Medium-voltage (MV) cables typically must be tested under tight constraints of time, budget, and other resources. These constraints and other factors mean you must choose which tests to perform.
The high-potential (“hi-pot”) test is typically included in an MV cable-testing program. But should you choose the DC or AC version? Let’s look at the DC version, first.
As the name implies, the DC hi-pot uses a DC source. This test would seem to