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Re: drsstc
Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
A value of 10 Joules or more across the chest may be lethal. Most stun guns
are 1-3 Joules and the police models are 5 Joules.
In AC circuits a value of 25 mA is considered the legal threshold for
lethal.
Dr. Resonance
>
> Hi Bob,
>
> The defibs that I've seen in my profession (firefighter)
> generally have two energy level shock settings - 200 joules
> and 360 joules, so I would assume that they are not charged
> up to their maximum rated voltage for "shocking". Seems
> strange that an electric charge that would almost certainly
> be lethal to a normally healthy, conscious person can "shock"
> a fibrillating heart back into the "normal" electrical ry-
> thym, thus possibly saving a life. Dosen't it only take a
> couple of joules to be mortally dangerous?
>
> David Rieben
>
> ----- Original Message -----
> From: Tesla list <tesla-at-pupman-dot-com>
> Date: Saturday, October 23, 2004 6:38 pm
> Subject: Re: drsstc
>
> > Original poster: "Bob (R.A.) Jones" <a1accounting-at-bellsouth-dot-net>
> >
> >
> > Subject: Re: drsstc
> >
> >
> > > Original poster: "David Rieben" <drieben-at-midsouth.rr-dot-com>
> > >
> > > Bob(s):^),
> > >
> > > The latest capacitor technology has caps of much smaller
> > > volume/energy ratios than either of the caps that you mention.
> > > Difribrillators have a capacitor of appr. 5.2 kV at around
> > > 35 to 40 uFD rating and they are not much larger than say two
> > > combined microwave oven filter caps. I suppose their
> > > peak current rating dosen't have to be that great since
> > > they're designed to discharge across a relatively high
> > > resistance - human chest :^O Even with the conductive gel
> > > that they apply to the skin before shocking, the resistance
> > > would still probably be in the dozens, if not hundreds of
> > > Ohms.
> > >
> >
> > Hi David,
> >
> > Thats very very impressive 540J in the volume of 2 MO caps WOW. That's
> > comparable to an electrolytic cap for energy density.
> > It would require more than 1500 Panasonic 0.15uF/2kV to do that.
> > But as its has been said before its one thing for a cap to have to
> > chargefor a few seconds a few times a day.
> > and its a completely different duty to operate continuously.
> >
> > Seriously off topic (sorry Terry) but what the h$## are they
> > trying to do to
> > the patient 540J into his chest!!
> > Does it double as an elephant defibrillator too !!
> >
> > Bob
> >
> >
> >
>
>
>