57-3 Post Isolators Price /33kv Post Insulator for High Voltage

57-3 Post Isolators Price /33kv Post Insulator for High Voltage. Strong electrical performance, no internal breakdown, strong anti fouling and flashover ability. High mechanical performance, high bending strength, good seismic resistance. Low operation and maintenance costs, basic maintenance free, lightweight. The design is adaptable and flexible, with loose requirements for tower materials and structures.