The fact of the matter is, that refrigeration equipment manufacturers, cannot reduce the leakage current from the compressor motor enough to satisfy anyone here that a fridge or other such appliance on an RCD supplied circuit.
Mike I don't understand what your saying.
Are you suggesting manufacturers can not reduce the leakage current?
Here in the US countless refrigerators and freezers are on 5 ma GFCI protection and are working fine.
The NEC requires this 5ma protection in a fast growing list of locations.