Megohmmeters and some hipot testers are also known as what?

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Megohmmeters and some hipot testers are commonly referred to as insulation testers because their primary function is to measure the insulation resistance of materials. Insulation testers apply a high voltage to the insulation and measure the resulting current flow, which allows them to assess the quality of the insulation. A key aspect of their operation is to ensure that electrical systems and devices are properly insulated to prevent current leakage, which can lead to faults or hazards.

The term "insulation tester" effectively reflects the purpose of these instruments, as they are specifically designed for testing and verifying the integrity of insulation in electrical equipment. This is critical for maintaining safety standards and ensuring reliable operation in various applications. While other devices might test different properties, the defining characteristic of insulation testers is their focus on measuring insulation resistance.

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