1.mine explosion-proof, 2.high-voltage, cable connector Purposes Explosion proof (high pressure) cable connector applies for coal dust, methane, and ... and domestic power switch, In AC 3.3kV,10kV,1.12kV, frequency 50Hz line, as high pressure switches or ... use, flexible, reliable, it is the most advanced mine cable connector at present, applicable to flammable, explosive, poor environment Place. ...