The insulation puncture wire clamp is mainly composed of a reinforced shell, puncture blade, sealing gasket, waterproof silicone grease, high-strength bolt, torque nut, and cable terminal cap. When the cable needs to be branched or connected, the cable branch wire terminal is inserted into the waterproof terminal cap. After determining the main line branch position, the torque nut on the wire clamp is tightened with a socket wrench. During the process, the contact blade will puncture the insulation layer of the cable and make contact with the conductor. The sealing gasket ring presses around the puncture position of the cable. The silicone grease inside the shell overflows. When the torque reaches the set value, the nut torque mechanism falls off, and the main line and branch line are connected. The waterproof performance and electrical effect meet the standard requirements.