Hi Craig,

Thanks for posting the info.

It sounds as though your MEN system is equivalent to the British PME (Protective Multiple Earthing) arrangement.

Does every house have its earth bonded to the incoming neutral, or do you have other grounding/earthing systems in use as in the U.K.?

The 30mA RCD/GFI setting is common here now as well, although 100mA is also still available and installed in some cases. Do you have "split-load" panels so that some circuits can share a GFI?

TPS [Linked Image] Tough Plastic Sheath???