Re: dilectrics

To: tesla-at-pupman-dot-com
Subject: Re: dilectrics
From: Bert Hickman <bert.hickman-at-aquila-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Wed, 22 Sep 1999 11:29:32 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Tesla List wrote:
> 
> Original Poster: Bryan Steinbach <warp27-at-juno-dot-com>
> 
> Does anybody know the dilectric constant of saran wrap?  When in doubt I
> use four, but I would like to get a more accurate number.
> 
> Bryan Steinbach
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Bryan,

Saran Wrap is Polyvinylidene Chloride, and its dielectric constant is
between 4.88 (60 Hz) and 3.18 (1 MHz), so using 4.0 is not a bad
estimate at TC frequencies. At 1 MHz, it's over 700 times as lossy as
LDPE, so it's a rather lossy dielectric if you're thinking about using
it as a capacitor dielectric...

-- Bert --