Thanks MASU!! I believe that your Australian System is much like our 110 volt system in that the neutral line returns to the power source transformer (say on the utility pole) and is GROUNDED AT THAT POINT. I was trying to emulate that scheme in my earlier post. I know that in the US, if you put an ohm meter between neutral and ground in a NON-ACTIVE power plug (with all circuit breakers tripped) that you read a very low resistance.

Does my concept described above agree with your knowlege??

I suspect that if the original poster used the same schematic that they use in their US devices (only with all parts beefed up for 220v and voltage spikes etc) they might be home free.

Sincerely

Bill