Greg,
I've always found with Imperial-Metric conversions there is always some sort of a concession.
Wires over here are stated as {so many wires @ a given measured diameter), therefore we have something like 4.0mm² that has 7/0.85mm in the conductor twist.
That list of Table 8 makes me wonder if we don't have accountants in there somewhere.
I've never seen a 1.3mm² wire here, mind you, with inflation the way it is these days, you just never know.
