By hvhipot 
HV Hipot Electric Co., Ltd. specializes in producing series resonance (also known as series resonance withstand voltage tester). Next, we will share with you what is withstand voltage testing.
Many people are familiar with continuity testing. Continuity testing checks whether the connection is good, which means that current will flow from one point to its target point. If the current flows easily enough, it indicates that these points are connected. Many people are not familiar with withstand voltage testing. Voltage withstand test “is an abbreviation for high voltage testing. Potential (high voltage).
Voltage withstand test check shows good isolation. The withstand voltage test checks that there is no current flowing between points without current. In some aspects, withstand voltage testing is the opposite of continuity testing.
Continuity testing: “Ensure that current easily flows from one point to another
Voltage withstand test: “Ensure that current does not flow between points where it should not (use high voltage to ensure that current does not flow).
The withstand voltage test uses two isolated conductors and applies a very high voltage between the two conductors. Observe the flowing current. If the current is too high, these points will not be well isolated, making the test unable to pass.