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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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