Why do high-voltage lines use polymer insulators?

Why do high-voltage lines use polymer insulators?

Polymers play a vital role in modern electrical systems, especially in high-voltage lines. The ability of this material to block the passage of electrons means that the insulators made of it will have insulating properties.Although there is no electrical insulating material that can completely isolate, polymers such as polyethylene and polypropylene can be said to…