are used at the end of distribution lines or at sharp turns where there is excessive tensile load on the lines. These insulators can be mounted either in the vertical or horizontal position.
Insulators are widely used devices, and their connecting fittings are also required to be interchangeable. In addition, the technical standards of butterfly insulators also require various electrical, mechanical, physical and environmental condition change tests on insulators according to different models and service conditions, as well as environmental condition change tests, so as to test their performance and quality.
