FZN25 Indoor high voltage load break switch

FZN25 Indoor high voltage load break switch 

Application
It is used in the ring network city distribution and industrial equipment of 12KV and three-phase AC 50Hz to cortrol load and short-circuit. Because the switch with fuse protecting transformer etc more reliably than circuit breaker. It is especialy suitable for ring network clouble radial distribution and package substation.

Standard
a. GB3804-90 <<3-63KV AC H.V load switch>>.
b. GB16926-1997 <<High-voltage alternating current switch-fuse combinations>>(eqv, IEC62271-2002).
c. GB1995-89 <<AC H.V isolate switch and earth switch>>.

Operating environmental conditions

1.Altitude: ≤1000m

2.ambient air temperature: not higher than +40°C,not lower than-25°C

3.Relative humidity: daily mean is not more than 95%, monthly mean is not more than 90%

4.Earthquake intensity: not more than 8°

5.no fire, explosion hazard, chemical etching and intense vibration

6.Pollution grade: II

7. Ambient air shouldn't be polluted by corrosive or flammable gas and vapor.