Aluminium Overhead Bare Conductor
Aluminium Overhead Bare Conductor
(OP)
Why? in aluminium conductors elastic modulus changes but coefficient of linear expansion doesn´t change, (of course, changes over time)
If there was no electricity there would be no internet. Good point, don´t you? :D






RE: Aluminium Overhead Bare Conductor
Why overhead?
Why aluminum?
Why bare?
Why does the elastic modulus change with time, but the coefficient of linear expansion doesn't change?
WRT to the last question above, I'd have to reply that the contained assertion is not true. I.e., aluminum in service is subject to strain hardening, which raises the yield point but does not change the elastic modulus nor the coefficient of linear expansion. If you have evidence to the contrary, I'd like to hear about it.
Answers to the first three questions above are all basically economic in nature.
Mike Halloran
Pembroke Pines, FL, USA
RE: Aluminium Overhead Bare Conductor
RE: Aluminium Overhead Bare Conductor
Now the day is a success.
Mike Halloran
Pembroke Pines, FL, USA
RE: Aluminium Overhead Bare Conductor
If there was no electricity there would be no internet. Good point, don´t you? :D
RE: Aluminium Overhead Bare Conductor
I suppose the apparent E of a length of stranded wire could also go down, as individual wires break from old age or unreported impact, and as their net cross section is reduced from chafing or corrosion.
... but I'm speculating. Have you got some old wire to test?
Or a way to test it? Or test data?
Mike Halloran
Pembroke Pines, FL, USA
RE: Aluminium Overhead Bare Conductor
If there would not electricity, there would not internet :D