There are two common methods for performing insulation tests on cables, wiring and electrical equipment. One uses a megohmmeter to measure insulation resistance. The other uses a hipot tester to check for insulation breakdown. Both apply a high voltage, either ac or dc, to the device under test (DUT) and measure the resulting current flow. (more...)
![Insulation Testing: Megohmmeter or Hipot Tester](https://www.weschler.com/wp-content/uploads/2021/01/megohmmeter-1.png)