Common faults of composite insulators.

Common faults of composite insulators include but are not limited to the following:

– Flashover: The surface of the insulator discharges under high voltage, resulting in reduced insulation performance.

– Breakdown: Electrical breakdown occurs inside the insulator and the insulation ability is lost.

– Mechanical damage: If the insulator is damaged by mechanical forces such as impact or tension during transportation, installation or use.

– Aging: After long-term exposure to the environment, insulators may age, leading to a decline in insulation performance.

– Crack: Cracks appear on the surface or inside the insulator, affecting its insulation performance.

– Contamination: The surface of the insulator is contaminated, such as dust, dirt, salt, etc., which may reduce the insulation performance.

– Connection failure: the connection between the insulator and the pole, wire, etc. fails, affecting the normal use of the insulator.

– Manufacturing defects: there may be defects in the manufacturing process, such as bubbles inside the insulator, impurities, etc.

These faults may cause the insulation performance of insulators to decline, thus affecting the safe operation of the power system. In order to ensure the normal operation of composite insulators, it is necessary to carry out regular testing and maintenance to discover and handle faults in time. At the same time, when purchasing and using composite insulators, products of reliable quality should be selected, and installed and used in strict accordance with relevant standards and specifications.

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