We ran ours around 900V-2200V, but, yes, you want to
test around
operational voltage to look for leaks. We found them - not usually by
brushing up against the cables, fortunately, but because bad cables
tripped the source crowbars (they would only permit a few mA before
shutting down a channel to prevent damage). I believe our issues were
A good current limiting cirucit (or trip) is _essential_ on V power
supplied. I indirectly owe my existnace to one, my father managed ot
touch the output of an 10kV (or so) PSU he was using in his resarch with
one hand while his other hand was resting on an earthed metal sink.
Fortuately the supply was a Fluke, so the trip actually worekd properly.
This was before I was born, so if it hadn't tripped, I would not be here...
But I do chekc the isulatuion fo mains
transfiormers, fans, etc with one. It's better to find the leak.breakdown
that way than by having the mains ps thotuh you (or worse, the logic boards!)
I've not had issues in that area, but it's always good to know the
right tool for the job.
I always test verything before I conenct it to the mains. it only takes a
few minutes ,and I reckon my life is worth that (yes, OK< the safety
earth should protect me, but I prefer that it doens't have to!).
When I say 'everyything' I mean old and new. And I will tell you I've
found many mroe dubious new things than classic computers...
-tony