Hi!
Just for fun I had a look in the the draft 2005 NEC on the web to see how hard it would be to fit metric sizes into the tables. (The result can be found in the Non-US area.) Anyway, to the question: How many of these tables do you use in the real world? 310.16 of course, but the rest?
I can't think of very many places you would use single insulated conductors in free air.
