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this is what code says:
+ p4 b0 D( _1 [% C& h+ n: b4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
$ P4 D. d$ _1 `& D6 [+ S% Scopper or aluminum
2 f- X: h3 y/ ]4 w- ](1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including/ T9 n \6 }6 E/ V
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to: n2 F5 Q7 ?+ W( A# P, ^
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
8 `; [( ~" }6 E i$ I+ Kalong the entire length of the conductor.- C! t; Q% I4 C6 \5 `: c9 H: o. j
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure' f6 O2 M; T- j9 l: I
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified- }0 H" E7 M1 [5 M3 [
circuit conductor of the other system, if present, shall be provided with a specific identification, and the2 D) ~+ \* X. x6 N& Q; l
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not" P0 N: @! u+ n) V( O) j' ]
green) running along the insulation.5 p9 P' S: {1 K% d
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
; D5 A8 n" @; \4 Ian identified conductor; however, in the case of those flexible cords where the identified conductor is ~! [, b( w2 L4 g
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges. t1 ~) M9 i4 R* v0 F
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked, i; A$ r; {. R6 C7 Y6 M) ?
as the identified conductor by painting or other suitable means at every point where the separate
0 z" S$ G7 `; E* {3 N' Hconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
" u4 A9 Z: {- Y' x% Q7 z! jthe painting or other suitable means of marking the identified conductor shall not be permitted to render
% c+ D& `* H, V C {illegible the manufacturer’s numbering of the conductor. |
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