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#46633 - 12/29/04 12:01 AM 3 Phase Color Code  
new electrician  Offline
Junior Member
Joined: Dec 2004
Posts: 1
Could someone please explain when to use brown, orange, yellow and blue,red, black? Orange is supposed to be for the wild leg, correct? I mostly do residential but I am getting into 3 phase. Where does the wild leg come in and if a phase is orange does that mean it is a wild leg? Please help.


Work Gear for Electricians and the Trades

#46634 - 12/29/04 12:31 AM Re: 3 Phase Color Code  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...


#46635 - 12/29/04 09:28 AM Re: 3 Phase Color Code  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
After you check out all the threads keep this in mind ... we (the electricians) invented BK/RD/BL, not the NEC. Nothing in the NEC says you can't use pink, purple and mauve.
Yes, the orange is mandated for a hi leg.


#46636 - 12/29/04 10:30 AM Re: 3 Phase Color Code  
CharlieE  Offline
Member
Joined: Apr 2004
Posts: 200
Indianapolis
Actually Steve, almost any color may be used for the high Ø. The verbiage says “orange in color or by other effective means”, the other effective means may be purple, blue, red, or almost any other color as long as it’s the same throughout the plant. [Linked Image]

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Charlie Eldridge, Indianapolis, Utility Power Guy


Charlie Eldridge, Indianapolis Utility Power Guy

#46637 - 12/29/04 01:01 PM Re: 3 Phase Color Code  
JBD  Offline
Member
Joined: Jul 2001
Posts: 599
WI, USA
If there is a high leg it must be "orange".
But, orange can be used for any phase if a high leg is not present.

For the most part (yes, isolated and hospital systems are special) the only colors with restricted uses are green and white. I am not sure if grey is now restricted to grounded conductors.


#46638 - 12/29/04 01:49 PM Re: 3 Phase Color Code  
Roger  Offline
Member
Joined: May 2002
Posts: 1,716
N.C.
JBD, look at Charlies post, his quote is from article 230.56, it is also in 215.8 but with a few more words, “orange in color or by tagging or other effective means".

Grey is now reserved for a grounded conductor.

Roger


#46639 - 12/29/04 02:43 PM Re: 3 Phase Color Code  
CharlieE  Offline
Member
Joined: Apr 2004
Posts: 200
Indianapolis
A word of caution. Gray was used as a phase conductor until this cycle, “natural gray” was reserved for the grounded conductor. Just because it is gray doesn’t automatically mean that it is a grounded conductor and it is at ground potential.

Along those same lines, red has been used in this area for the high Ø in a lot of buildings. Additionally, other colors may be used for that particular identification.

The bottom line for both of these statements, “don’t assume!" Use the proper testing procedures along with the lock out, tag out procedures. Remember, go home in the same shape that you went to work in so your kids will recognize you. [Linked Image]

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Charlie Eldridge, Indianapolis, Utility Power Guy

[This message has been edited by CharlieE (edited 12-29-2004).]


Charlie Eldridge, Indianapolis Utility Power Guy

#46640 - 12/29/04 06:18 PM Re: 3 Phase Color Code  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
As per 230.56 ... I stand corrected


#46641 - 12/30/04 04:48 AM Re: 3 Phase Color Code  
e57  Offline
Member
Joined: May 2003
Posts: 2,876
S.F.,CA USA
As Charlie mentioned, ya gotta be wary of color codes.... San Fran' CA high legs are Purple, in direct contradiction to NEC. But I often find RED "B", and BLUE "Hi-C"(Which seemed to live a short life in the 60's), and of course ORANGE from "Out-of-towners", and PURPLE. On occasion all of the above. So every 3 phase panel to me is in question, and gets the meter. Then it gets the giant magic marker on the panel cover, with whatever leg is high in a big triangle. Lets me know I've been there....


Mark Heller
"Well - I oughta....." -Jackie Gleason

#46642 - 12/30/04 07:55 AM Re: 3 Phase Color Code  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,260
Fullerton, CA USA
e57
Where can I get a copy of the San Francisco Code? I've heard so many claims about their "special" requirements that I'd really like to see how they think they comply with the State's requirements.

Try this link: http://www.bsc.ca.gov/proc_rsltn/pr_proc_amnd.html


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