In message <[email protected]>, dated Fri, 8 Mar 2013, Derek Walton <[email protected]> writes:

Well folks. I disagree. Here's why. If the power supply is used in an application were the output is referenced to ground , you will not be stressing the primary to secondary circuits. If your power supply isn't man enough for this you should place warnings in your literature BEFORE purchase is made. 

That's a safety issue, not an immunity issue. It is, however, one that should be addressed in IEC 62348-1, but probably isn't.
--
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