Program Lock for Xgn (SF6 fully enclosed switchgear) , Two Locks and One Key

This product is a kind of electric interlock device, can prevent electric misoperation of high voltage switch equipment. Mainly used for human operation indoor isolating switch, is adapted to realize it with electric interlocking between circuit break and other safety interlock need to implement compulsory interlock, prevent misoperation, is indispensable to power generation and power supply department for locking device. 

Specification:

1. Ambient temperature: at -25ºC to +40ºC , the special areas not less than -30ºC
2. Altitude: <1000m
3. Atmospheric condition: the daily average of relative humidity is less than 95%, the average monthly is less than 90%; the daily average of water vapor pressure is less than 2.2kPa, the average monthly is less than 1.8kPa.
4. Working environment: no dirty, no flammable and explosive chemical corrosive deposition, no salt fog.