Application Scenarios Of Pre-insulated Bushings In High-voltage Power Cables

In high-voltage power cable engineering, pre insulated sleeve is mainly used as an electrical insulation and electric field control device for connection nodes. During the laying process, when the cable extends from the main line to a branch line or connects to equipment, pre-laid pre insulated junction sleeve is often required to adapt to different voltage levels and environmental conditions. Especially in urban underground utility tunnels, tunnel laying, and projects with high elevation differences, the application scenarios of insulated joint sleeve will be more significant. According to the analysis of construction methods for high-voltage cables in long-distance high-elevation terrain, such environments bring challenges to the support and fixation of cable installation, and the connection performance requirements of the bushings also increase accordingly.