High Potential test, also called a Dielectric Withstand Test, is referred to as a Hipot test. In essence, it is a test where high voltage is applied to assets to assess whether the electrical insulation is adequate to survive voltage transients and ensure that the insulation is not subpar.
During hipot testing, a high voltage, typically between 1.5 and 3 times the rated voltage, is applied to the device or system under test for a specified amount of time. The voltage is applied between the device's conductive parts and its insulation. The test is used to verify that the insulation is capable of withstanding the voltage and that there are no faults or defects in the insulation.
It is important to note that hipot testing can be dangerous, and proper safety precautions must be taken. The test should only be performed by trained personnel using properly calibrated equipment.
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