Overview
GW4-12 (17.5/40.5) series outdoor AC high-voltage disconnector suitable device in outdoor AC 50H2. The rated voltage is 17.5KV and 40.5KV respectively, and the line is used as an opening and closing circuit when there is voltage and no load. The products meet the requirements of GB1985 and other relevant standards.
Conditions of Normal uUse
1. Altitude 1000-3000m.
2. The ambient temperature is not higher than +40 °C and not lower than -30 °C (not less than -40 °C in alpine areas).
3. The wind pressure should not exceed 700Pa (equivalent to the wind speed of 34m/s).
4. The seismic intensity does not exceed 8 degrees.
5. The thickness of the icing is not more than 10mm.
6. The installation site should be free of flammable, explosive dangerous goods, chemical corrosion and severe vibration.
7. Pollution level of pillar insulator: ordinary type is grade 0, antifouling type is grade I.
8. This series of disconnectors meets the requirements stipulated in GB1985-89 "AC High Voltage Disconnector", IEC129 (1984) "AC Disconnector Grounding Switch" and IEC694 (1980) "Common Terms of High Voltage Switchgear and Control Equipment".
