[TCML] Insulating a MOT

[<mrapol@xxxxxxxxxxxx>]

I have a single MOT in use as a (moderately) high voltage source. It's 
working fine, but at high voltages I get arcing between the primary and the 
grounded core. It doesn't seem to be damaging anything, but I'd like to stop 
it. Layers of black electrical tape had no effect, and I don't want to dunk 
the whole thing in oil.

I was thinking if some kind of applied insulation, like liquid tool-dip 
rubber or the asphalt-rubber spray on undercoating sold for cars and as a 
stop-leak. Would these be a waste of time, you think, or even a fire hazard? 
Any ideas how to insulate a standing MOT without using oil?

Paul 

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