HiPot testing my filament xformer
On Nov 14, 1:05*pm, Grumpy The Mule wrote:
Getting side tracked by the mention of agency requirements,
I didn't answer your question.
To answer your question, there is no agency requirement for
what you're trying to test. *Both input and output are not
covered by the low voltage directive because they're both
unsafe to touch. *So the only requirement is operational
insulation which your test proved.
I also failed to mention that Most standards allow for DC
testing at 1.414 times the AC voltage required.
Thank you OM my transformer will not pass the 1500VAC test but it does
ok at 1350VAC, leakage down to 0,2 nano amps after I got rid of the
stray leakage caused by my test set up, always best to zero out the
hipot tester first. Thus eliminating the stray leakage. Must have
nicked the kapton insulation for it to breakdown at 1500VAC Now I'll
have to pot the transformer in epoxy.
73 OM
n8zu
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