Or communicati > The phone lines were relatively high up, and when new > cable lines were installed to provide cable TV, the only > place for them to go was lower. Unless of course the > whole pole was redone.
Does "redone" mean rearranging existing cables on the existing pole, or setting a new pole?
Typically, power and telephone companies rearrange ("make ready") their facilities to accommodate CATV above telco. If they can't make room for CATV on a pole, they replace the pole. Of course, they charge the entire "fully allocated cost" to the CATV company.
What you describe is an unusual situation. I'd like to see a photo of one of the poles.
My guess is that most of them are telco. A photo would help.
Then I think what you meant to say was "... big shortage of carrying capacity for very high voltage powers lines that connect generating stations to substations."
Neal McLain