Insulation Piercing clamp (Insulation Piercing Connectors) is mainly composed of waterproof Insulation shell, Piercing the blade, rubber gasket, bolt torque. As cable branch connection, insert the branch cable after good regional cap and determine the main line branch location, using the torque nut on the socket wrench tight wire clip, as the torque nut tighten, clamp and two pieces of the insulator of puncture blade fuses, at the same time, wrapped around the puncture of the blade arc sealant mat gradually close to the cable insulation, piercing the blade also started to puncture the cable insulation and metal conductor. When sealing rubber gasket and insulation oil seal degree and puncture the blade and the metal body contact best results, the torque nut off automatically, at this point, the installation is complete and sealing and electrical contact point to achieve the best effect.