Re: [CAD_CAM_EDM_DRO] Re: Shock Warning

I have them Electric Fence chargers and some of them put out over 10,000
volts, I have bounced off the wires a bunch of times. I use that to keep
cattle out of my yard and contained in some pastures.
These are almost zilch in amperage, now, if you have low voltage with high
amperage, that can fry you.
Clint

----- Original Message -----
From: "mariss92705" <mariss92705@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, August 18, 2002 6:10 AM
Subject: [CAD_CAM_EDM_DRO] Re: Shock Warning


> Take an ohmmeter. Squeeze The terminals as hard as you can. Lick your
> fingers to make the reading as low as possible. I don't think you
> will get under 2,000 Ohms.
>
> It takes about 100mA to get you to be in trouble, i.e. you can't let
> go of the leads. Do Ohms Law to figure the voltage needed to get
> 100mA to go thru you when you have 2K of resistance. That works out
> to be 200 volts.
>
> 9VDC does indeed tickle when you touch your tongue to it but it is
> not hazardous, let alone lethal. It takes 100mA at least to get
> yourself in trouble, and then it must pass thru your heart. To do
> that it must go up one arm, thru your chest and down the other arm.
>
> All good techincians and engineers know when you are dealing with
> potentially leathal voltages to keep one arm behind your back. The
> other one you can stick into dangerous parts. If you are wrong, your
> fingers will get burned but current won't pass thru your chest and
> arrest your heart.
>
> 80VDC is enough to make you sit and take notice if you touch it the
> wrong way. It will not harm you however. 24VDC you can't even feel
> even if you are standing in a bucket of salt water.
>
> You really don't have to freak out about harming yourself at these
> voltages. Been there, done that, still alive and none the worse for
> the wear.
>
> Mariss
>
>
>
> --- In CAD_CAM_EDM_DRO@y..., "stevenson_engineers" <machines@n...>
> wrote:
> > >--- In CAD_CAM_EDM_DRO@y..., Keith Green <ksgg@s...> wrote:
> > > Volts don't kill; amps do. Usually the worst is less than 1A
> > > (near to
> > > your body's current) where it interrupts your heart. Volts would
> > >just be the
> > > "penetrating power" of the charge. If you've got bleeding hands
> and
> > >are
> > > standing barefoot in a puddle of salt water, it wouldn't take
> > >much...
> >
> > So if I touch the leads on my big welder that's rated at 35 volt
> 300
> > amp I'm dead?
> > Funny that stick welders are sold over the counter with NO warning
> on
> > them about the danger of getting killed by the output leads.
> >
> > John S.
> > >
> > >
> > > keith
> > > ----- Original Message -----
> > > From: "mayfieldtm" <mayfiet@i...>
> > > To: <CAD_CAM_EDM_DRO@y...>
> > > Sent: Saturday, August 17, 2002 1:58 PM
> > > Subject: [CAD_CAM_EDM_DRO] Shock Warning
> > >
> > >
> > > > --- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...>
> > wrote:
> > > > >
> > > > > You have to work very hard to get shocked by voltages less
> than
> > > > > 80VDC. It may tickle a little bit but that's about it.
> > > > >
> > > >
> > > > True, but don't forget that human skin is an insulator.
> > > >
> > > > If you-all are like me, whenever I work around machines, tools
> and
> > > > sharp things like chips and tool bits, my hands often have
> > numerous
> > > > cuts.
> > > >
> > > > Be very careful when poking around with electrics with a cut
> > finger.
> > > > Even 12 volts can be lethel under just the wrong conditions.
> > > > Or so I've heard, (could be just a tall tail)
> > > > If nothing else, it might make you do the Jig.
> > > >
> > > > Tom M. :~(
> > > >
> > > >
> > > >
> > > >
> > > > Addresses:
> > > > FAQ: http://www.ktmarketing.com/faq.html
> > > > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > > >
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> > > you have trouble.
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> > > >
> > > > http://groups.yahoo.com/group/jobshophomeshop I consider this
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>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>
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>
>
>
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