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Dedicated 10 gauge NM-B lines twisted or straight

I’m not sure if it matters, but I’m going to run three separate, but parallel 80 foot, 10 gauge lines to the receptacles in my listening room.  I plan on spacing the wires about 12-24 inches apart, but I was curious if anyone has an informed opinion or insight as to whether it would make a difference to have each line twisted some, or flat, as I think most electrical wires are installed flat, to make them easier to pull.  Twisted wires supposedly would reduce magnetic fields, but I don’t know if it would then cause other problems, such as increase capacitance.  

drbond
oldelectricalinspector
58 posts
 

Listen to Erik,  I’ve been an electrician for a long time,  his points about voltage drop are sub panel are valid

rich

goleksiak
75 posts
 

...y, but imagine sitting there with your 10AWG wiring, wondering "how much better would it sound with 6AWG?" 

drbond OP
484 posts
 

It turns out that the voltage drops are nearly identical for 10 gauge at 120V vs. 6 gauge at 240V.  In my previous calculations, the 6 gauge was calculated at 120V, not 240V.  A 4 gauge wire might be a little better, but I haven’t run the calculations on that.

erik_squires
17,544 posts
 

My suggestion for the dedicated panel is of course based on distance.  At short distances you may not have any benefit, but same could be said for 10 gauge honestly.  If you are 50' or more away and want to run 4 circuits, then the sub panel wins. 

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