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this is what code says:
5 A6 R6 I' p% F, b! ^0 {1 i3 C: p4-028: Identification of insulated neutral conductors up to and including No. 2 AWG) S4 H0 L" A' M4 `5 ~" n% I4 s
copper or aluminum
) f8 x; L) k) b$ i6 H$ L0 V, A(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
* ~# F' E" B$ t$ R; i* mNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
/ d( [" g5 b* M qsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
. ?+ P' H0 O+ d" {1 Walong the entire length of the conductor.4 ^* u7 c, W! }8 K' d2 i6 T
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure( [, I: I$ Q2 T' n+ c
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
) q3 ^! J: `. j/ q. `- \/ P3 ]circuit conductor of the other system, if present, shall be provided with a specific identification, and the+ s, ^4 G1 `0 q2 [# H0 a* V5 j
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
& \4 u) I. }# `0 j1 @; E0 Cgreen) running along the insulation.* o* I) W* J% v
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
5 X! F, K. }! f% G8 U6 B! V5 Yan identified conductor; however, in the case of those flexible cords where the identified conductor is
' b; [3 D0 S/ d) x. tidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
) x, e2 m! V) ~(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked, [1 ?0 a$ j0 I
as the identified conductor by painting or other suitable means at every point where the separate
\9 O1 a8 h, b1 f0 ^5 _conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
. @0 ]4 W( }) d$ x. }9 zthe painting or other suitable means of marking the identified conductor shall not be permitted to render% s$ d, r1 k8 B6 m5 g9 u
illegible the manufacturer’s numbering of the conductor. |
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