Composite insulator is also called synthetic insulator, non-ceramic insulator, polymer insulator, rubber insulator, etc. The main structure is generally composed of umbrella skirt, FRP core bar and end fittings.The main structure is generally composed of a shed skirt, a FRP core rod and an end fitting. The shed skirt is generally made of organic synthetic materials, such as ethylene propylene rubber, high temperature vulcanized silicone rubber, etc.; FRP mandrels are generally made of glass fiber as a reinforcing material, and a oxidizing resin as a base material; The end fittings are generally carbon steel or carbon structural steel coated with hot zinc-aluminum.

Features of composite insulator

1.Light weight (65-80% less than ceramic insulator)

2.Stable behaviour at extreme climatic conditions

3.Silicon rubber sheds provide perfect hydrophobic performance, good resistance to ageing, tracking and erosion

4.Long term surface hydrophobicity

5.Suitable for polluted environment, salty atmospheres etc.

6.Resistance to breakage and vandalism, practically unbreakable

7.Superior anti-tracking properties

8.High mechanical strength

9.Ease of installation (easier handling with lighter equipment and labour at the job site)

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