hartley590
New member
is it legal to phase black wire with colored phase tape inside elec. power panel?
phaseing wire
- Thread starter hartley590
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allenwayne
Senior Member
Re: phaseing wire
Why phase it unless it is a high led (orange)
ungrounded conductor is this the application?
Why phase it unless it is a high led (orange)
ungrounded conductor is this the application?
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Re: phaseing wire
The simple answer to your question is yes you may use phasing tape on black conductors to re-identify them. Grounded conductors shall be identified in accordance with 200.6, Equipment Grounding Conductors in accordance with 250.119. Ungrounded conductors are permitted to all be black. Phasing identification may not be required at all unless it falls under 215.12(C).
The simple answer to your question is yes you may use phasing tape on black conductors to re-identify them. Grounded conductors shall be identified in accordance with 200.6, Equipment Grounding Conductors in accordance with 250.119. Ungrounded conductors are permitted to all be black. Phasing identification may not be required at all unless it falls under 215.12(C).
Re: phaseing wire
However, if you have two 2-wire circuits in the same box downstream of a panel then the hot lead for the second circuit should be a different color so that it is obvious that 2 circuit breakers need to be turned off.
Color coding for circuit number is also superior in some ways. That is one reason why telephone cables use color coding instead of numbers on the wires. If you have ever had to sort out 2 dozen industrial control wires that are all blue and the only difference between them is a factory printed wire number you know exactly what I mean. In a control cable where all the wires have the same color and factory printed numbers finding a particular wire is very SLOW.
However, if you have two 2-wire circuits in the same box downstream of a panel then the hot lead for the second circuit should be a different color so that it is obvious that 2 circuit breakers need to be turned off.
Color coding for circuit number is also superior in some ways. That is one reason why telephone cables use color coding instead of numbers on the wires. If you have ever had to sort out 2 dozen industrial control wires that are all blue and the only difference between them is a factory printed wire number you know exactly what I mean. In a control cable where all the wires have the same color and factory printed numbers finding a particular wire is very SLOW.
bphgravity
Senior Member
- Location
- Florida
Re: phaseing wire
I think it was our Chief Moderator that pointed out the change to 210.5(C) for the 2005 NEC no longer includes the requirement to identify by phase. You will now only be required to identify by system. I find that odd.
I think it was our Chief Moderator that pointed out the change to 210.5(C) for the 2005 NEC no longer includes the requirement to identify by phase. You will now only be required to identify by system. I find that odd.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Re: phaseing wire
"is it legal to phase black wire with colored phase tape inside elec. power panel?"
For ungrounded conductors yes.
For the grounded neutral and equipment grounding bonding conductor, maybe. The later 2 can only be redentifed if 4 AWG and larger. See 200.6 and 250.119
"is it legal to phase black wire with colored phase tape inside elec. power panel?"
For ungrounded conductors yes.
For the grounded neutral and equipment grounding bonding conductor, maybe. The later 2 can only be redentifed if 4 AWG and larger. See 200.6 and 250.119
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Re: phaseing wire
This is a good idea but it's not required by the NEC. Two wire cables containing only black and white conductors can occupy the same box even if they're from different circuits and would not require any further identification.
allenwayne
Senior Member
Re: phaseing wire
Some one once showed me a way of using a tape ruler to identify #`s in a 3 phase system and associated colors but it has been so long I`ll have to think hard as to what it was
Some one once showed me a way of using a tape ruler to identify #`s in a 3 phase system and associated colors but it has been so long I`ll have to think hard as to what it was
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Re: phaseing wire
How about this one. Any circuit number divisible by 6 is the C phase and so is the circuit number before it. For example: Circuit #36/6=6 so 36 is on the C phase as is the number before it 35.
How about this one. Any circuit number divisible by 6 is the C phase and so is the circuit number before it. For example: Circuit #36/6=6 so 36 is on the C phase as is the number before it 35.
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
Re: phaseing wire
I don't think all panels are numbered the same.
Some have odd on left and even on right and some have the numbers in secquance down the left then back to top then down the right. Then there are those that let you number it. I had one that someone numbered it where 11 would mean phase 1 circuit 1 and 21 would mean phase 2 circuit 1. Must have worked in hotels all his life? :roll:
I don't think all panels are numbered the same.
Some have odd on left and even on right and some have the numbers in secquance down the left then back to top then down the right. Then there are those that let you number it. I had one that someone numbered it where 11 would mean phase 1 circuit 1 and 21 would mean phase 2 circuit 1. Must have worked in hotels all his life? :roll:
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Re: phaseing wire
allenwayne
Senior Member
Re: phaseing wire
That`s the one thanks i was tossing and turning trying to remember
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