Increased tension due to pole raising
Increased tension due to pole raising
(OP)
We are looking at using phase-raiser on a transmission structure which would raise the conductor attachment points by 10'. The span is 600'. How would I determine the increase in tension in the conductor due to this change?





RE: Increased tension due to pole raising
Of course this is an aproximation, as the cable will stretch more with the increased tensions. To get an accurate result you need a proper sag & tension software.
John Alexiou
Alcoa Design Engineer
MSME Georgia Tech
RE: Increased tension due to pole raising
For 5 or 10 foot changes in structure height on spans that long, I don't think most would even consider the change in tension. If you are a PLS-CADD user with the SAPS feature, there is a routine in there to do just what you are considering.
If you are not on level ground, the tension may increase or decrease, depending on the pole being raised.
RE: Increased tension due to pole raising
I have Sag10, is there a way to get an accurate answer using it?
If not, I might try sending it to one of our other offices that has PLS-CADD.