> Yeah, That's pretty much how we have always done it. Except we have no
> need for the transformers - since our 3 phases are 415V each, we tap in
> at 240VAC

I'm a bit skeptical about not having a transformer locally.  That's just
asking for some very nasty problems with lightning strikes anywhere near
either the house or where the ground is.  One good reason for a transformer
is so that everything can be grounded in one place.  That way when lightning
strikes nearby and glitches the local ground, it is all common mode noise to
the house wiring and the inhabitants inside.

> Residual Current Circuit Breakers or Ground Fault Breakers that trip at
> 30mA are pretty much standard now.
>
> So you guys finally caught up? :-)

Maybe not.  Most circuits even in new houses do not have ground fault
circuit breakers.  Usually just for outlets over sinks and outdoors.
Bathroom outlets often have the ground fault interruptor built into the
outlet and a normal breaker down in the basement.


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