Outdoor AC high voltage isolating switch GW4-12（17.5/40.5）

This series of isolation switches meet the requirements of gb 1985-89 "AC high-voltage isolation switch" IEC129(1984) "AC isolation switch ground switch" and IEC694(1980) "high voltage switching equipment and control equipment sharing provisions". 

Working conditions

1. Altitude: 1000-3000m; 

2.Ambient temperature is not higher than +40"C, no less than -30℃ (cold area not less than -40℃);

3.The wind pressure shall not exceed 700Pa(equivalent to the wind speed of 34m/s);

4, the earthquake intensity does not exceed 8 degrees;

5.The icing thickness shall not be more than I 0mm; 

6. The installation site shall be free from inflammable, explosive and dangerous goods, chemical corrosion and violent vibration;

7. Pollution level of pillar insulators: 0 for ordinary type and II for anti-pollution type .

Main technical parameters

Outline and mounting dimensions