Stevenfyeager
Senior Member
- Location
- United States, Indiana
- Occupation
- electrical contractor
Is it acceptable to tag and change colors of #12 wires in an mc cable ? I know you can't change colors of wires in a conduit. Thanks
Re indentifying wires in mc cable?
- Thread starter Stevenfyeager
- Start date
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jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Yes.
White may re-identified as ungrounded, any hot color may be re-marked for a different phase, but green is always still an EGC.
White may re-identified as ungrounded, any hot color may be re-marked for a different phase, but green is always still an EGC.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
I did a no-no a few years ago. I stripped the red conductor everywhere it was exposed to use as the EGC for an isolated-ground circuit, using the green as the IG conductor.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Isn't that actually permitted?
electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
- Occupation
- Electrician
can an ungrounded be re-identified as white/grounded?
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
"Where the conditions of maintenance and supervision ensure that only qualified persons service the installation..."
See 250.119(B)
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Larger than #6, yes.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
From my experience that's typically the case when you have an isolated grounding system.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
In this case, it was the circuit for a POS system (registers, touch-pads, printers, etc.) in a restaurant.From my experience that's typically the case when you have an isolated grounding system.
- Occupation
- Licensed Electrician
I've lost track of the number of POS recpts that I've demod in old stores that have an IG tagged to a non IG recpt.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Or the opposite: an IG receptacle on a non-IG circuit.
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
My favorite was at the college I used to work at.
Back in the late 80s and early 90s someone must have heard that all computers must be on IG receptacles. Tons were installed using 12/2 MC and NM. Whoops!
It gets worse. Many were ran to sub panels that had no ground bus because all EGCs were conduit so the new cable wire EGC was put into the neutral bus. Double Whoops!!
- Status