On Mon, 11 Mar 2019 01:36:59 +0000, The Natural Philosopher wrote:

Same thing is observed on telephone poles.Â* Any explanation?Â* Is
the
pole put in at a bit of an angle so it's always leaning one way?

The weight of the cables puts an assymetric laod on the poles near the
end of long cable runs

Though coming from the weight the tension in a phone line is much
higher to get a shallowish catenery so the line doesn't flail about
too much in the wind. It's really only poles at the end of a line or
where the line sharply changes direction that have assymetric forces.
With poles roughly equally spaced and in a row the forces balance
out.

--
Cheers
Dave.