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this is what code says:6 r2 ?9 r# }5 ^$ d
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
1 N; k7 w" e* O1 J$ lcopper or aluminum1 d# G4 L4 o4 C& p3 d, D
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including) p! E5 p* ]% u9 B4 h
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to+ V3 ]; \9 a, |$ J
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes) s6 U! A& k* c' K; ~/ W
along the entire length of the conductor.
) n& r x6 E" Y4 P. K4 I- E" E(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
, d B/ n! N8 uand the identified circuit conductor of one system is coloured by a white or grey covering, each identified. }8 N% E$ w. w" S; X$ f) N
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
1 f, `1 R2 s1 c$ E" N$ D$ a) Jidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not9 x: s' V! o0 A4 n$ T
green) running along the insulation.
9 d) j- b8 a( ?9 ^0 ?% j9 c& ](3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of* L: u+ c: T) Y. H2 | n: l
an identified conductor; however, in the case of those flexible cords where the identified conductor is% H; k( l* W# ?6 M7 l/ Z
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.) P& v/ _$ `7 v5 l3 j4 P9 i
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
# T8 O4 j2 y6 \! X4 fas the identified conductor by painting or other suitable means at every point where the separate+ H, x# K7 p0 A1 I' W
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and% m" B: }2 o( o* M; M
the painting or other suitable means of marking the identified conductor shall not be permitted to render7 Z! o+ V; i$ @2 o0 \" f
illegible the manufacturer’s numbering of the conductor. |
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