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Dedicated Line Advise

I currently have a 20 amp dedicated line run to my small HiFi rig; amp, preamp, CDP, TT, power conditioning. I wish to add a second line using the same electrician who has worked on my house. It looks like he used 12 gauge Romex last time.

What are the key facts that I should know in case he is not familiar with doing wiring for audio systems?
I'm talking about the installation at the breaker box, e.g., keeping proper phase and preventing a ground-loop between the 2 circuits.
128x128lowrider57
lowrider57's avatar
lowrider57 OP
5,417 posts
 
russe41,
So, then the proper way to wire 2 dedicated lines is to have them both on the same leg, yes?
In my case, breaker #1 and 2 are on the same leg. Am I correct?

BANK "A"           BANK "B"
Switch #               Switch #    
1               A             2
3               B             4
5               A             6
7               B             8
9               A           10
.... up to # 20
mesch
3,479 posts
 
Lowrider, somehow I lost tract of your post and not responded. However seems you have gotten the info you requested, and more, from those that are far more knowledgable than I. Lots of great info here, thanks for the post. As pre willie, I have my audio lines at the bottom of my box and the dual phase breakers at the top. 
williewonka
3,075 posts
 
Lowrider - in your depiction of your panel - for two lines on the same phase....

You would have one switch on 19 and the other on 20 - which would be PHASE B

Alternatively, you could have the switches placed at locations 17 and 18 - which would be on PHASE A

Either option is OK - just keep these switches away from the two phase switch-pairs

Regards...
lowrider57's avatar
lowrider57 OP
5,417 posts
 
Willie and mesch,
  I’ve got the concept now. It will take some work moving old breakers, since the refrigerator and the dryer are near the bottom at #16 and 18.
Many thanks.

williewonka
3,075 posts
 
Lowrider - since you will be juggleing swtches - I believe the best place for the two phase switches will be closest to the end of the panel where the incoming wire connects to it - that way any noise will dissipate back to the supply

The audio switches would be at the opposite end farthest away from the two phase switches.

One other thing - ensure the electrician maintains the "power balance" between the two phases

Regards...
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