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this is what code says:
9 t7 E; i( K3 P2 S- }4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
' M# N) v5 A8 B6 V- O& `9 N% mcopper or aluminum7 G3 B7 U$ Q. Y# {. s' s
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
4 G/ @8 d$ B {: p9 U- uNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to: F! x# M }, b- H, L
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
# V* J6 m4 J+ |( ^5 w" o. Galong the entire length of the conductor.
: F; Y' P2 {$ ]- R) O: o0 b. a(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure8 n% k6 b' Z( C' F+ D: ^* }
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified6 k8 }% i: b; c+ F
circuit conductor of the other system, if present, shall be provided with a specific identification, and the0 t5 i$ L4 F* t' |
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
) D. H. ^& V4 t3 ~6 s! Ugreen) running along the insulation.
* Z, k( q2 q" c3 F3 r+ @8 I! Z K(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of1 R: I! F7 W! P# I. S, g
an identified conductor; however, in the case of those flexible cords where the identified conductor is
U1 q4 Z8 T y( X9 kidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
6 ]9 A% s; u; z2 l4 m(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked: k. l; q1 w$ ?( T8 y/ s
as the identified conductor by painting or other suitable means at every point where the separate
2 X$ u5 ^8 \* J D/ Kconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
% V+ V9 p) H# p5 P% V; j2 hthe painting or other suitable means of marking the identified conductor shall not be permitted to render( p/ H* S9 C- s0 K
illegible the manufacturer’s numbering of the conductor. |
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