Re: VOLTS PER MM

To: tesla-at-pupman-dot-com
Subject: Re: VOLTS PER MM
From: "Sam Barros" <sambarros-at-hotmail-dot-com> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
Date: Fri, 18 Sep 1998 16:14:59 -0600
Approved: terryf-at-verinet-dot-com

>Original Poster: Cabbott Sanders <cabbott-at-cyberis-dot-net> 
>
>Hi, I need to make a safety gap for my cap..... If i want to set it to 
40 kv,
>how far apart is that????  does anyone have a volts per distance table 
of
>air at
>sea level?? a formula perhaps?

 There you go! I don't think a formula would work well becuse the 
sparklenght depends on several factors, such as the material of the 
conductor, the shape, the surface type and area, whether it's clean or 
not, etc... These seem to work accurately for me... Just make sure you 
have no sharp points that could dray energy out of your gap trough 
spraying...


1 cm radius = 2cm diameter 
max. dist. / mm tension / volts 
0.5 2900 
1 4700 
3 11400 
6 20400 
10 30800 
15 39300 
20 47000 
30 57000 
40 64000 
50 69000 

25cm radius = 50cm diameter 
max. dist. / mm tension / kV 
51 100 
106 200 
171 300 
257 400 


 P.S. I got this from 

http://www.mathematik.uni-marburg.de/~kronjaeg/hv/hv/tbl/measure.html

 It's the only table of this kind I know off...

 Sam Barros.

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