Originally Posted By: Geoff Hannis

But out of interest, Mike ... do you have any idea about what those earlier UK objections were? Something nebulous ... or something of real (practical) substance? think

In my view they were unjustified objections largely based on a misunderstanding of the Alternative leakage method and a wish to carry on using 60601 tests. Actually everything is now possible according to the latest 62353 but I would urge all those performing EST to consider switching to 62353 and mainly use the Alternative methods. No need for DC insulation testing either! So on a class I device only three electrical tests, Protective Earth Resistance, Alternative Equipment Leakage, Alternative Applied Parts Leakage. No need to power up (boot) the device and no need to do any mains reversal. Quick, reliable and easy!