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RE: oil dielectric
Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dave-at-volantis-dot-org>
I use oil in one of my secondaries. There is absolutely no heating. Even
if there were, the plastic pipe the coil is wound on is more likely to burn
than the transformer oil. The oil actually keeps the coil cool by damping
molecular movement. The way I wound the coil was to wind it on a 3.5" OD
PVC pipe and then slide a 4.5" OD PVC pipe over it and seal both ends. I
left a quarter inch hole in the top plug and used something like a turkey
baster to fill the coil with oil. When I was done, I sealed the small hole.
I like this coil so much I'm going to wind another one. This time I'll use
finer wire if I can get some.
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Monday, May 13, 2002 9:44 PM
Subject: Re: oil dielectric
Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
Free, self healing, good dielectric strength.
Oil scares me from being flammable, tho many people
use it. I Have my doubts water can be kept
I suspect liquid nitrogen would be best, and also impractical,but water is
Thanks for tthe advice.
Tesla used boiled out oils which might be less flammable. Air is however of
variable conductivty especially in the presence of ozone. Maybe if it were
somehow possible to exclude air entirely, the oil could not catch fire.