Insulator manufacturers talk about the six main culprits causing insulator failures:
1. Lightning strike or failure caused by external force
According to calculations, among the insulating faults of transmission lines, faults caused by lightning strikes account for 50% to 55% of the total number.
2. Problems caused by pollution
In the natural environment, affected by sulfur dioxide, nitrogen oxides and particulate dust, a layer of dirt accumulates on the surface of insulators.
3. Problems caused by bird damage
Ming type excrement affects the absolute effect.
4. Problems caused by aging
5. Problems caused by low resistance
The insulating strength of one or several pieces in the insulator string is reduced.
6. Trouble caused by overvoltage
