Re: Suitable capacitor dialectrics

["Jason Johnson" <hvjjohnson13-at-hotmail-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, August 15, 2000 1:20 PM
Subject: Re: Suitable capacitor dialectrics


> Original poster: "B Marshall" <bm-at-bens-stuff.fsnet.co.uk>
>
> At 12/08/00 12:00:00, you wrote:
> >Original poster: "Garth van Sittert" <garth-at-mediasupplies.co.za>
> >
> >Hi All
> >
> >I have searched the archives and couldn't seem to locate any posts that
list a
> >set of suitable capacitor dialectrics that can be used in the primary
> >capacitor.  It may be useful if anyone knows of a couple to list it.  So
far I
> >know of polypropylene, polyethylene.  Vinyl (PVC) is a no no.  Learned
from
> >experience.  Got a 42nF 10kV homemade vinyl cap though.
>
> Why is PVC unsuitable? I have just bought 100 PVC CD sleeves for the
> purpose of making one. What
> is the dielectric strength of PVC?
>
> Regards,
> Ben

PVC has a dielecric constant of 2.95 and a dielectric strength of 725
volts/mil

Jason Johnson