GW4 indoor high voltage isolation switch

Service condition environment

· Altitude 1000m ~3000m;

· The ambient temperature is not higher than +40℃, not lower than -30℃(not lower than -40℃ in high-cold areas);

· The wind pressure does not exceed 700Pa (equivalent to 34m/s wind speed);

· Seismic intensity does not exceed 8 degrees;

· The ice thickness is not more than 10mm;

· The installation site should be free of inflammable, explosive dangerous goods, chemical corrosion and violent vibration;

· Pillar insulator pollution level: common type is 0, anti-pollution type is Ⅱ.

· This series of isolation switches meet GB1985-89 "AC High voltage isolation switch" IEC129(1984) "AC isolation switch ground switch" and IEC694(1980)

The requirements specified in the "High voltage Switchgear and control Equipment Sharing Terms".