Re: [TCML] Running a TC in snow

[Yurtle Turtle <yurtle_t@xxxxxxxxx>]

I was pointing out that bad things COULD happen, not the other way around. I have lots of photos and souvenirs from our 12.47 kV 10 MVA gear that flashed over at work due to a failed space heater. It was quite exciting!

Adam


--- On Sat, 12/20/08, sparktron01@xxxxxxxxxxx <sparktron01@xxxxxxxxxxx> wrote:

> From: sparktron01@xxxxxxxxxxx <sparktron01@xxxxxxxxxxx>
> Subject: Re: [TCML] Running a TC in snow
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Date: Saturday, December 20, 2008, 11:53 AM
> Mike, Adam and All
> 
> Since we are talking about the possibility of "bad
> things"
> happening with high voltage + rain (or snow), check out
> this video below at SIGNIFICANTLY higher power levels
> then any of us on the list would deal with at home...
> (thou I have professionally).
> 
> http://www.youtube.com/watch?v=ecnA1Ez_M6k
> 
> Snow or moisture of any kind + high voltage either
> leads to flashover as video shows, or "arc
> tracking"
> where a semiconducting path is created on surface
> of insulator toward ground.  At that point it is not a
> question will a flash-over occur, but WHEN.
> 
> Regards
> Dave Sharpe, TCBOR/HEAS
> Chesterfield, VA. USA
> 
>  -------------- Original message ----------------------
> From: Yurtle Turtle <yurtle_t@xxxxxxxxx>
> > One more thing to concider. I'll bet your
> multimeter thinks air is a pretty good 
> > insulator. My Tesla Coil thinks air is a pretty darned
> good conductor. Your 
> > meter probably uses a 9 volt dc battery. A coil uses
> hundreds of thousands of 
> > volts at tens to hundreds of kilohertz.
> > 
> > Adam
> > 
> > --- On Fri, 12/19/08, Mike
> <megavolts61@xxxxxxxxx> wrote:
> > 
> > > From: Mike <megavolts61@xxxxxxxxx>
> > > Subject: Re: [TCML] Running a TC in snow
> > > To: "Tesla Coil Mailing List"
> <tesla@xxxxxxxxxx>
> > > Date: Friday, December 19, 2008, 6:56 PM
> > > Hate to argue with you Dr. R,  but I just stuck
> my
> > > multimeter into a pile of snow(got plenty of the
> white stuff
> > > around), and with the probe less that about half
> inch apart,
> > > I got a infinite resistance reading.  I would
> venture to
> > > guess that as long as it is cold enough that the
> snow
> > > doesn't melt, it would actually not make a
> coil run
> > > significantly different than if in the same
> conditions
> > > without it snowing.   distilled water has a
> fairly high
> > > resistance as well...which snow would be very
> close to upon
> > > melting...I could see it shorting the spark gap
> if it were
> > > not enclosed somehow, but if you set your coil up
> outdoors
> > > under a tarp until it is below freezing....I
> don't think
> > > much would ever happen bad."
> > > Mike
> > > 
> > > 
> > > > yes, bad idea.  Snow and water do not mix
> well with
> > > high
> > > > voltage.
> > > > 
> > > > Dr. Resonance
> > > > 
> > > 
> > > 
> > > 
> > >       
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> > 
> > 
> >       
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