What are composite insulators?

Composite insulators, a special type of safety insulation control, consist of continuous layers of different insulating materials, forming a multi-layered insulation structure. These insulators are typically composed of alternating layers of metals (such as copper) and insulating materials (such as polyurethane), exhibiting excellent electrical insulation properties. The main structure of a composite insulator is generally metal, while the insulating layers are composed of different insulating materials layer by layer, thus providing highly efficient electrical isolation.

In addition to excellent electrical performance, composite insulators also feature small size, light weight, strong resistance to pollution, and good sealing performance. These characteristics make them widely used in various fields such as high-voltage cables, steelmaking, oil fields, and marine engineering, playing a vital role in protecting electrical equipment and extending its service life.