Questions on Dedicated 20 amp home wiring

Dedicated power circuits see previous post below:

Mike

1. 182877-120426

Your first question is the most important.  12 awg solid copper wire. 

Don't use a fuse, use a breaker. on my list is to upgrade my breaker and maybe this thread will help me get to it but the standard circuit breaker is adequate.  

outlets don't matter as much as people think they do but a quality outlet should be used.  Most use Hospital grade. The main thing a good connection as cheap ones loosen up.

I put in 5 outlets and a 240 outlet.  I have half the outlets on the red leg and half on the black leg.  If I need to plug something in like a noisy switching power supply for a Roku, i plug it into the opposite circuit that my amp is on.

But people exaggerte the value of a dedicated circuit to minimize noise.  It will ensure you have adequate current which is 99% of the battle.  but the noise on your AC line comes mostly from outside your house.  My power regenerator has an oscilloscope built in and the power into my house has clipped sine waves and about 4% thd.  After regenertion it has perfect sine waves and .1% THD.

Still, noise in a power supply isn't nearly as bad as inadequate current.

Jerry

carlsbad2

Your first question is the most important.  12 awg solid copper wire. 

That cannot be stated with certainty without knowing:

1. The length of the run from service panel to rececptacle

2. Whether the run is in a conduit.

3. Whether there are any relevant local codes that may apply.

Notwithstanding the answers to those questions, 12 awg copper would be the minimum size that would be allowed. There can be good reasons to derate the circuit by using a larger gauge wire. It minimizes voltage drop and helps provide a lower impedance path to ground.

How open are the walls currently and is it easy to run the new line?  If yes, I might suggest running two dedicated 12 AWG wires off two 20 amp breakers.  This would give you a dedicated line to each of your power conditioners.  Overkill?  Probably, but you never know where you are gong to go in the future and if the lines are easy to run now.......   One last thought.  You might run a 10 AWG wire.  This is not required for a 20 amp breaker but, it would give you the option in the future if you decide to install a 240 volt outlet off a duplex 30 amp breaker.   Building over spec today has no real disadvantage and gives you options in the future that might otherwise not be available to you.   

I would go 10 gauge. I think std breakers are 15. You need not go 20amp. Typically one would have dedicated lines for amp(s)… and a dedicated line for power conditioner (s). If you’re doing it, I would do a total of 4 dedicated lines. The cost will not be hugely different and more flexibility.