Re: Safety

On Fri, 29 Dec 1995 tesla-at-grendel.objinc-dot-com wrote:

> >From lbliao-at-alumni.caltech.edu Fri Dec 29 01:13 MST 1995
> >Received: from tybalt.caltech.edu (root-at-tybalt.caltech.edu []) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id VAA00453 for <tesla-at-grendel.objinc-dot-com>; Thu, 28 Dec 1995 21:07:07 -0700
> From: lbliao-at-alumni.caltech.edu (lbliao)
> Subject: Re: Safety
> To: tesla-at-grendel.objinc-dot-com
> Date: Thu, 28 Dec 1995 20:06:29 -0800 (PST)
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> > I realise that the primary circuit on any coil is the most dangerous 
> > part.  
> Why is primary the most dangerous part, when it is only low voltage
> and well isolated from secondary?

The primary circuit IS NOT insulated from the secondary.  The whole 
system is designed around copper tubing, which has NO insulation.  The 
reason is to allow changing the tapping of the system, to tune the coil.  
Getting too close to this circuit will cause a white hot arc (like in the 
spark gap) to hit your body, causing a BIG SHOCK.  I hit the primary 
circuit of a small (2000v) coils, and I though I would die.  Never again!
What about the secondary?  I understand that the output of a 
well > > tuned coil is less dangerous than that of a poorly tuned coil. 
> WHy is that so?
The high frequency electricity should show the skin effect, passing over 
the surface.  This is like being in a car when it's struck by lightning.
> > How do 
> > you know if its well tuned, is that the same as observing for corona 
> > increase?  Has anyone ever tried to connect themselves to the coil, to do 
> > what Tesla did (sparks out the fingertips and hair).  I saw this 
> > performed on T.V., but don't dare to do it on my own!
> THis in my understanding depends upon the frequency and current, and not
> voltage. The high frequency currents will go through skin and not heart
> or nerve or muscle and with low amperage will not burn the skin.