Quote:
Originally Posted by Dominicwasalreadytaken
There is absolutely no truth to that statement. It was pretty funny to read, though.
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Power lines do sag when they carry more current. Not because of increased mass, but because of increased heat (more current through the wire's resistance).
That's part of what caused that big blackout in 2003.. there were a number of lines that sagged into trees because of the increased load.