Wiring 2 outlets to 2 dedicated 20 amp circuits with a single 10/3 electrical wire.


Here's an idea (and it is code compliant), using one 10/3 romex electrical wire (three insulated conductors, and a bare ground wire - 10 gauge), you can wire two outlets to a double pole breaker (and yes the legs would not be the same, which on a quiet electrical system is not a big deal).
 

In this situation, 2 hot wires from the outlets would be wired directly to each of the circuit breakers, the neutral would be bridged between the two outlets and then connected to the appropriate spot on the panel, and the grounds for each outlet would be attached to the single ground wire that goes back to the panel.  This would all appear within a quad outlet wall panel (ie. Two 20 amp outlets side-by-side)

For a long 70 foot run this seems prudent thing to do, less costly and kosher.

emergingsoul

Showing 12 responses by emergingsoul

 

Why do you need all these outlets when you have a massive power plant? Or maybe these are related to other areas. Personally I don't like duplex outlets for stuff you don't really need them for, but maybe this is to reduce the size of the electrical wire jungle.

Also saw on your system that you are using both an M scaler and a chord dave? Didn't know this was a good pairing.

 

Yes I know both new circuits or an alternating legs, and that could be a real weakness. But if all the legs where I live are generally quiet then I don’t see the problem on this point.

The other issue, there is a common neutral wire representing a return connection to the panel, but it’s not the incoming voltage wire. Are you saying noise could bleed back to the audio equipment from the neutral? I’m not sure this is really that meaningful - is it? And is this the overall point?

Keep in mind this is a 70 foot run for a romex wire.

I’m trying to keep this conversation understandable because I think people get lost when it’s not dumbed down for non-engineering finance side people

There is a shared neutral and I’m still unclear why this would be such a bad idea.

Many people putting in dedicated circuits, like me, don’t know all the variety of ways to get 2 20 amp circuits to feed your system. Mostly, it’s being done to feed amplifiers using 10 guage wire to ensure Power demands are met. And separate circuits for rest of the gear makes sense to reduce noise, and enhance supply of course.

While it may not be 2 dedicated and completely isolated circuits, it accomplishes the same thing. If you’re a purist, you have cause to be concerned. As a realist, it would appear perfectly kosher.

 

Jea48

The comments you make are probably clear to some but not me.

Are you saying that the neutral sharing back to the panel is a problem? And if so maybe it's unclear to me why this is.  Not sure I follow the rationale about Power supplies of components sharing in this situation.  Where is the Sharing coming from?

Truth be known, I specifically directed the electrician to create two dedicated lines on the same leg, and then he pulled this crap and I had to live with it.  And having considered what he did, I'm trying to understand whether I should rip it all out and have it redone by someone else. His proposal was unclear but we discussed it and then he comes and starts doing the work and I see one wire coming out of the wall and I ask what the heck is going on. The project didn't go very well. They did manage to install one dedicated circuit elsewhere.  I couldn't get a second dedicated in the elsewhere room because I ran out of room on the panel.  

jea48,
 

You say that, Zero amps will return on the shared neutral conductor to the source).

Not sure why this would be happening. And then from this point on in your response above I sort of lose an understanding of what you're saying.

But I'm really trying to follow. And I think for many it would be nice to know the rationale here as well, as this is a very profound issue.

In this case each circuit does have a separate breaker. The voltage is being sent to the outlet from separate starting points on the panel.

The issue i see is the neutral going back to the panel. And here the neutral wires are joined between the outlets and then directly wired back to the appropriate spot on the panel. Further, the ground similarly is being handled the same way and routed back to the panel. The two hot conductors are separate, from their own breaker, in support of the outlets.

It's crystal clear this is not a true dedicated circuit.  But that's not the issue. The issue is trying to clarify why noise somehow is affecting the outlet in a manner that impacts performance of a system.

Jea48

Why are you talking about a step down transformer? this is a multi branch circuit involving 2 outlets, and a double pole breaker.

Appreciate all the commentary but my God, wtf?

 

Most all of us are at the mercy of a 240 V system, that involves step down transformer’s,etc.

We all have a panel in our house with busbars that feed the individual circuits. And there are two legs of 120v power distribution along the bus bars alternating between the circuit breaker’s.

Now is the issue here, jea48, that the Multi branch circuit involves two legs?? Versus the same leg, which isn't allowed with a multi branch circuit.

It seems you’re being more profound by raising issues with the overall power in flow into a house. By design we all live with that.

I am focused on 2 hot wires coming from the panel to support 2 outlets and then the shared returns related to a neutral wire and a ground wire. To this point I haven’t heard any direct problems with this issue. Only in a very broad context dealing with the overall power supply into the house.

So the question becomes, dedicated versus multi branch circuit, is this a problem? To say it’s not isolated is not answering the question as to why it’s a problem. Each of the outlets receives dedicated power off the bus bar. This is a fact.

My question focused on noise which is the issue. And if there’s no noise coming from the neutral, and the ground, assuming these are connected correctly at the panel, and the panel secures the ground via a stake in the dirt, what is the problem??

At long last I think I understand what’s being said here and it concerns me that the work is already done and that I may have to take a full loss on the work that was done even though I haven’t paid for it yet.

Basically I have two circuit breaker’s where the related hot wires from each breaker are connected to the two outlets and there is a neutral that bridges these two outlets and then the two hot wires are wired back to the panel to a double pole breaker. And because I’m on alternate phases the voltage flow is circular. And because of the push pull action of the circuit because it’s on alternate phases the neutral wire has no current. So the flow goes from the first breaker to the first outlet to the second outlet and then back to the second breaker. Each breaker is 20 AMps.

So this means the first outlet is used and contaminates the second outlet there by introducing noise to the second outlet. Basically, the configuration is crap and the second outlet is of no value since it’s not dedicated. I don’t understand the 120+120 involvement between the two outlets, in terms of is this a 240 V quad panel? It was hard for me to appreciate that the second hotwire has a directional flow back to the panel from the outlet. But since it’s on different phases I guess this makes sense.

If this all makes sense and it’s correct then it seems I have to fix the crap work that was done. I asked for two dedicated circuits and I thought it involved two Romex wires as I was told it would and then I got this one wire crap. To say the least I am super super pissed. And now I’ve got a quad panel on my wall and wonder if I can do 2 dedicated circuits to be wired into that one 2 outlet plastic box inserted into my wall. Or do I need to create a new hole in the wall for the new dedicated outlet and convert quad panel to one circuit. What a mess.

it’s the push/pull activity along the hot wires that affects the return of any current to the neutral. Because each leg for the double pole breaker is not in the same phase with the other Circuit it creates a push pull current flow across the outlets. And any imbalance between the current draw from either outlet goes through the neutral - sort of like relieving the pressure I guess.

Which basically means you have current flow going to the first outlet along the Hotwire and then current crosses over to the second outlet by way of the neutral wire which connects the two outlets, and then the hot wire from the second outlet has current flow back to the 2nd breaker of the double pole breaker. It is a circular flow back to the panel in this double pole configuration

mwh777 create

I totally disagree with your comment about electricity 101. To say that people should be somewhat educated about electricity before they ask merit filled questions is disappointing.

It’s my view the answers should be structured in layman terms. Otherwise how are the common folk people supposed to understand it.

It’s still troubling that the flow of electricity through a multi branch circuit is still confused.  the nature of how the Circuit flows back to the panel  on the second hot wire is difficult to understand for us layman without a better understanding of the push pull activity due to different phases on the circuit panel. Further, when there are imbalances in Energy demand from the two outlets, as there always is, how does this impact the return flow back to the panel in light of the different phases used for each outlet.

This can be confusing for us Laymen and while I think I sort of understand it, it is still a little bit foggy.