Composite insulators can take wind and rain and have good self-cleaning performance under wind and rain, so need checking for pollution only once every 4–5 years, and requiring less time for the repair and power interruption. Since the core rod has higher extension strength, composite insulators can result in very light overall weight. Their weight is only 10–20% of the weight of porcelain insulator strings of the same voltage class. Their length can be shortened by more or less 10% in the same voltage class, which can greatly reduce the labor of workers in transportation and field operation.
1.The insulators are made of glassfiber epoxy core rod,silicone rubber shed and metal fitting.
2.The silicone rubber shed adopt the whole packing pressure technique.
3.Small volume,light weight,corrosion prevention and reliable structure.
4.Sheath thickness is more than 5mm and in accordance with IEC international standard.