Re: Safety Gap

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Bart Anderson <classi6-at-classictesla-dot-com> 

Hi Luke,

What are using as electrodes and what are the dimensions of the electrodes?
BTW, is this test with only the NST and the sparkgap? (no cap in there?).

Let me know.
Thanks,
Bart

Tesla list wrote:

>Original poster: "Luke" <Bluu-at-cox-dot-net>
>I was working out how I wanted to make my safety gap and happened across 
>something that has me confused.
>Using the JavaTC program with a static spark gap and a 15KV NST, if I set 
>the total gap spacing to anything over 0.3” I am informed that the voltage 
>needed to jump the gap is greater than the peak voltage of the NST.
>
>I was assuming that the safety gap would be set at close to this distance 
>as well. I started playing with a 15KV 30mA NST. I can set a gap of almost 
>¾” and still get an arc when I energize the NST. This seems to be close to 
>the cut off point since it sometimes will and sometimes will not jump the 
>¾” gap.
>
>Yes I know the peak voltage is around 21 or 22KV. And just to avoid the 
>questions no I am not using a variac. I just have a cord with a cord cap 
>on it and I plug it in, then poof an arc jumps the ¾”.
>
>Is JavaTC telling me something other than what I think it is? Is there 
>something I am missing? Any comments.
>
>Luke Galyan
>Bluu-at-cox-dot-net
>
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