... piercing gonnector, simple installation, need not strip the cable coat .2.Moment nut , piercing pressure is constant ... -seam frame,wet proof, waterproof, and anti-corrosion,extend the using life of insulated lead and connector ... current can be up to 15KA.5.Special insulated case body, resistance to illumination and environmental aging ... or Cu and Al. Insulation puncture clamp/Power cable clamp (IPC) 1KV