General > General Technical Chat
Is this kind of voltage supposed to be there?
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capt bullshot:
I want to move my lab supply: Turn it off, pull the mains plug, accidentally touch the pins of the mains plug, get shocked.
Repeat with voltmeter measuring the DC voltage between the pins instead of touching them, voltage decays while measuring.

This is what I understood, and would be the residual charge effect.
objekt406:
Yea this is maybe how i should have described it :D I was just thinking that it wouldnt be possible to get shocked because there is some kind of bleeding resistor to get rid of the high voltage
capt bullshot:
Yes, modern mains powered devices must have this bleeding resistor (required by safety standards). But there's equipment out there that doesn't.
objekt406:
Hmm, then i just have to accept that my psu for some reason doesnt have this kind of protection i guess. Its not a big problem honestly, its not like im touching it every day in the morning to wake up or stuff like that :P Appreciate your answers, was thinking in the same direction of some kind of cap that held some charge, but just wasnt sure if it could be true
shakalnokturn:
It's good when bleeder resistors are there (although adding a little power wastage) always assume they've failed open though...
I'd be curious to know how many deaths have been caused by assuming bleeder resistors were fail-proof in microwave oven capacitors.
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