Why do cables between pylons have slack in them?

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Cables between pylons always dip but surely a lot of money could be saved if they were pulled taut.

In: Engineering

8 Answers

Anonymous 0 Comments

Cables expand and contract when they get hot/cold, they also are blown on by the wind and have birds land on them.

A taut rope is way more likely to snap, so it would cost them more long term in material upkeep than it would to add a foot of slack into the system.

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