What is HiPot Test?

HiPot test, also called insulation withstand voltage test, is a non-destructive reliability test that can measure the "breakdown voltage" and "insulation resistance" of PCB products. High voltage will be applied to PCB products within a certain period of time, usually 1.5KV~3.0KV (daily power consumption is 110V or 220V several times the voltage, the conditions and standards vary depending on the product) to test the electrical safety of PCB products whether the characteristics and insulation performance are qualified, under high voltage, some materials with poor insulation will be broken down and a short circuit will appear.

     The HiPot test is carried out by allowing the input power terminal of the PCB product to withstand a high voltage for a limited period of time, and measuring its collapse state. This test stipulates that the PCB "Does not allow arc breakdown or collapse during the period when a high voltage is applied.

     The HiPot test can also detect potential defects in PCB products, such as:
1) The insulating effect of the insulating material is not good
2) There are pinholes on the insulator
3) Insufficient electrical clearance between components
4) The insulator is squeezed and broken