[Amps] Air gap for 12000 volts?

Bert Barry kimba@sprint.ca
Tue, 23 Apr 2002 09:50:29 -0400 

> > >From pratical experience I find that 1 cm is not very much when you are
> > talking about 20 kV.  For 20 KV I would have a lot more
> > clearance than 1 cm
> 
> My research reveals that the breakdown of air is 20,000 volts/inch NOT cm.

What's an 'inch' ??

Bert, VE3QAA