Hi No good pictures just now, but:
pictures (google)
http://tinyurl.com/o967hjwPretty like 2 phase from your delta 208V except for grounding at transformer.
Fuse or (later 2 pole breaker) on both live live lines to a single phase outlet.
Local grounding similar to NEC. No bonding to N, (no N existing)
It has been used some different arguments to use this system. Most common: A) 3 phase available with 3 wires only. B) safer, because its harmless until fail on the 2'nd phase.
It is pretty common to have 3-phase here, I even have at my cabin. Good for the water pump :-)
Another difference from North American systems: Copper only up to 16 mm^2. Pretty common wit wires on the wall here: (pictures after e lightning accident)
dsk
PS
Ground connections connected at copper clamps under plastic cower in top of cabinet. (pic)
DS
