JN17 12kv earthing knife ground switch for indoor
12kV series earthing ground switch
1.Used in indoor switchgear for the earthing protection.
2.Three phase earthing switch with phase pole distance of 210mm or 275mm, it is suitable 800mm MV indoor metal clad switchgear and 1000mm MV indoor indoor metal clad switchgear.
1.Altitude No more than 1000m
2.Surrounding temperature between -10°C to +40°C
3.Working situation no conductivity dust
4.No corrosive gas of effect insulation and destroy metal.
5.without violent vibration and striking.
6.Have no explosive danger and fire
Carton with size of 69*39*30mm, 20 pcs per wooden board