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Re: [TCML] Noxiuos fumes from high powered arc/JL

I've always said one has to be very careful using Tesla coils in apartment
rooms, basements, closed garages, and other closed up or partially enclosed

I first experienced very similar experiences in 1962 - 1965 running coils in
my basement without good ventilation.  O3 is also considered carcinogenic,
so long term
effects have not been carefully studied.

Solid state and IGBT type coils are much more efficient and dump much higher
currents into the secondary inductor thus increasing the O3 effects.

Use caution and stay healthy.  If you have to run in an enclosed area,
consider short operational periods of 10-15 sec, then use a fan to blast any
O3 out a nearby window.

Dr. Resonance

On Tue, Oct 28, 2008 at 2:50 PM, David Rieben <drieben@xxxxxxxxxxx> wrote:

> Hi all,
> I'm sure others have ran into this issue but I thought that
> I would bring it up to alert relative newcomers and to re-
> fresh the memories of us "old salts". As most of us are
> already aware, the production of ozone (O3), along with
> various nitrogen oxides, can become rather copius during
> operation of Tesla coils, especially the smaller to medi-
> um sized SGTCs or DRSSTCs. Without proper ventil-
> lation, these gases can quickly reach toxic levels. From
> my personal experience, the distinctive O3 odor seems to
> actually become less noticable with higher powered SG
> driven coils where the ground striking arcs become more
> and more numerous and start to take on more power arc
> characteristics than the typical purplish blue corona and
> streamers. However, I never really gave much thought
> to excessive toxic gas production in an improperly ventillated
> area while just running or making large 60 hz. power arcs, like
> in a large Jacob's ladder. Sure enough though, today while I
> was playing around with my beloved 150 kvp, 600 mA x-ray
> transformer, making some impressive power arcs, I began
> to notice asthma-like symptoms with my breathing (and
> I don't have asthma) and began to cough rather uncontrol-
> ably. Funny thing was that I really couldn't smell any
> O3 but I still got that feeling of inhaling too much O3.
> Once I moved outdoors to fresh air, the symptoms went
> away pretty promptly. I'm assuming that any electric
> arc is going to produce some NOs, even though they may
> not always have a detectable odor. It seems that it takes
> longer to get over these symptoms after moving to fresh
> air when the distinctive sharp odor of O3 is noted than it
> did with today's "odorless" experience, though. Anyone
> else have any more light to shead on this thread?
> David Rieben
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