On 29/07/14 16:51, John Williamson wrote:
To get back to the original consideration of copper or aluminium
transmission lines, there are no hysteresis losses in the line. You will
get some if the lines are made of ferrous metals, though, but the
hysteresis losses would be swamped by the resistive ones.

Yep.

Mind you the AL ones are wound on steel cores.

But the resistive losses dominate. Massively.

Because the flux density on a single wire at a few hundred amps only is
very very low.




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