I am installing 40' steel poles for security lighting. My dilemma is I cannot run the conductors underground because of the ground conditions. Obviously aerial is my only option. Problem is the span is about 125 to 150' between poles. I find no restrictions in the code pertaining to length of span, only height. That is my first question. Is their a distance maximum? Second, if their is no max requirement I plan to use messenger wire to connect the poles in order to support the triplex. Any suggestions or "bewares" that perhaps you or someone you know has run into. If I start adding poles just for support purposes, the cost will go up substantialy which I am trying to avoid.
