RE: [TCML] TC Newbie

["Dave Halliday" <dh@xxxxxxxxxxxxxx>]

Probably meant PET or Polyethylene terephthalate - soda pop bottles.

http://en.wikipedia.org/wiki/Polyethylene_terephthalate 

Has a dielectric constant of 3.0 - not good...

http://www.azom.com/details.asp?ArticleID=2047

Dave

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx 
> [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of David Rieben
> Sent: Sunday, December 07, 2008 5:41 AM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] TC Newbie
> 
> Hi Gary, all,
> 
> I'm afraid that I don't recognize the acronym "PETA"
> in reference to plactic. The only thing that I can think
> of for this one is "(p)eople for the (e)thical (t)reatment
> of (a)nimals" ;^) I know "PE" is polyethylene and HDPE
> is high density polyethylene but I just can't figure out
> what the "TA" means. Someone please enlighten me :^?
> 
> David
> 
> 
> ----- Original Message ----- 
> From: "Lau, Gary" <Gary.Lau@xxxxxx>
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Sent: Saturday, December 06, 2008 11:25 AM
> Subject: RE: [TCML] TC Newbie
> 
> 
> PETA is a very lossy dielectric.  But even beyond that, I 
> think that plastic 
> bottles are not a good choice for bottle caps.  Any time 
> there is corona, 
> visible or not, that will rapidly degrade and melt a plastic 
> dielectric and 
> result in a puncture, and that is true regardless of whether 
> or not the 
> plastic is a lossy dielectric.  Glass is much more resistant 
> to corona than 
> plastic, so glass bottle caps can survive even with corona.  
> Corona is the 
> reason that commercial plastic dielectric HV caps are 
> constructed as many 
> lower voltage units in series - so that the voltage across 
> each section will 
> be below the "corona inception voltage".
> 
> Regards, Gary Lau
> MA, USA
> 
> > -----Original Message-----
> > From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> > Behalf Of Jim Mora
> > Sent: Saturday, December 06, 2008 1:25 AM
> > To: 'Tesla Coil Mailing List'
> > Subject: RE: [TCML] TC Newbie
> >
> > Hello,
> >
> > I wonder if 1 or 2 liter PETE coke (or whatever) clear 
> plastic bottles 
> > could
> > be used. PETE has a very high dielectric strength and 
> puncture resistance
> > and is thin enough to really raise the capacitance and 
> lower the weight a
> > bit. Maybe PE bottles which are thicker though.
> >
> > Jim Mora
> 
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