×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Properties for 1.68" 2032 MCM 72/7 ACSR

Properties for 1.68" 2032 MCM 72/7 ACSR

Properties for 1.68" 2032 MCM 72/7 ACSR

(OP)
Can someone provide me linear or non linear properties for 1.68" 2032 MCM 72/7 ACSR Conductor to use in PLS CADD?

I found properties for MOCKINGBIRD which is having 2034.5 kcmil. But for that conductor also I could not find details for coefficient of linear expansion and Modulus of elasticity.

I also need properties for 1/2" ALUMOWELD earthwire.


Thanks

Nitin Patel



 

RE: Properties for 1.68" 2032 MCM 72/7 ACSR

If you have SAG10 by Alcoa now owned by Southwire, you may find it there.  You can also contact Southwire to get the properties.  If you know the strand diameters, I'll look at my Southwire conductor manual when I get to work tomorrow.

You can also call PLS-CADD support and see if they have the properties.

_____________________________________
I have been called "A storehouse of worthless information" many times.

RE: Properties for 1.68" 2032 MCM 72/7 ACSR

Here are the coefficients from Sag10:

                         K0          K1         K2           K3           K4        
Outer    Initial    -1406.9    45658.3    33762.6      -144441    95817       80600    MOE
Outer    Creep    -341.2    26838.9    -47029.7    51818    -24014      0.00128    Thermal
Core    Initial    -6.7    8532    12397.9    -22859    9391           11600    MOE
Core    Creep    -6.7    8532    12397.9    -22859    9391           0.00064    Thermal

The stranding is 72/7,
Area: 1.6650
Diam: 1.680
Weight: 2.160
RBS: 46,700
Chart 1-1053
2032.1 KCMIL
There was no name for it in SAG10.

Power Line Systems has a tech note on their web page that tells how to input data into conductor files to get sag and tension results that correspond to SAG10.
 

_____________________________________
I have been called "A storehouse of worthless information" many times.

RE: Properties for 1.68" 2032 MCM 72/7 ACSR

To get the 1/2" alumoweld properties, I need to know the stranding. 7#5 AW has an OD of 0.546".

_____________________________________
I have been called "A storehouse of worthless information" many times.

RE: Properties for 1.68" 2032 MCM 72/7 ACSR

(OP)
Mr Tower

Thanks for providing properties.


Nitin Patel

RE: Properties for 1.68" 2032 MCM 72/7 ACSR

No problem.  Post the stranding info for your alumoweld ground wire and I can look up the info for it.

_____________________________________
I have been called "A storehouse of worthless information" many times.

RE: Properties for 1.68" 2032 MCM 72/7 ACSR

(OP)
Mr Tower

In plscadd we have to indicate temperature at which stress strain data collected. Can you give some idea what could be temperature for data furnished?


Nitin Patel  

RE: Properties for 1.68" 2032 MCM 72/7 ACSR

The stress-strain data was done at 74°F although I don't think it makes much difference.  If you have lidar laser points of the wire sag at a known survey temperature you can get the sags and tensions for other conditions of core temperature.  If you can only guess the initial stringing tension and temperature, your predictions of future sags will be off.

You may also have to consider Elevated Temperature Creep for this conductor.  There is such a high percentage of aluminum vs steel in the conductor it is susceptible to extra creep.  The trick is to know the temperature history of the conductor over it's life.  PLS-CADD does not address ETC so to take it into account, you need SAG10 from Southwire which does have a method to calculate the extra temperature you need to put into the wire.

_____________________________________
I have been called "A storehouse of worthless information" many times.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources