The insulation piercing clip is a product specially designed for the connection of low-voltage insulated wires (cables). It connects the main wires and branch wires by piercing the insulating layer of the wires (cables). Simple, insulated wires do not need to be stripped. 2. The clip is a self-sealing structure, which is moisture-proof, waterproof, and anti-corrosion, which prolongs the service life of the insulated wire and the clip. Loading 6KV voltage at a depth of 30cm underwater for 1 minute, the insulation has no breakdown phenomenon. 3. The product adopts a special torque nut, and its stable puncture pressure can not only ensure effective puncture, but also ensure small contact resistance and thermal cycle state without damaging the wire (cable). The construction quality is not affected by the technical level of the construction personnel to ensure reliable connection. 4. The contact blade is made of tin-plated copper alloy, which can not only ensure sufficient contact surface, but also is suitable for the transition of copper and aluminum. 5. The insulating shell is made of glass fiber to enhance the strength of the body and resist light and environmental aging. Dielectric strength can reach 6KV. Mechanical experiments showed that the clip did not break under the breaking force of the wire. 6. The electrical contact resistance is small. In the case of high current, the temperature rise of the wire clip is less than that of the connecting conductor. The inrush current can reach 15KA. 7. The puncture surface of the wire clip adopts an arc design, which is suitable for the connection of the same diameter and different diameter wires (cables), and the connection range is wide, ranging from 1.5mm2 to 240mm2.