The 66kV composite suspension insulator consists of glass fiber epoxy core, silicone rubber shed and metal fittings. Low-voltage insulators have good dielectric properties, sufficient mechanical strength and anti-aging ability under rated voltage..

During the icing process, charged water droplets enter the radius area of the synthetic insulator shed with the airflow and are subjected to rapidly increasing electric field forces, resulting in droplet orbit transfer. As a result, the unevenness of water droplet capture at different locations on the insulator surface and the unevenness of the ice layer increase.

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