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this is what code says:
: Y. r# |' V3 L9 B4-028: Identification of insulated neutral conductors up to and including No. 2 AWG' o" }( E& Y3 [9 R: E
copper or aluminum" I. Q5 U+ f! f& t6 e t9 j& ?
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
, F0 p5 `- t. I% C; oNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
0 k* h) {+ f. I0 Nsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
. o* Q. W- L% balong the entire length of the conductor.
) V2 f) C' t5 [- |$ ](2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure3 T* Y; w! F* f: ~$ q6 A
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
; z T7 S/ ]6 L$ z% |+ scircuit conductor of the other system, if present, shall be provided with a specific identification, and the
% ~- i3 p: [+ Y' M+ D _( s( C2 z+ z" eidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not" X# I* x2 J3 s) Q
green) running along the insulation.
D; | v6 d# y2 M(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of! H& p- m# j. V Y. D
an identified conductor; however, in the case of those flexible cords where the identified conductor is
5 z/ x4 p2 `& f8 f, uidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.; f) b6 f0 M$ x( b2 I4 b
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked6 y) j- R2 ?" y
as the identified conductor by painting or other suitable means at every point where the separate
; f% ]2 N# Y) ?$ m; `conductors have been rendered accessible and visible by removal of the outer covering of the cable, and# C+ l% Z6 V6 h r' f
the painting or other suitable means of marking the identified conductor shall not be permitted to render: Z2 ]( b1 q5 R7 t% d: z; {7 `
illegible the manufacturer’s numbering of the conductor. |
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