The wall bushing is an epoxy resin APG process pressure gel molding structure,  It is mainly used in complete sets of equipment with a rated voltage of 10KV and below for insulation isolation and excessive connection. The casing is resistant to dirt and moisture, no special maintenance is required, and only the surface dirt is cleaned regularly. The busbar passes through the hole during installation. High-voltage bushing is an essential component on high-voltage switchgear, and its performance will directly affect the insulation performance and operation of high-voltage switchgear.