Run one solid conductor in a 3 phase circuit with 2 conductors stranded?

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azebra

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COLS. OH. USA
480volt, 100' total length, less than 10 Amp draw, parts shuttle. Supply house sent one solid spool, 2 stranded spools, no big whoop on difference in performance?
 
Pulling solid conductors through conduit 100ft is not going to be something I would want to do unless that run was dead straight...
In the southeast it was a common spec for all conductors 10 and smaller to be solid, pulling was not a big problem.
 
Based on the voltage, current, and length, I expect that this run is in 12 or 14 AWG, and not a problem for the pull even if solid.

-Jon
Not concerned about the pull, little concerned with the difference in performance: ie resistance difference between solid and stranded..


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Not concerned about the pull, little concerned with the difference in performance: ie resistance difference between solid and stranded..


Sent from my SM-S911U using Tapatalk
Supply house is over a hour round trip away, didn't want to have to add that to the cost of this service call!!

Sent from my SM-S911U using Tapatalk
 
Not concerned about the pull, little concerned with the difference in performance: ie resistance difference between solid and stranded..


Sent from my SM-S911U using Tapatalk

No significant difference in resistance. There might be a slight difference which would result in slight voltage imbalance, but I'd bet it was in the noise. You might see a 2% difference on your voltage drop (eg. 1% on one wire, 0.98% on the other), which you wouldn't be able to notice given the background of other imbalance sources.

If these were _parallel_ conductors then it would be a problem, because slight differences in resistance can result in large uneven current distributions. But we are not talking parallel conductors here.

-Jon
 
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