Here's a photo of a panelboard at our company. It's a non-powered mock-up of how our wiring solution would be terminated at the panelboard. The application is for a large PC installation, such as in an office. Thus, the potential for harmonics, unbalanced loads, and the reason for the multiple neutrals.
<devil's advocate> Since when is anything but white or grey allowed for grounded conductors? The NEC specifies green or yellow with a green stripe for equipment grounding conductors, but no provisions are given for duel colored conductors being allowed for the grounded conductor. </devil's advocate>
Is this allowed?
(I realize that this is the new Romex with 2 noodles, but is it legal?)
-Virgil Residential/Commercial Inspector 5 Star Inspections Member IAEI
#103801 - 11/26/0209:49 PMRe: It's a non-powered mock-up
Wow, got of the subject there, sorry... Your panel is a neat job, but it gets a red sticker. Grd & neutrals on same bar; bonding neutral at sub-panel; multiple conductors terminated at neutral bar; I'm assuming this is a conduit job, as I believe the only "striped" white wre available is MTW/THW or THHN. Have you used or thought about AFC's "Super Neutral" MC cable...great for office partitions.... John
#103803 - 11/26/0209:56 PMRe: It's a non-powered mock-up
I don't see any provision in Article 200 that permits the use of colored stripes on the white wires for grounded conductors, except for the identification of grounded conductors of different systems. I don't see any problem using them except that it is not in complete compliance with the NEC. I would expect that Southwire has submitted proposals to change this in the 2005 code. don