residential IG

[infinity]

If thhn i think required. Reason being that we can't reidentify #12 . If both are green then how do we tell them apart ? It is bit gray area if you use a red wire on 12-3 mc or romex to get the IG being its a cable.

I'm thinking that a metal raceway serving as an EGC and with one green IG EGC would be code compliant. I'm unaware of any requirement to distinguish an IG from a standard EGC.

 

[jim dungar]

Reason being that we can't reidentify #12 . If both are green then how do we tell them apart ?

Identifying and re-identifying are two different things.

Using your logic it would not be allowable to put 'identifying means' on two different 2-wire NM circuits in one box.

 

[Jim W in Tampa]

Identifying and re-identifying are two different things.

Using your logic it would not be allowable to put 'identifying means' on two different 2-wire NM circuits in one box.

If the wire is RED and i need a green or green/yellow then i call that reidentify

 

[jim dungar]

If the wire is RED and i need a green or green/yellow then i call that reidentify

So, would I.

But i was responding to when you said:

If thhn i think required. Reason being that we can't reidentify #12 . If both are green then how do we tell them apart ?

.

Cables have always had a 'different' set of rules for re-identifying.

 

[wireperson]

this is how I think would work , for the bedroom Im gonna use a 14/3 for homerun , black ,white and bare are the regular receptacles and red is going to be my IG reidentifying it with green tape , at the garage panel Im gonna install a regular grounging bar and an isolated ground bar all my re identifyed reds from the IGs goe to the isolated ground bar and then bring a separate ground from the meter combo outside the house , how's that?,Im not sure if Im violating the code by reidentifying the red with green tape.

 

[Jim W in Tampa]

this is how I think would work , for the bedroom Im gonna use a 14/3 for homerun , black ,white and bare are the regular receptacles and red is going to be my IG reidentifying it with green tape , at the garage panel Im gonna install a regular grounging bar and an isolated ground bar all my re identifyed reds from the IGs goe to the isolated ground bar and then bring a separate ground from the meter combo outside the house , how's that?,Im not sure if Im violating the code by reidentifying the red with green tape.

Sounds good to me. Am not sure about if legal to tape it green, i do know you can tape the white to be a hot. It would save on home runs and arc fault breakers

 

[LarryFine]

Did some factory wired cabinets at a Drug store before that just used the red of a 12-3 mc for the IG. We feed it with the typical green with yellow stripe style. At the time I didnt think remarking the red needed to be done for code.

I have used 12/3 MC for an IG circuit for POS terminals in a restaurant. I strip the red for use as the circuit's regular EGC, and use the green as the IG conductor, to be terminated where the MBJ is located. Nothing needs to be recolored.

 

[Flex]

I like that idea.