Mechanical characteristics of Line Post Type Polymer Insulation Arm for 154kV

摘要

This paper describes the mechanical characteristics of a 154 kV line post type polymer insulation arm which has both the functions of a steel arm and a porcelain insulator of a presently used transmission steel tower. The 154 kV line post type polymer insulation arm consists of polymer composite insulators called units which include two horizontal units with an open angle for responding to a longitudinal load of 40kN and a suspension unit for responding to a vertical load. Its installation length is about 2.3m.