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ZHW-126/T3150-40

Breaker, disconnector, grounding switch, built-in current transformer and incoming and outcoming bushing such as combination of grounding are put in metal shell, filling certain pressure SF6 gases as insulating medium composed of complete sets of equipment, which applies to AC three-poles 50Hz, rated voltage 72.5~126KV power supply system.

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Service and Installation Conditions
Installation place: outdoor/indoor
Air temperature:-40℃～+40℃
Elevation: ≤1000m(No limitation for special order)
Daily range of temperature:25℃
Relative humidity (RH): daily average:≤95%,monthly average:≤90%(25℃)
Wind speed:≤35m/s(wind presssure ≤700Pa)
Irradiance:≤0.1W/cm(wind speed:0.5m/s)
Thickness over ice: ≤10mm
Creepage distance:31mm/kv