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