The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Would ELV branch circuits be a good idea?
by LongRunner
Today at 07:42 AM
100% breakers?
by Texas_Ranger
Today at 06:13 AM
Forum Software Upgrade coming soon...
by Trumpy
01/14/17 07:11 PM
Faricating Guards out if Lexan?
by Trumpy
01/14/17 07:09 PM
Dangerous DIY Advice
by Potseal
01/12/17 09:52 AM
New in the Gallery:
Desk-mounted "power-board"
Shout Box

Top Posters (30 Days)
HotLine1 16
gfretwell 11
ghost307 10
sparkyinak 9
Webmaster 8
Who's Online
2 registered (gfretwell, frank), 365 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#94867 - 08/16/05 04:04 PM Panel identification
boggerbutt2454 Offline
Member

Registered: 02/27/05
Posts: 44
Loc: Concord NC USA
I had inspector tell me he wants a label on the front of the panel for 120/208 that say's
A phase black
B phase red
C phase blue
for 277/480
A phase brown
B phase orange
C phase yellow
He said this is a new code but the reference he gave didn't state this.

Is this something new? I always thought the color code was sort of a rule of thumb that all electricians knew the color code although I have seen some that use black, red, blue for everything.

[This message has been edited by boggerbutt2454 (edited 08-16-2005).]

Top
2014 / 2011 NEC & Related Books and Study Guides
#94868 - 08/16/05 04:33 PM Re: Panel identification
Larry Fine Offline
Member

Registered: 02/18/05
Posts: 684
Loc: Richmond, VA
Except for white, green, and gray, coloring is purely arbitrary. If anyone knows differently, please advise.

[This message has been edited by Larry Fine (edited 08-16-2005).]
_________________________
Larry Fine
Fine Electric Co.
fineelectricco.com

Top
#94869 - 08/16/05 04:44 PM Re: Panel identification
iwire Offline
Moderator

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
The colors you choose are up to you, the NEC would allow purple, pink and brown for 480 volt.

However in some instances the NEC does require that the colors you choose to be listed at the panel.

In the 2002 NEC it applied only to multiwire branch circuits.

 Quote:
210.4 Multiwire Branch Circuits.(D) Identification of Ungrounded Conductors. Where more than one nominal voltage system exists in a building, each ungrounded conductor of a multiwire branch circuit, where accessible, shall be identified by phase and system. This means of identification shall be permitted to be by separate color coding, marking tape, tagging, or other approved means and shall be permanently posted at each branch-circuit panelboard.


Now in the 2005 it applies to all circuits in some buildings.

Look at 2005 - 210.5(C)
_________________________
Bob Badger
Construction & Maintenance Electrician
Massachusetts

Top
#94870 - 08/16/05 06:54 PM Re: Panel identification
resqcapt19 Offline
Member

Registered: 11/10/00
Posts: 2209
Loc: IL
But in the 2005 code there is no requirement that each phase have a different color...only each system.
Don
_________________________
Don(resqcapt19)

Top
#94871 - 08/16/05 08:46 PM Re: Panel identification
gfretwell Online   content


Member

Registered: 07/20/04
Posts: 9058
Loc: Estero,Fl,usa
You do still have this one;
110.15 High-Leg Marking.
On a 4-wire, delta-connected system where the midpoint of one phase winding is grounded to supply lighting and similar loads, the conductor or busbar having the higher phase voltage to ground shall be durably and permanently marked by an outer finish that is orange in color or by other effective means. Such identification shall be placed at each point on the system where a connection is made if the grounded conductor is also present.
_________________________
Greg Fretwell

Top
#94872 - 08/16/05 08:53 PM Re: Panel identification
Larry Fine Offline
Member

Registered: 02/18/05
Posts: 684
Loc: Richmond, VA
Absolutely right, GFret. My bad.
_________________________
Larry Fine
Fine Electric Co.
fineelectricco.com

Top
#94873 - 08/16/05 10:43 PM Re: Panel identification
Rhino Offline
Member

Registered: 06/28/04
Posts: 24
Loc: San Diego,California,USA
A lot of the fine points of our trade and codes hilighted here!
Really kind of a treat!
Thanks to all that contribute

Top
#94874 - 08/17/05 03:23 PM Re: Panel identification
boggerbutt2454 Offline
Member

Registered: 02/27/05
Posts: 44
Loc: Concord NC USA
Thanks iwire, I must have read over 210.4 a couple of times and missed it each time. Like they say if it had been a snake it would have bit me.

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals