PLS CADD doubtfully

[ekieder]

Hello to everyone

http://www.eng-tips.com/threadminder.cfm?pid=238

I´ve just started to work with PLS CADD, I´m having a little bit of trouble, and I´d be really grateful if someone could give me a hand.
I have got cartography, towers´ models, described extra-cost & prohibited zones and already defined criteria
and now I´m trying to use Optimum Spotting. We are simulating a double circuit line but when I run simulation
I can just get a simple circuit, no fibre line and no grounding cable.
What am I doing wrong? Because to simulate optimum spotting assigning differents towers it has got to take into
account 2 circuit and fibre´s forces. Hasn´t it?


Thanks a lot

 

[ekieder]

Nobody can help me?
I´ve seen how people on this forum (i.e. rubenpezu) speaking about PLSCADD.

 

[lookintomyeyes]

Hi ekieder! Sorry, I'm not on the boards often, but I use PLS-CAD daily.
Optimum Spotting only strings 1 phase of the entire tower, of whichever phase you select when using Optimum spotting. So it will not string in all of your conductors, unless you go back after and manually add them in.

Are you using Method1, or Method 4 structures in your analysis?
When you create the structure models using M4, I believe PLS-CAD calculates the max allowable load on the structures.
For Method 1, you hand calculate the allowable wind and weight spans, and it uses those values for spotting.

 

[ekieder]

Thanks a lot for your help

I have got another question, as I am running PLS CADD for a non specified rule.
I think I didn´t understand well the way of using PLS Tower with PLS CADD.
With PLS CADD we obtain a model of how the forces affect towers.
So imagine I have to run for example EN 50341-3-16 for Norway
I would have to modelise all towers applying all different force cases contained
in the rule. After having modelised all cases I ´d obtain a model to use in PLS CADD.
In what does it consist? Does it give some short of limits? Or does it interact with metheorogical data?

Regarding the cable criteria, which percentage of ultimate do I have to set (Every Day Stress / defined criteria p.e. 30%)?



Thanks again