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>=20
> 2. Approximately at what voltage does it start becoming dangerous?
>=20

According to IEC 61010-1 3rd edition - Safety requirements for electrical=20
equipment for measurement, control and laboratory use - Part 1: General=20
requirements:

(not an exact quote)

6.3 Limit values for accessible parts

6.3.1 Levels in normal condition

The a.c. voltage levels are 33V r.m.s., 46.7V peak and the d.c. voltage lev=
el=20
is
70V. For equipment intended for use in wet locations, tha a.c. voltage leve=
ls
are 16V r.m.s., 22.6V peak and the d.c. voltage level is 35V.

Voltages above those levels are deemed to be hazardous live if one or both =
of
the following levels are also exceeded at the same time:

Current levels:
0.5mA r.m.s, for sinusoidal waveforms, 0.7mA peak for non-sinusoidal wavefo=
rms
or mixed frequencies, or 2mA d.c.

Capacitive charge or energy:
45uC charge for voltages up to 15kV peak or d.c.

350mJ stored energy for voltages above 15kV peak or d.c.

Other values (higher) is applicable for single fault condition.


/Ruben

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Ruben J=F6nsson
AB Liros Electronic
Box 9124
200 39 Malm=F6 Sweden
www.liros.se
Tel +46 40142078
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D
Ruben J=F6nsson
AB Liros Electronic
Box 9124, 200 39 Malm=F6, Sweden
TEL INT +46 40142078
FAX INT +46 40947388
ruben@pp.sbbs.se
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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