sag and tension design
sag and tension design
(OP)
I have researched the forum and have been unable to find the answers I am looking for.
In doing this project I have chosen the initial design conditions, now I want to build a table to show the sag and tension changes based on the temperature changes. What is the formula for calculating sag/tension based on the temperature changes.
I noticed that STUJ had a design program he posted at the following location: castnet.dyndns.org/lview.htm I have tried to go there but this link seems to be down. Is there another location or does anyone else have it?
In doing this project I have chosen the initial design conditions, now I want to build a table to show the sag and tension changes based on the temperature changes. What is the formula for calculating sag/tension based on the temperature changes.
I noticed that STUJ had a design program he posted at the following location: castnet.dyndns.org/lview.htm I have tried to go there but this link seems to be down. Is there another location or does anyone else have it?






RE: sag and tension design
If you can find the proper stress-strain curves and find a copy of Alcoa's "A.C.S.R. Graphic Method for Sag-Tension Calculations", you can calculate the tables yourself (no formula). This would be very time-consuming.
For a single design, you can probably get the conductor manufacturer to provide the tables.
RE: sag and tension design
I have contacted a cable manufacturer and they did a preliminary report (based on the information that I provided) on SAG10. What they provided for sag and tension was close to what I had calculated for an initial stringing design condition for the messenger. The problem I have is once I have determined the initial design condition at the temperature I want how do I set up a stringing table for the remaining temperatures?
RE: sag and tension design
RE: sag and tension design