The most useful experience we made at school was with a power supply design=
ed to try&feel the current flow across your body. I don't know if that's co=
mmon in electronic schools but it should.
You get one terminal in your hand and the other near the elbow, you/the tea=
cher can vary the current with a knob. Then you feel the current flowing - =
muscles blocking... impressive.
=20
Apart from that I've just only experience with a few 230VAC shock. The one =
I remember very well is when I accidentally touched a connector at our home=
 mains entrance. Probably being before the RCD made it more effective than =
usual...
=20
Rossano
=20
> From: rubenjonsson@bredband.net
> To: piclist@mit.edu
> Date: Sat, 28 Mar 2015 11:54:29 +0100
> Subject: Re: [EE]:: Risk of death from low to very low currents
>=20
> I have made a high voltage, low current power supply (around 20kV) that i=
s=20
> tested and certified for being safe to touch. (It's all about current, wa=
ve=20
> form and frequency). Stored energy (capacitors) must also be taken into=20
> consideration.
>=20
> When doing the current testing, a circuit representing the impedance of t=
he=20
> body that compensates for the change of physiological response of the bod=
y with=20
> frequency is used. Figure A.1 from Annex A in IEC 61010-1.
>=20
> Even though it may be safe to touch, it can still be a very unpleasent fe=
eling=20
> (especially in combination with the sound it can make) and there is a ris=
c of=20
> secondary injuries when quickly retracting a handfor example.
>=20
> /Ruben
>=20
> --=20
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--=20
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