That's all very well for laptop "bricks" ... but what about Class II equipment with a built-in power supply, no power supply at all, no exposed metal ... or anything else we can get a probe on to?
OK ... some folk may say (in situations like that):- "where's the risk"? Those same folk may also consider a Class II Nebulizer Compressor (for example) to be beneath their dignity to bother about. But don't forget that kit like that often faces a hard life in patients' domestic dwellings!
In fact, in such cases, I think I would wrap my trusty ESU plate in a saline-dampened gauze before carrying out (and
recording) my electrical safety tests! You know, just to be sure.
By the way (and back to Bricks), are we saying that we need not bother with the extra expense of a "
medical grade" Brick, as long as we can demonstrate an Equipment Leakage of less than 100 µA ... in accordance with the quick and easy "Mike Test" as laid out in the above post?
And what about Class I bricks? Less than 500 µA in SFC?
