mark32
Senior Member
- Location
- Currently in NJ
I'm unsure if this is a dumb question or not. Lets say you pull two black #6's to be used as ungrounded conductors, can you tape one of them another color such as red?
It's not, and you can.I'm unsure if this is a dumb question or not. Lets say you pull two black #6's to be used as ungrounded conductors, can you tape one of them another color such as red?
I'm unsure if this is a dumb question or not. Lets say you pull two black #6's to be used as ungrounded conductors, can you tape one of them another color such as red?
Red and orange is not the best choice because it is used for other things. And white and green are no no . Lets see how about pink :grin::grin:
How would the information in NFPA 79 apply to a building wiring system that is covered by NFPA 70?Not sure
nfpa 79
Black = ungrounded ac/dc power conductor
Red = ungrounded ac control conductor
Blue = ungrounded dc control conductor
NFPA 79 Scope.
1.1* Scope. 1.1.1 The provisions of this standard shall apply to the electrical/electronic equipment, apparatus, or systems of industrial machines operating from a nominal voltage of 600 volts or less, and commencing at the point of connection of the supply to the electrical equipment of the machine. 1.1.2 This standard shall not include the additional requirements for machines intended for use in hazardous (classified) locations.
OK, let me simplify this hypothetical question. You want to feed some piece of equipment in a residential dwelling that needs 240v. You install a raceway and then realize you only have the appropriately sized wires in black, white (if needed) and green (If needed). Instead of running out to the store, you pull in two lengths of black (#6) and wrap some red tape around the ends of one run. This, that has been stated earlier, would be code compliant.
OK, let me simplify this hypothetical question. You want to feed some piece of equipment in a residential dwelling that needs 240v. You install a raceway and then realize you only have the appropriately sized wires in black, white (if needed) and green (If needed). Instead of running out to the store, you pull in two lengths of black (#6) and wrap some red tape around the ends of one run. This, that has been stated earlier, would be code compliant.
your compliant to use red on the ungrounded conductors. There would only be an issue if you were re-identifying the white (or a black #6 or smaller to white) not that the world would stop spinning if you did.
OK, let me simplify this hypothetical question. You want to feed some piece of equipment in a residential dwelling that needs 240v. You install a raceway and then realize you only have the appropriately sized wires in black, white (if needed) and green (If needed). Instead of running out to the store, you pull in two lengths of black (#6) and wrap some red tape around the ends of one run. This, that has been stated earlier, would be code compliant.
As per your explanation, 200.7(C)(1)-(3) would not permit this type of identification.
The world would only slow down for a fraction of a second, probably throwing millions of people into outer space.That is okay, as the population is getting out of control anyway...![]()
As per your explanation, 200.7(C)(1)-(3) would not permit this type of identification.
The world would only slow down for a fraction of a second, probably throwing millions of people into outer space.That is okay, as the population is getting out of control anyway...![]()
... simplify this hypothetical question.
... 240v.
How would the information in NFPA 79 apply to a building wiring system that is covered by NFPA 70?
Lets say you pull two black #6's to be used as ungrounded conductors, can you tape one of them another color such as red?
Thanks for the replies. I wonder what makes red a poor choice to color an ungrounded conductor? Please explain.
Thanks for the comments Larry.
You could pull the two #6 blacks and not mark them at all if you wish, especially for a 2 wire 240 volt AC circuit. Why would you need to know which one is which? If they get swapped the load will still work the same.
I just never liked to use colors that are used to identify other things , red is used in different places in code. Read these for other colors , 110.15 orange, 504.80 light blue , 517.160 (5) orange, brown .