Outdoor AC Gang isolator switch 11kv/400A-33kv/600A used in 3 phase AC
50/60Hz power circuit, it is used as switching on and switching off at the
voltage with no load. It apply to IEC standard. IEC60964: 1996, IEC62271-102:
2002.

Altitude:1000 to 3000m.
Ambient temperature:-30 celsius to +40celsius
The relative humidity of air:monthly humidity not more than 90%,daily humidity
not more than 95%.
Wind pressure:not more than 700Pa( wind speed is 34m/s).
Amplitude:earthquake degree 8
Environmental pollution degree:degree III