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How can I find Unloaded AAMT Initial Tension and Unloaded AAT Final Tension (kg)??

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engrfahd

Electrical
Apr 3, 2018
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I have been asked to calculate the following parameters for a transmission line. We have very limited data on this.

I only have conductor size and span length. Is there a way I can calculate these parameters?

I don't expect the calculation but if someone can guide me towards the right direction because I am unable to find the resources on these items.

1. Unloaded AAMT Initial Tension (kg)
2. Unloaded AAT Final Tension (kg)
 
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If only you had the sag and conductor temperature during the sag measurement, you could do some calculations. Try including catenary as a search term and Google will have several introductory sources.
 
This may help:Link
Hint; calculate a span with a generous sag. Add wind and ice loading at low temperature. Calculate the tension.
Adjust the sag to get the percent of rated breaking strength that you want to use.
The link will help you calculate initial tension and final tension.
(I haven't done this for almost 40 years and I'm a little rusty. A LOT rusty.)

Bill
--------------------
"Why not the best?"
Jimmy Carter
 
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