Heat shrinkable cable accessories used on the cable exactly played what role, here we come from the cable structure analysis.

      Commonly used power cable consists of four main structural layer conductor, insulation, shielding and sheathing layer, heat-shrinkable cable accessories cable lines as part of the thermal cable terminal head, intermediate heat shrinkable cable connector, the cable must be four continuation of the structural layer respectively, and achieve a good connection conductor, insulation and sealing and sufficient mechanical strength to ensure the quality of the cable terminals and cable joints, in order to ensure the reliability of the entire power supply cable distribution network.

      In the cable terminations and joints, due to the cable metal sheath and shield off, making the distribution of the electric field is much more complex than the cable body, the presence of an electric field axial stress in the cable terminal, and therefore requires the use of heat shrinkable cable accessories to achieve a continuous and cable SPIDERS, namely a connection device to meet certain insulation and sealing requirements.