Against code or not

[Scott66]

I need some help with this situation. I'm working in a fast food restaurant adding two new circuits. I open the panel that I was told I needed to use and see that it is being supplied by a 60 AMP single pole breaker. This panel is a single phase panel and what the previous electrician pulled 3 #6 wires to this panel 1 hot, 1 neutral and 1 ground. Then they took the hot wire to A phase then used a jumper from A phase to B phase so that they have both A phase and B phase. I feel like this is against code, I'm I right or wrong. I have been looking in the code book and can not find anything on it yet. Thanks, for your help.

 

[K8MHZ]

I don't see the jumper as a violation.

 

[augie47]

The devil might be in the details but generally I would think was no Code violation. Depending on how the "jumper" is installed, there might be a violation in regard to the number of wires under one lug.

 

[gadfly56]

The devil might be in the details but generally I would think was no Code violation. Depending on how the "jumper" is installed, there might be a violation in regard to the number of wires under one lug.

That's a good point. So, in theory you could do it but the listing might stop you.

 

[augie47]

That's a good point. So, in theory you could do it but the listing might stop you.

The details would make the difference. I would gamble that a great majority of such installs would not be questioned if there was a "jumper". A more compliant method might be to use a connector such as a "polaris" tap and split the incoming #6 into two before terminating so you only has one wire per panel terminal..

 

[jap]

The details would make the difference. I would gamble that a great majority of such installs would not be questioned if there was a "jumper". A more compliant method might be to use a connector such as a "polaris" tap and split the incoming #6 into two before terminating so you only has one wire per panel terminal..

Or, maybe add a sub feed lug kit to the panel and move the jumper to it.


JAP>

 

[GoldDigger]

Just don't try to wire any MWBCs. :lol:

 

[cowboyjwc]

My only real concern would be that it could really throw off the phase balance of the main service, but I've seen houses fed with 120v.