Measuring insulation resistance is an effective way to assess the condition of electrical insulation. It helps identify potential issues such as local breakdowns, aging, or moisture ingress. A sudden drop in the measured insulation resistance typically indicates that the insulation is damp, severely aged, or has partial penetration, all of which can compromise the safety and performance of the equipment. This test provides a preliminary evaluation of the insulation's health, allowing engineers to make informed decisions about maintenance or further testing. By regularly monitoring insulation resistance, potential failures can be detected early, preventing costly damage and ensuring safe operation. Understanding the insulation condition through this method is essential for maintaining the reliability of electrical systems.
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