On Jul 25, 4:38*am, Andy wrote:


A more powerful modern traction system doesn't
necessarily generate twice as much heat just because it has twice as
much power at its disposal.


I^2*R still applies.

Power (w) = Volts (V) x Amps (A)

Same 630 V voltage applied, double the power = double the current.

Double the current and the heating effect in all conductors goes up 4
times.

That is one of the laws of electricity.

Either you are continuing to suggest - as I have already commented -
the laws of phyiscs are suspended or you just plain do not understand
it.


I give up.

--
Nick