Oh, and for anyone using PLS-CADD lately, it seems at least one of the Southwire PLS wir files on the PLS website had an incorrect value for the RBS of the conductor (by a few thousand pounds!). This is useful to us as we have some cases where we design the tower for 1" ice, but the sag clearances for less than that.)Īlso, read this article - it has some good points to read about creep vs load. For your own peace of mind, be VERY aware about how it calculates load and creep - it automatically takes the heaviest load case to be the one causing 'final after load', (compared to PLS-CADD where you can choose which is your 'load' case. Last I checked (which admittedly was over a year ago, Southwire Sag10 still had some known bugs that they had NOT fixed. The PLS software such as PLS-CADD, TOWER, and PLS-POLE are industry-leading software for the design of overhead electric power transmission, distribution. If you are doing plain sagtension calculations, I'd personally suggest against Southwire Sag10, and recommend PLS-CADD Lite. It uses the same conductor coefficients as Southwire Sag10, so if used properly, they should give the same result. I've been using it for 3 years as part of a large utility, and it's fairly easy to learn. I have used both Alcoa (now Southwire) Sag10, as well as PLS-CADD.įor the design of a full transmission line (from line routing, to prelim and detailed design, to checking and making quick field changes), PLS-CADD is supreme.
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