I. Overview

  GW4-35D(W), GW4-35IIID(W) outdoor AC high-voltage isolating switch (hereinafter referred to as the isolating switch) is a three-phase 50Hz outdoor AC high-voltage electrical appliance, which is used for splitting and circuitping when there is no load.

  GW4 AC high-voltage isolating switch is suitable for power system with rated voltage of 126kV, for no-load switching of high-voltage lines and for electrical isolation of electrical equipment such as high-voltage busbars and circuit breakers and high-voltage lines.

 Second, the product environmental conditions:

2.1 The altitude does not exceed 1000m.

2.2 The ambient temperature is not higher than +40 °C, not lower than -30 °C, and the alpine region is not lower than -40 °C; the daily temperature difference is not more than 15 °C.

2.3 The installation site is free of flammable materials, explosion hazard, chemical corrosion and severe vibration. The wind pressure does not exceed 700Pa (equivalent to wind speed 34m/s).

2.4 The seismic intensity does not exceed 8 degrees.

2.5 The thickness of ice coating does not exceed 10mm.

2.6 Stain-resistant products are used in areas I, II, III and IV.

2.7 Technical standard The isolating switch complies with the GB1985-89 AC high voltage isolating switch and grounding switch standard.

    GW4-35, GW4-35III GW4-35W, GW4-35IIIW GW4-35D, GW4-35IIID GW4-35DW, GW4-35IIIDW GW4-35IID GW4-35IIDW Note: GW4-35 is ungrounded, GW4-35D is grounded The switch and GW4-35IID are double grounded.

        GW4-35(W), GW4-35D(W), GW4-35IIDW are pollution-resistant products.

    HGW4-35, HGW4-35III HGW4-35W, HGW4-35IIIW HGW4-35D, HGW4-35IIID HGW4-35DW, HGW4-35IIIDW HGW4-35IID HGW4-35IIDW Note: HGW4-35 is ungrounded, HGW4-35D is grounded The switch and HGW4-35IID are double grounded.

        HGW4-35(W), HGW4-35D(W), HGW4-35IIDW are stain-resistant products.