OK, but 62353
has been around for a number of years now.
Although (as mentioned before) my aim here is simply to "continue the discussion" (and I believe it is one that needs to be discussed), I do wonder why the committees of electrical safety
Grandees felt the need to introduce the extra (both the Alternative and Differential) testing methods. Where did the "push" come from? Certainly not from the "shop floor", as far as I can tell.
On the other hand, the Alternative method may be useful for testing PC-based kit (not energised [no "boot-up"]) such as ultrasound units, lab analyzers and er, PC's; whilst the and Differential method may be useful for "heavy current" kit such as mobile x-ray units and so forth.
I have linked to
this article by John Backes before. It gives a good
precis of the stuff we have been discussing. It is a bit old now, so if anyone can link to a better one, feel free to go ahead!
This
.pdf also offers some clues about which Method to apply.
... selection of which should be based on the design of the device
