It's not clear to me why the resistance of copper at temp tp which is what we are considering is affected by any of those factors, all they do is reduce the current rating, as the max permitted temp tp is reached at a lower current! It's not the clearest of ways of looking at it. Regs-speak strikes again
That said, they clearly don't want you to think about temperature and resistance as Logical intermediate steps in the calculation, but that rather obscures what is going on.
That said, they clearly don't want you to think about temperature and resistance as Logical intermediate steps in the calculation, but that rather obscures what is going on.
