I have made a high voltage, low current power supply (around 20kV) that is=
=20
tested and certified for being safe to touch. (It's all about current, wave=
=20
form and frequency). Stored energy (capacitors) must also be taken into=20
consideration.

When doing the current testing, a circuit representing the impedance of the=
=20
body that compensates for the change of physiological response of the body =
with=20
frequency is used. Figure A.1 from Annex A in IEC 61010-1.

Even though it may be safe to touch, it can still be a very unpleasent feel=
ing=20
(especially in combination with the sound it can make) and there is a risc =
of=20
secondary injuries when quickly retracting a handfor example.

/Ruben

--=20
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