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this is what code says:
/ O( n- ^3 N5 s* [ U! M4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
/ L8 p9 R- ~# U9 d9 y( u5 }copper or aluminum
5 w; h5 k! m+ X( h8 b7 W9 X(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
8 C+ M0 W" s1 R* H$ wNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
+ }* `; O' Q4 p$ Msuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
) R( ?& t( Z. i* ~# _5 Y$ l6 Palong the entire length of the conductor.
6 s. p5 Z6 O4 b+ L(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
& D' P# m) ^. ?9 B: \and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
; j8 l, { K. _" ]circuit conductor of the other system, if present, shall be provided with a specific identification, and the
0 `; S- X- R7 U. m8 o4 M9 I+ nidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
3 Y. a" Q" H5 C) z, ggreen) running along the insulation.0 @7 ^% g/ V, J% ^% L- `- A
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
6 @3 S+ W- g3 `9 qan identified conductor; however, in the case of those flexible cords where the identified conductor is- J: Z' i* j: D( K" j3 h% H/ {$ Q% ^( W
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
# H l# M+ T3 J8 ^4 I! a(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked' P7 v" o3 _* M I R0 H
as the identified conductor by painting or other suitable means at every point where the separate
( W6 L' g) ]# uconductors have been rendered accessible and visible by removal of the outer covering of the cable, and! C6 n$ r/ v0 s4 n; c0 Z; f
the painting or other suitable means of marking the identified conductor shall not be permitted to render
; D; O% n0 K1 X4 `2 millegible the manufacturer’s numbering of the conductor. |
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