What do we need to know about the Hi-Pot test

Hi-Pot tests are performed at higher voltages than regular operation. AC or DC voltages can be used for testing, usually between a few hundred volts and several thousand volts. A high voltage is applied when the test is performed and the presence or absence of breakdown (pass/fail) is measured with dedicated test equipment. No other measurement data will be collected. When choosing test equipment, on the one hand, it is necessary to ensure that the probes can withstand high voltages. On the other hand, they should be spring-touched in order to automate testing for high-volume testing on the test pipeline.

We offer specialized probes for high voltage testing. We have rigorously tested it in our in-house laboratory. For a single probe, choose a design with a fully through piston, or a high current probe with low intrinsic resistance. There are also advantages to coaxial designs, such as coaxial dipole probes, which are essentially two probes in one (ie, dual probes), thus saving space. This design is suitable for a wide range of connectors and DUTs.

Hi-Pot testing should always be done separately from pass-through testing and high frequency testing. The use of the same probe for different types of measurements should be avoided as much as possible to ensure the ideal lifetime of the test element. Depending on the probe selected, the connection to the test equipment should be via coaxial connectors and coaxial cables, soldering, screw connections (cable gland sleeves), or plug connections (rarely).