Vincent, please reference IEC 60664-1 for detailed answer of your question.
"NOTE The breakdown voltage of a clearance in air for a homogeneous field
(withstand voltage case B in table A. 1) is, according to Paschen’s Law,
proportional to the product of the distance between electrodes and the
atmo
Hi, Vincent.
As Bernd pointed out, IEC 60664 gives the best information on the scientific
basis for Clearance and Creepage distances.
Paschen’s Law will (theoretically) have no effect on Creepages. Theoretically,
Creepages exists in two dimensions. Realistically, even the thinnest copper on
a
Dear Vincent,
I do not know IEC 60601-1, but as it references IEC 60664-1, I assume the same
principles of insulation coordination are applied. In fact there is a book on
that topic by Klaus Stimper "The Physical Fundamentals of Low-Voltage
Insulation Co-Ordination", but the English version see
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