ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades RCD's in Australia?

It does indeed sound as though Ireland is getting a little carried away! I've seen a PoCo install their own D.P. isolator on their board a couple of times, but it's far more usual for the main RCD or switch in the panel to be the only isolator here (other than pulling the PoCo fuse, which is sealed).

The voltage-operated ELCB (Earth Leakage Circuit Breaker) was used for many years in rural parts of the U.K. as well. I see many which are still in service. For those who are not familiar with this old system, look at diagram #4 here.