GW4-10/35/66/100 (DDW) -630~4000A Outdoor Double Column Horizontal Open High Voltage Isolation Switch

summary
The GW4-12 (17.5/40.5) series outdoor AC High-voltage isolation switch is suitable for outdoor AC 50HZ. In power systems with rated voltages of 17.5KV and 40.5KV, the supply lines are used as switching circuits when there is voltage and no load. The product meets the requirements of GB1985 and other relevant standards.

Normal usage conditions
1. Altitude of 1000-3000m.
2. The ambient temperature shall not be higher than+40 ℃ and not lower than -30 ℃ (not lower than -40 ℃ in high-altitude areas).
3. The wind pressure shall not exceed 700Pa (equivalent to a wind speed of 34m/s).
4. The seismic intensity shall not exceed 8 degrees.
5. The thickness of ice cover shall not exceed 10mm.
6. The installation site should be free of flammable, explosive hazardous materials, chemical corrosion, and severe vibration.
7. Pollution level of post insulators: ordinary type is level 0, and anti fouling type is level I.
8. This series of isolating switches meets the requirements specified in GB1985-89 "AC High Voltage Isolating Switches", IEC129 (1984) "AC Isolating Switches Grounding Switches", and IEC694 (1980) "Common Provisions for High Voltage Switchgear and Control Equipment".

Technical Parameter