Main Applications:
JN17-12/40 indoor high voltage earthing switch is a kind of internationally advanced product produced by the company with advanced processes. It is of assembling structure. Through comprehensive examination, its performance has been verified to comply with the requirements in national standard GB1985-2014 high- voltage Alternating-current Disconnectors and Earthing switches and ICE129. It applies to 3-12kv three- phase, AC 50 Hz electric power syatem. It has short- circuit making capacity to protect other electrical equipment in the switchgear from being switchgear cabinet, or to provide earthing protection when overhauling the high voltage electrical equipment.
Operation Environment Conditions:
1.The altitude shall not exceed 1,000m
2.Upper limit of ambient air temperature is+40ºC and the lower limit is -25ºC
3.The seismic intensity shall not exceed 8
4.Daily average value of relative humidity shall not exceed 95% and monthly average value shall not exceed 90%
5.Pollution grade: 2