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What are the main causes of aging of composite insulators?

As composite insulators are new insulator products relative to porcelain or glass insulators, the main causes of aging of composite insulators has been taking seriously as a hot topic. Do you know what the main causes of aging of composite insulators are?

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composite insulators suspension type

What are the main causes of aging of composite insulators?
1. Wind drives dust and other pollutants
2. Diffusion
3. High humidity, fog, dew, or light rain
4. Contamination between the droplets
5. The uneven distribution
6. Sun rising
7. Hydrophobicity
8. Arcing and discharges
9. Erosion on the surface
10. The voltage stress distribution

Most technical work concentrates on the aging of composite insulators and the development of test methods that simulate the aging process. Transmission lines operate in a polluted atmosphere.

These are the major causes of aging in composite insulators which also lead to the uncertainty of a composite insulator’s life span. If the deterioration process is slow, the composite insulators can perform well for a long period of time.



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