Calculation Methodology
Sag and tension calculations follow the conductor mechanical behavior methodology described in CIGRE-324, Sag-Tension Calculation Methods for Overhead Lines.
- CIGRE-324
These references identify the calculation methodology used. They do not indicate certification or independent validation of ConductorPro.
Using ConductorPro as a Sag Calculation Tool
Engineers use ConductorPro as a sag calculation tool to evaluate conductor sag and tension for a modeled span. Starting from the conductor and span data, the same span is run through a range of operating temperatures and through separate ice and wind loading cases.
The sag and tension results are reported for each case, so it is possible to see how conductor sag, horizontal tension and support tensions change between temperature and loading conditions, and to export the results for review.
What the Results Show
Sag and tension results are reported for each temperature and loading case, so the engineer can review how a modeled span changes from one scenario to another.
- Temperature
- Conductor weight per unit length
- Loading case
- Conductor length
- Horizontal tension
- Vertical and total tensions at the left and right supports
- Sag
- Position values
Reading the Results
Sag changes across the listed temperature cases and across separate ice and wind loading cases. The values reported for any span reflect that span's inputs; they are not general design limits or promises of accuracy for other lines.