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Re: The Dangers
Tesla List wrote:
>
> Original Poster: RWB355-at-aol-dot-com
>
> Hi All,
>
> There has been a lot of discussion about what is dangerous: current, voltage
> or frequency. Everyone seems to have a different opinion about this. I would
> say it is a combination of all three factors plus a completely
uncalculateable
> figure: Your bodyīs ohmical resistance. This depends on so many factors
(from
> what entry to which exit point, shoe material, your constitution: just to
name
> three!!) There is no formula or table out there which will tell you what is
> safe and what not. So assume what you are doing isnīt safe and be CAREFUL.
>
> If I had to, I would put them in the following "danger order"
>
> 1.) The frequency. 50/60Hz is definately nothing to be foolish about.
Anything
> above 35-40 volts CAN kill you under the right circumstances.
>
> 2.) The amperage. Under the right conditions a welding transformer (i.e.: 36
> volts unloaded and 100 amp capable) WILL again kill you.
>
> 3.) The voltage. If the total voltage is high enough (say a big TC.. low
> current, high frequency) will fry you under the right conditions, even
without
> a strike to the primary.
> Bill once said his TC will get a 2x4 to catch fire in under a second.
Imagine
> if your were struck by such an arc..... UUugh !! You may or may not
notice it
> right away (your nerve system canīt react to HF), but your body will take
> damage from a hit.
>
> You CANNOT say HZ, V or A are singely responsable for death, shock, etc (i.e
> the danger)
>
> An igntion coil (GMīs HEi e.g.) puts out 50,000 V -at- .5-1mA. This will be
quite
> painful, but (assuming no health defects like a pacemaker) it wonīt kill you
> A 5kv OBIT on the other hand with 10mA (both being 50W) could kill you under
> the right circumstanes.
>
> I would say take all three factors into consideration and just check, double
> check, AND triple check everything before getting foolish (perhaps for the
> first and last time)
>
> Alfred wrote:
> "John, I would hope that most of us are smart enough to be wearing rubber
> soled sneakers or the like when working with any kind of electronics!"
>
> Hi Alfred:
> Rubber soled sneaker wonīt help you a bit at high voltage. If you were to
> touch a pig (even accidently, a pig doesnīt care abou this !!!) wearing your
> rubber snubbers, the voltage would go thru your arm to your legs and
right out
> of your soles to the next ground. Not sumthin I would want to try.
>
> STAY SAFE Teslaphiles!!!
>
> Coiler greets from germany,
> Reinhard
Reinhard, Terry, Chip, ALL
I remeber reading about 2 years ago of an auto enthusiast being
electrocuted by a GM HEI on a late model Corvette, Vo ~ 100kV.
It in our hands to be vigilant and SAFE...
Regards
DAVE SHARPE, TCBOR