Re: Solid versus stranded Wire

• To: tesla-at-pupman-dot-com
• Subject: Re: Solid versus stranded Wire
• From: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Wed, 17 May 2000 18:07:45 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

On 17 May 00, at 4:54, Tesla List wrote:

> Original Poster: "G. G. Ford" <swimp-at-home-dot-com> 
> 
> About at TC Freqs, Solid better than Stranded wire...
> 
> Is that because of the higher intrinsic inductance
> of smaller diameter wire, causing increased voltage
> drop?!

No - inductance is lossless. We are talking about losses and 
therefore resistance. All else being equal, stranded wire is 
measureably lossier than solid section, presumably due to skin 
effect artifacts. I have measured this in quite short lengths of wire.
Area for area, litz is better than both as it has a greater effective 
cross sectional area due to the insulation between strands. I am not 
saying that a resonator built with stranded wire will produce inferior 
results however - primary losses and output spark losses are 
dominant.

Regards,
Malcolm
 
> Swimp-at-home-dot-com
>  http://members.home-dot-net/swimp/ - click Plasma
> for photos of a a hypersonic plasma jet...
> 
> Tesla List wrote:
> 
> > > Original Poster: MrDirect-at-aol-dot-com  > ...would there be more or less
voltage
> > drop
> > > using stranded wire or solid wire?
> >
> > If the copper is the same grade and the cross-sectional area of the
> > copper is the same there shouldn't be any difference. Things
> > change noticeably at TC type frequencies though. Solid is a better
> > performer.
> >
> > Regards,
> > Malcolm
> >
> > > Regards
> > >
> > > Dave
> > >
> > >
> 
> 

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