Cable meggering is the process of testing the insulation resistance of electrical cables using a megger (insulation resistance tester) to ensure safety and reliability. This test helps detect faults, insulation breakdown, moisture ingress, or aging in cables that could lead to short circuits, power loss, or fire hazards. During meggering, a high DC voltage is applied to measure the resistance between conductors and between conductors and earth. A high resistance reading indicates good insulation, while a low reading signals potential issues. Regular cable meggering is essential in preventive maintenance, ensuring electrical systems operate efficiently and remain safe in all environments.
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