HGW5 type outdoor high-voltage isolating switch is used for three-phase AC 50Hz
outdoor high voltage electrical equipment, used for the line to switching under
voltage pressed no load condition, and electrical isolation the maintenanced high
voltage bus, circuit breakers and other electrical equipment and charged high
voltage line, can also be used for the opening and closing small capacitance or
inductance current. When the knife in the normal break position, can provide a
insulation distance consistent with safety requirements. Widely used in 35~110kV
substation.

The ambient temperature: upper limit +40℃,lower limit -40 ℃;
Altitude: no more than 3000m;
Wind speed: not more than 35m/s;
Earthquake intensity: do not exceed 8 degree;
Pollution level: no more than III;
No severe vibration, no corrosive gas, no fire, no explosion danger place.