polymer insulator is a type of electrical insulator made from composite materials, typically consisting of a fiberglass core rod surrounded by a weather-resistant silicone rubber or EPDM housing. These insulators are widely used in modern power transmission and distribution systems due to their lightweight design, high mechanical strength, and superior performance in polluted or high-moisture environments. Polymer insulators offer excellent hydrophobic properties, which help prevent the formation of continuous water films on the surface, thereby reducing the risk of flashovers. Unlike traditional porcelain insulators, polymer insulators are less brittle and more resistant to breakage and vandalism, making them ideal for use in harsh outdoor conditions and areas prone to contamination.
Advantages of polymer insulators:
As the replacement of porcelain insulators, silicone rubber composite insulators have many advantages:
1. Excellent anti-pollution performance, suitable for high polluted area
2. Free of cleaning, economical maintenance and suitable for difficult maintenance area
3. No need of zero value check
4. Llight weight, easy and economical to transprotation and installation
5. Not brittle, and reduce the purchasing quantities for spare parts
