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this is what code says:
& n$ h6 @2 @, q; a4-028: Identification of insulated neutral conductors up to and including No. 2 AWG1 o4 {% i/ H) `; V& N$ R
copper or aluminum0 m# a- E6 h0 R. r+ F0 G, Q6 ]6 X
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
; Y, w% _# h @- zNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to& J/ t6 q3 l1 \' R. m6 m6 X4 I
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
- c- x" V3 L/ ^9 zalong the entire length of the conductor.
6 ]# C$ a( K$ C' w; V" U(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
. g. C* ^3 p' F) I% b3 i: g: M# D, Hand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
% k# y" ?% Y0 V/ p' {) s- {circuit conductor of the other system, if present, shall be provided with a specific identification, and the
# b L- r# \/ \; i6 Jidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not! R) ]& B5 Y: O g; }) m
green) running along the insulation.
0 w8 x: [' t# P2 S# n(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
4 u+ X; D! ]9 R# s } t8 _an identified conductor; however, in the case of those flexible cords where the identified conductor is
# v8 g" S/ Q8 O0 @4 Y+ p: tidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
/ X' I* b" P* k# R, t" y(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked" B/ O& v( \: i# {) i
as the identified conductor by painting or other suitable means at every point where the separate# b* N( u% C" G$ U- x0 m' v
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and r' h; b" G, W; B8 `
the painting or other suitable means of marking the identified conductor shall not be permitted to render: S6 K8 M) k- t' r' Y
illegible the manufacturer’s numbering of the conductor. |
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