Re: HV wire

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

Original poster: dhmccauley-at-spacecatlighting-dot-com 


The 14 AWG wire is okay *only* for the connections between the transformer
output and the capacitor.  The tank circuit wiring should be a thick gauge
wire at least
8 AWG for your set-up for best performance.  Everytime the spark gap fires,
you will be discharging your tank cap into the primary coil which is mucho
peak current.
The 14 AWG for the tank circuit would limit performance somewhat.

Also, you don't really need to use high voltage wiring as long as you keep
some type of spacing on it from hard grounds or other wiring.  I use 4 AWG
600V welding wire for
my portable 3kVA coil with no problems.

Also, current vs. AWG charts are typically for average current ratings and
acceptable heating of the wire in question.  For the tank circuit you are
more concerned about the series inductance and series resistance of the wire
overall during those peak discharges only.

The Captain


Hope this helps.

 > I know it has been a month since this post, but I thought it wouldn't hurt
 > to ask if you had any leftover HV cable.  The power supply for my system
is
 > 4 - 15 kV 30 mA NST's in parallel for 1.8 kVA output to the tank
 > circuit.  Will 14 AWG wire be sufficient for my system (namely the current
 > rating)?  I haven't been able to find a good current vs. AWG chart to
 > answer my question.  Anyway, thanks in advance!
 >
 > Jeremy Gassmann
 > Cincinnati, Oh
 > http://jeremyee.tripod-dot-com
 >
 > At 05:38 AM 7/17/2003 -0600, you wrote:
 > >Original poster: "Clara Marie and Encil by way of Terry Fritz
 > ><teslalist-at-qwest-dot-net>" <encil-at-foxinternet-dot-com>
 > >
 > >
 > >
 > >To the Tesla list:
 > >
 > >Hey, I just found the "new" Tesla list e-mail address.
 > >I have been sending my e-mails out to the old address.
 > >And I thought Chip had me on "filter."
 > >
 > >I have a small supply of high voltage stranded copper wire.
 > >Short pieces, eleven runs approximately twenty-five feet long,
 > >that were left over from a job we just completed.
 > >The wire is new and in good shape, but it is just the
 > >ends that are left after the wire was cut to fit.
 > >Better too make it too long than come up six inches short.
 > >
 > >The wire is labeled:
 > >
 > >TUF-HIDE  '98  "OP"  GTO-15
 > >15000V  14 AWG  105C
 > >(UL)  REV  8/99  E135239
 > >
 > >If any one would like to have a piece, I will be glad to share.
 > >Just let me know how much you need and I will cut you off a
 > >piece.
 > >
 > >We hope your day is Sunny and Warm!!
 > >
 > >Clara Marie and Encil
 >
 >
 >
 >
 >
 >