RE: Safety Gap

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

Original poster: "Luke" <Bluu-at-cox-dot-net> 

Yup no caps.
Just an NST and a Spark gap.
The spark gap in this case was nothing more than two pieces of copper
wire cut and pointed toward eachother.  So it wasn’t rounded balls or
anything like that.  Does that make a huge difference?

Luke Galyan
Bluu-at-cox-dot-net

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Friday, February 06, 2004 6:34 PM
To: tesla-at-pupman-dot-com
Subject: Re: Safety Gap

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
 >
 >
 >
 >
 >