The operation of overhead power lines exposes insulators to harsh environmental conditions. Dust, pollution, and moisture can accumulate on the surface of glass insulators, leading to surface conductivity and compromised performance. As a result, high-voltage insulator cleaning becomes crucial to maintain the electrical and mechanical integrity of the system. Regular cleaning of insulators helps prevent surface leakage currents, flashovers, and potential disruptions to the power supply. Furthermore, cleaning also ensures the longevity of insulators, reducing maintenance costs and optimizing their overall efficiency.

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Insulator flashover refers to the unintended discharge of electricity along the surface of the insulator due to excessive voltage or contamination. This phenomenon can have severe consequences, including power outages, damage to equipment, and even endangering the safety of personnel. Flashovers can occur when insulators are exposed to adverse weather conditions, such as heavy rain, fog, or snow, which contribute to the accumulation of contaminants on their surface. The resulting leakage currents can create a conductive path, leading to a flashover. To prevent such incidents, it is crucial to employ measures such as insulator cleaning and the application of appropriate coatings.