Yellow neutral wires

[bunuelbresson]

Hi,

A contractor installed yellow neutral wires on a 3 phase 4 wire system instead of white.

Do you guys think this is acceptable or should the contractor re-pull white wires?
There are 15 neutrals in the pannel overall.

Thanks.

 

[ggunn]

Hi,

A contractor installed yellow neutral wires on a 3 phase 4 wire system instead of white.

Do you guys think this is acceptable or should the contractor re-pull white wires?
There are 15 neutrals in the pannel overall.

Thanks.

It's a code violation, I believe, unless they are taped white (if they are large enough to do that ).

 

[cadpoint]

A Neutral is one of the few Colors that is called out in the NFPA; see Article 200.6.

I don't think they made any exception as you described in you OP.

Now if your in Europe or even Britian, you miles may very.

 

[Nycedreemz]

Hi,

A contractor installed yellow neutral wires on a 3 phase 4 wire system instead of white.

Do you guys think this is acceptable or should the contractor re-pull white wires?
There are 15 neutrals in the pannel overall.

Thanks.

Unless the conductors are large enough to re-identify then i would consider it a violation. Not sure what voltage your 3phase system is but, on a 480v system yellow is the third phase conductors color.

It would be evident as soon as you open the panel what those yellows were doing but if I were to run across that same yellow in a junction box i could troubleshoot incorrectly by assuming that yellow was a "HOT" instead of neutral.

In my opinion neutrals should be white, gray or if large enough re-identified with white tape.

 

[bunuelbresson]

It's a code violation, I believe, unless they are taped white (if they are large enough to do that ).

12AWG... not large enough

 

[cowboyjwc]

Unless the conductors are large enough to re-identify then i would consider it a violation. Not sure what voltage your 3phase system is but, on a 480v system yellow is the third phase conductors color.

It would be evident as soon as you open the panel what those yellows were doing but if I were to run across that same yellow in a junction box i could troubleshoot incorrectly by assuming that yellow was a "HOT" instead of neutral.

In my opinion neutrals should be white, gray or if large enough re-identified with white tape.

That's not necessarly correct, it might be a trade practice, but it's not a code requirement.

 

[ggunn]

12AWG... not large enough

Code violation then. Pull and replace.

 

[Nycedreemz]

200.6 (A) An insulated grounded conductor size 6 AWG or smaller shall be identified like this
1. A continuous white outer finish
2. A continuous gray outer finish
3. Three continuous white stripes along the entire length other than green insulation
4. Wires that have their outer covering finished to show a white or grey color but have a colored tracer to identify the manufacturer meet this provision

 

[Nycedreemz]

That's not necessarily correct, it might be a trade practice, but it's not a code requirement.

My fault, not trying to spread mis-information. I just follow the B_O_Y term when wiring 480V systems. The color of the conductor is indeed not determined by code. I was just giving a fairly common example of how an inconvenience can come up from the OP's situation.

 

[cowboyjwc]

My fault, not trying to spread mis-information. I just follow the B_O_Y term when wiring 480V systems. The color of the conductor is indeed not determined by code. I was just giving a fairly common example of how an inconvenience can come up from the OP's situation.

And I agreed with everything else you said.