Basic insulation withstand voltage 1250 leakage current 10mA, additional insulation withstand voltage 3750, leakage current 3mA. voltage withstand test is to detect the leakage current flowing through the insulating system of the DUT, with a higher than the operating voltage voltage applied to the insulating system; while the power supply leakage current (contact current) is the DUT under normal operation, with one of the most unfavorable conditions (voltage, frequency) on the DUT measurement. Leakage current is measured under the most unfavorable conditions (voltage, frequency) under normal operation of the DUT. Simply put, the leakage current of voltage withstand test is the leakage current measured under no working power supply, and the leakage current of power supply (contact current) is the leakage current measured under normal operation.
Expanded Information
Voltage withstand test or high voltage test (HIPOT test) is a 100% production line test used to verify the quality and electrical safety characteristics of a product (such as the standards required by international safety organizations such as JSI, CSA, BSI, UL, IEC, TUV, etc.), and it is the most widely known and frequently performed production line safety test. It is also the most widely known and frequently performed production line safety test.
The HIPOT test is a non-destructive test that determines the adequacy of electronic insulation to withstand instantaneous high voltages, and is a high-voltage test that applies to all equipment to ensure that the insulation is adequate. Other reasons for conducting the HIPOT test are that it can detect possible defects such as insufficient leakage distances and electrical clearances caused during the manufacturing process.
China Knowledge - Automated Control of Welding Machine Voltage Testing Equipment
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