Insulators for power lines

To fix the wires of overhead power lines (PTL) on the poles, special dielectric products, called insulators, are produced and used.

The purpose of high-voltage insulators for overhead power lines is to isolate wires from supports and other supporting structures.

This type of protection is used for fastening conductors, lightning protection cables on overhead power lines, as well as in switchgears of various power plants and substations.

Overhead line insulators are made from non-conductive materials such as porcelain, special glass and polymer composites.