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Running 2 dedicated lines in my dedicated room

Hi guys need your opinion on this, im running 2 20A dedicated lines for my audio room. The pathway for these 2 lines are the same from the subpanel to my room but it differs once they are running over the ceiling in my room. The cables are resting on the bracings of my ceiling which will then be covered. 
One outlet will be placed over the left corner  and the other will be at the right corner of my front wall. Since they follow a different pathway in my room there's some discrepancy in length to the outlet for both lines.
My worry is will this be an issue due to the difference in cable length especially with the grounding cable? I did a measurement and the discrepency between both the cable length will be around 4.5-5ft. I'm not sure if that amount of difference will cause any issues.
Please do advise would love to hear your opinions. I have not covered the ceiling yet so I'm able to reroute them.
128x128tjbhuler
lak's avatar
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lak
4,629 posts
 
If I understand your question correctly you want to know if the AC wiring length makes a difference, one will be 4.5’ to 5’ longer than the other.
Should not make any difference at all.
I’d be more concern if you were passing over some other type of a cable or dimmer that would possibly pick up some type of interference.

Out of curiosity; what type of wiring and what gauge wire are you planning on using?

mitch2
3,974 posts
 
I have three opinions about your post,
First, to your comment,
The cables are resting on the bracings of my ceiling which will then be covered.
I am not an electrician, and hopefully somebody here that is can weigh in, but I believe electrical cables (i.e., Romex) is required to be fastened to the floor joists and not "resting" on anything.  Hopefully, an electrician performed the work, and your comment above is simply a figure of speech.  If not, I suggest an electrician look at things before you cover up the area with a ceiling.
Second, to the length discrepancy,
I believe you are reading too many audio forums :-)
Third,
With two dedicated 20A lines, you will be further along than most here so don't sweat the length difference .   My only suggestion on this issue would be to consider whether you would ever need three dedicated lines before you put the ceiling in. 
giantsalami's avatar
giantsalami
223 posts
 
I recently added 4 outlets, 6 circuits, for my system. two of the runs I ran 12-3 insted of 12-2 and seperated the jumper between the top and bottom outlets. ( one outlet, 2 circuits) I should be prepared for any future upgrades. Just an idea while you are running the romex.
giantsalami's avatar
giantsalami
223 posts
 
...and no, like Mitch said, you do not want thr romex resting on anything.
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