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Re: TC Question and Discharge Safety
Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net>
Not necessarily. Folks who do the lightning from the fingertips kind of
stunt often wear a metallic harness under their clothes to safely conduct
the power. (Makes one wonder if this is why the dancer Cynder Moon is no
longer doing the standing on a TC thing... not much concealment possibility
there)
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, January 01, 2004 6:31 AM
Subject: Re: TC Question and Discharge Safety
> Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au>
>
> so i take it the guy sitting on top of the tesla coil in the hvfx
> video,
> http://www.hvfx.co.uk/video/lightningman.mpg
> is slowly toasting himself to an early grave?.
>
> regards
> richard
> aus.
>
>
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Thursday, January 01, 2004 10:15 AM
> Subject: Re: TC Question and Discharge Safety
>
>
> > Original poster: dhmccauley-at-spacecatlighting-dot-com
> >
> >
> > There is no such tesla coil capable of what you ask. There are always
> > dangers involved. Sure, you could take a metal rod and pull the arc of
> > most small tesla coils (up to about 4kV/30mA) as well as VTTCs and
STTCs
> and
> > not really feel anything at all, but the RF currents are still
> > flowing through your tissue and causing damage. Due to the high
frequency
> > nature of the electricity, your nerves do not feel the current, but be
> > aware,
> > that damage is likely being done.
> >
> > Also, many will state that skin effect will protect you from the
dangers
> of
> > high frequency tesla coil discharges, but that is a myth. Skin effect
> > really
> > has no effect on the human body. Most of the RF current is flowing
> through
> > your body and not on the skin.
> >
> > So when you ask if its safe to come into contact with the discharge of
a
> TC,
> > the answer is, no. Sure, you may not feel any immediate pain
> > when doing something like this, but doing this repeatedly may cause
long
> > term damage which may not show up for years to come. Its always
> > best to watch from distance and not become part of the demo.
> >
> > Dan
> >
> > > It appears I mis-stated my question. I am aware of the safety issues
> with
> > > the output of the NST or any AC source. What I was wanting to know
is
> > > whether or not there is any size TC that it is safe to come in
contact
> > with
> > > the output streamer, baring a strike to the primary while touching a
> > > streamer. If so, what are the specs for such a coil?
> >
> >
> > > > > Can someone tell me the power range (ie. volt/amp rating) that
is
> > > > > safe. I am assuming that there is a point at which they become
> > > >potentially
> > > > > lethal and below that point they are safe. I have a 7.5 KV NST I
> would
> > > >like
> > > > > to do something with but I don't know if I can use it for the
this
> > type
> > > >of
> > > > > coil. Thanks in advance for your assistance.
> > > > >
> > > > > Emmett
> > > >
> > > >You are incorrect in your assumption.
> > > >Any voltage above 30V or so is considered hazardous at least by
> various
> > > >safety standards etc...although this
> > > >is debated among different schools of thought.
> > > >Although voltage doesn't kill, it is current that does the job.
> However,
> > > >given some value of resistance in the human body, the higher the
> > > >voltage, the higher the current.
> > > >
> > > >There are no safe NSTs. Any sized NST has the capacity to injure
or
> even
> > > >kill someone especially when connected to
> > > >a circuit that contains capacitors such as a Tesla Coil. For
example,
> if
> > > >you turn off your NST power at the peak point and have
> > > >a primary tank capacitor with no or little bleeders, the primary
tank
> > > >capacitors could be fully charged to the peak output voltage
> > > >of the NST.
> > > >
> > > >Also, there are many things that will affect how dangerous a NST
can
> be.
> > > >For example, the impedance (resistance) of the human body
> > > >for one. The resistive path of the human body is greatly affected
by
> > many
> > > >things including moisture, point of contact, and physical skin
> thickness
> > > >(such as
> > > >broken skin or sores, callouses, etc...) While you may survive to
> coil
> > > >another day with a shock from a 15kV/60mA in dry, normal
conditions,
> your
> > > >life
> > > >may be abrubtly by a small 4kV/20mA NST if you happened to touch
the
> high
> > > >voltage through a sore or wet hand or something.
> > > >
> > > >The important thing here, is that no high voltage is safe and that
> > includes
> > > >any type of NST whether its a small 4kV/10mA unit or a large
15kV/60mA
> > > >unit.
> > > >All should be treated with the utmost respect and no one should
become
> > > >complacent around them.
> > > >
> > > >The following document on my website describes electrical safety
and
> its
> > > >effects on the human body.
> > > >http://www.easternvoltageresearch-dot-com/datasheets/safety.pdf
> > > >
> > > >Dan
> > > >
> > > > > I am wanting to build a small coil that would be safe to run
> connected
> > > >to
> > > > > the supply ground and also safe if someone should come in
contact
> with
> > a
> > > > > streamer. Can someone tell me the power range (ie. volt/amp
rating)
> > that
> > > >is
> > > > > safe. I am assuming that there is a point at which they become
> > > >potentially
> > > > > lethal and below that point they are safe. I have a 7.5 KV NST I
> would
> > > >like
> > > > > to do something with but I don't know if I can use it for the
this
> > type
> > > >of
> > > > > coil. Thanks in advance for your assistance.
> > > > >
> > > > > Emmett
> > > > >
> > > > >
> > > >
> >
> >
> >
>
>