[Amps] Hi pot test - normal leakage current of vacuum cap

[LB3HC]

Hi experts! I have hipot tested a 1000pF UR4LL vacuum capacitor today.
It did clunk a couple of times at approx 4 kV and then it settled
down. The it clunked a couple times at 8 kV and settled down. Now it
handles 14 KV without any internal arc overs. However... it draws
approx 50 uA leakage current @ 14KV. Is that normal or do I have a bad
vacuum (gassy cap) here?

73
LB3HC