I work in a test lab and have a simple question that is burning some people up and just want to make sure that my understanding is correct (or NOT!)
We must leak test between open contacts, lets say A and B at +18kVDC then reverse leads and test again (B to A). later we must test -18kVDC between same open contacts A to B then B to A.
I am being told that by switching the leads (pos lead to A ; return lead to B then return lead to A ; pos to B) we are satisfying the + and - 18kVDC requirement.
I do not believe this to be true. We are simply changing the electron flow through A and B. This does not magically change the source current to a symmetric but opposite signal.
It would be super cool to get some insight on this whether Im correct or not.
BTW I could proooolly get fired for posting this question online =D
Cheers ahead of time!