Re: [TCML] Wire gauge for large diameter secondary?

[<ConorPerry@xxxxxxxxxxx>]

Do you have a source for this type of wire?  16 gauge seems a bit small 
based on this secondary diameter.  Is this an insulated wire?  What's the 
outer diameter?

The capacitor in this system is 0.1uF at 100kV and has a 14.4kV 15kVa Pig, 
so we're in the same range that you're thinking about.  But a mil-spec wire 
is probably a bit high-brow for this build.  I have available a 16 gauge MTW 
wire with a outside of 0.110".  But 1000 turns of this would end up very 
tall.  800 turns would be 88" tall, which is probably very near the current 
setup.

Conor


----- Original Message ----- 
From: "DC Cox" <resonance@xxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Sunday, October 03, 2010 6:15 PM
Subject: Re: [TCML] Wire gauge for large diameter secondary?


> For this larger size coil use only Mil-D 3.5 kV wire, approx. 16 AWG.,
> closewound,  34"  to 40" toroid.  Asynchro sparkgap, belt driven, 16 
> elec.,
> running 400 pps.  Excellent performance. around 10-15 kVA with 0.12 to 
> 0.18
> uF cap, 80 kV.
>
> Dr. Resonance
>
> On Sun, Oct 3, 2010 at 4:08 PM, <ConorPerry@xxxxxxxxxxx> wrote:
>
> > I'm trying to help someone with a 20" secondary which is starting to fall
> > apart.  It's space wound, probably 20-22 gauge wire, and the windings are
> > seperating from the PVC.  This has caused several locations of arcing
> > between windings and carbon tracking.  All the modern coils that I've 
> > seen
> > (12" and under) are tightly wound using the wire gauge size which will 
> > cause
> > the correct winding lengths.  But when you get into a secondary this 
> > large
> > what to do?  Is THHN, TFFN, or MTW suitable at all?  Is space-wound still
> > and option to help save on copper costs?  If we do space-wound, what 
> > gauge
> > should be used?
> >
> > Conor
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
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