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Hipot (or high potential testing) is a non-destructive test that has many names: overvoltage testing, dielectric breakdown test, dielectric withstand test, or insulation resistance tests. All of these tests are designed to make sure that the insulation used in your electric motors are doing their jobs.

Time Duration for HIPOT Test: The test time for most standards, including products covered under IEC 60950, is 1 minute. A typical rule of thumb is 110 to 120% of 2U + 1000 V for 1–2 seconds.

A general rule of thumb for establishing the hipot test voltage is two times the working voltage + 1000 V. For a working voltage of 220 V, the rule of thumb test voltage is (2 × 220 + 1000) = 1440 V. Therefore, 1500 V is a common hipot test voltage.

Hipot (or high potential testing) is a non-destructive test that has many names: overvoltage testing, dielectric breakdown test, dielectric withstand test, or insulation resistance tests. All of these tests are designed to make sure that the insulation used in your electric motors are doing their jobs.

The high potential (hipot) test is a test of the dielectric strength of the insulation to ground. The hipot test is used to determine whether the ground wall can handle an over-voltage situation. An over-voltage is a voltage higher than the peak operating (line-to-line) voltage of the device under test (DUT).

Motor testing is regulated by the Institute of Electrical and Electronics Engineers (IEEE) through standards such as IEEE 43 – Insulation Resistance and Polarization Index, IEEE 56 – Maintenance AC Hipot Test, IEEE 95 – DC Hipot Test, and IEEE 400-2001 – The Guide for Field Testing and Evaluation of the Insulation of ...

The IEC 61347-1 hipot test definition is based upon a few driver characteristics, including whether the driver is SELV or Non-SELV and whether the driver is Class I or Class II. Each test will be performed between the input and output, between the input and case, and between the output and case if applicable.