The cable head is a device connected to the cable. For example, cable joint refers to the device connecting cable and cable, which plays the role of making circuit unimpeded, ensuring insulation, sealing and mechanical protection between or between phases. The cable terminal joint is installed at the end of the cable line to ensure the electrical connection of the power grid or other electrical equipment, and to provide a device as the insulation of the conductor core of the cable.

Cable accessories refer to the components and materials used to install or make various cable joints and terminals in cable lines. Here accessories refer to components and materials.

Cable and cable accessories are manufactured in factories. The forming of cable head is manually operated under field conditions. The environmental conditions are very different. The skilled degree of workers is different. Therefore, the quality of cable head is not only related to the quality of cable accessories, but also to the installation conditions.

Cable accessories have their unique characteristics. Whether they are heat shrinkable cable accessories, cold shrinkable cable accessories or prefabricated cable accessories, a complete product does not exist before installation. The most perfect cable accessories products are only the combination of some components and materials. Only these components and materials can be installed according to the installation process requirements. Installed in the cable line, complete cable accessories must have a cable, this is the cable head.