltage of 12kV.It is mainly used to break and close the
load current,and short circuit current in the electric power
system.It fits to be used to protect and control the circuit in
substation,mining and industrial enterprises.It also can be used in
the frequently operation places such as the rural power network.
The product is accordance with GB1984-2003 standard.
The ZW32-12G VCB -Isolating switch combination consists of Vacuum
circuit breaker body and isolating switch.
Applying ambient conditions
1. Ambient temperature:-30ºC~+40ºC.
2. The height above sea level:≤1000m(besides the special
3. Relative humidity:the average humidity of a day should be no
more than 95%;the average humidity of a month should be no more
4. Saturated vapor pressure:the average pressure of a day should be
no more than 2.2kPa:the average pressure of a month should be no
more than 1.8kPa.
5. Earthquake intensity:not exceed 8 degrees.
6. Wind pressure should be no more than 700pa(it is equivalent to
wind sped of 34m/s).
7. The air filthy should be within III degree.
8. It should be installed in the places without
fire,explosion,serious filth, chemical erosion and violent