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- Path: sparky!uunet!mcsun!Germany.EU.net!unido!sbsvax!coli-gate.coli.uni-sb.de!sbustd!chbl
- From: chbl@sbustd.rz.uni-sb.de (Christian Blum)
- Newsgroups: sci.electronics
- Subject: Re: 25KV (was: SHOCKING STORIES)
- Message-ID: <1992Jul30.114606.14731@coli.uni-sb.de>
- Date: 30 Jul 92 11:46:06 GMT
- References: <1992Jul28.222944.8819@irisa.fr>
- Sender: news@coli.uni-sb.de (Usenet news system)
- Organization: Studenten-Mail, Rechenzentrum Universitaet des Saarlandes
- Lines: 16
-
- saouter@irisa.fr (Saouter Yannick) writes:
- > Is there anyone here to explain all the ways of dying upon electrical shock (tetanos of
- > the heart, burning of the heart or brain ...) ?
-
- It's the CURRENT that damages, not the voltage. They are coupled by Mr Ohm's
- simple law U=RI. You see: to get a large I, you'll have to have a low R or
- a high U :-). If the power source has a high inner impedance (think of it as
- a series resistor), it won't be that worse touching it, since the whole vol-
- tages drops on the inner impedance, you get only a low U and (see above).
-
- In short: power sources are dangerous to humans if they are
- - of low inner impedance and
- - of a voltage that is high enough to produce a dangerous current through
- your body.
-
- Chris.
-