Re: failed cap

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Bert Hickman <bert.hickman-at-aquila-dot-net> 

Mike,

Yes - elevating the gas pressure makes it more difficult for any dissolved 
gases to come out of solution. And even if bubbles do form, the higher gas 
pressure makes the gases within the bubbles more difficult to ionize, 
helping to inhibit corona (ala Paschen's Law).

Best regards,

-- Bert --

Tesla list wrote:
>Original poster: "RIAA/MPAA's Worst Nightmare" <mike.marcum-at-zoomtown-dot-com>
>Is that why the oil was pressurized in the 5MV bipolar coil? to keep corona
>from forming?
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Tuesday, December 02, 2003 7:14 PM
>Subject: Re: failed cap
>
>  > Original poster: Bert Hickman <bert.hickman-at-aquila-dot-net>
>  >
>  > Hi Phil,
>  >
>  > You can reduce the electrical stress concentration at the edges of
>aluminum
>  > foil plates by folding the edges of the foil plates - the rounded edges
>  > will help reduce the probability of corona formation at the edges of the
>  > plates. Under high fields, corona will form under oil, since the oil
>begins
>  > to break down liberating gases which then ionize. It doesn't take very
>long
>  > to destroy the nearby dielectric. You can file/sand the edges of thicker
>  > plates (such as aluminum flashing) to accomplish the same thing.
>  >
>  > Best regards,
>  >
<SNIP>