wire color question


Old 10-07-07, 05:34 PM
Thread Starter
Join Date: Sep 2007
Posts: 35
wire color question

With a building permit, I am planning to run four 6 gauge THHN cables in 1 1/2" PVC conduit from the main entrance panel in my home to a subpanel in a detached garage. The conduit run is about 100' long. I have discovered it is cheaper to buy a 500' spool of 6 gauge wire than it is to have four separate 125' wires (white, black, red and green) cut for me at the local big box hardware store. Is it NEC legal to buy a 500' spool of black wire, cut it into 4 equal lengths of 125' and tape the ends with red, white, and green color electrical tape?
Thanks for you help.
Sponsored Links
Old 10-07-07, 05:46 PM
nap's Avatar
nap is offline
New Member
Join Date: May 2006
Location: north
Posts: 4,163
as a technicality, #6 and smaller is supposed to have the propre color of insulation for the neutral (grounded conductor) (grey or white) and the equipment ground (EGC) (green)

In my area they are not so strict as to actually require this. Typically #8 and larger I buy in black only and tape mark to the corrcet color.
Old 10-07-07, 07:24 PM
Banned. Rule And/Or Policy Violation
Join Date: Feb 2006
Location: North of Boston, MA.
Posts: 2,113
Nor have I ever had an issue with your plan. A quick call to the inspector will clear it up fast.
Old 10-07-07, 08:25 PM
Forum Topic Moderator
Join Date: Feb 2005
Location: Near Lansing, Michigan
Posts: 10,541
While it is technically against code, most inspectors don't have a problem with marking wires smaller than #4. If your subpanel is 60A or less, the ground only needs to be #10 green or bare; 65A - 100A, the ground can be #8. This may save you some cash as well.
Old 10-07-07, 09:28 PM
Join Date: Mar 2006
Location: NE Wis / Paris France{ In France for now }
Posts: 4,808
I agree with you one part Ben ,,

but some local code will allow it but IMO with smaller than #6 it should be solid color unless it have expect for switch loop which they are allowed for remarked and ditto with 2 conductors NM cable to remarked for straght 240 volt useage.

senice speaking of colour code i been changing the arrangment what i useally stock in larger wire size

now i allready order large spool [ 500' ] with common single phase colour for service entrance ditto with 3 phase service as well.

Merci, Marc
Old 10-08-07, 09:41 AM
Thread Starter
Join Date: Sep 2007
Posts: 35
Ok thanks for the help, it looks like I can do it but I will call the inspector just to be sure. Copper sure is expensive these days!!

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes