Composite insulators were introduced in the late sixties. The basic idea consists of the combination of different materials that perform different duties in the insulator function according to their specific strength and properties.

The end composite insulator fittings are usually made of metal, such as forged steel or aluminum. For line insulators, a high degree of standardization of end fittings has been achieved, which allows composite solutions to easily replace existing conventional insulators.

Application of Composite/Polymer/Suspension Insulator Deadend Fitting  

1.Ensure that the conductor and insulators are suspended at their correct positions.

2.Ensure that cables remain stable despite the external vagaries of nature such as wind and storm.                                               

3.Complete the connection of different powerline components

4.Can be used to enhance the safety of the powerline.

5.There could be many other roles that are performed by powerline accessories.

Glass fiber reinforced resin rods are responsible for the mechanical loads, either in tension, bending or compression, or a combination of all three, depending on the application and load scenario. The materials of the housing are as diverse as the corresponding manufacturing methods.

Today, these composite insulators made of advanced synthetic materials have demonstrated excellent mechanical and electrical properties and have exceeded all overhead line and switchgear engineering applications in over 50 countries worldwide.