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this is what code says:) t x& B/ w! n( Z
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
( b- p0 v0 a8 w7 N' Hcopper or aluminum
5 W1 o4 r: p8 ^) j9 U(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including! u2 H, W: [$ c+ R! p+ i W
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to3 s7 Z+ S( c' |9 Y# t/ \; |
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
, z9 @; n: R) K3 P: z9 ialong the entire length of the conductor.; Z1 B ~! r1 f# f( ^
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
% ~$ v' f) h! ?9 K: Band the identified circuit conductor of one system is coloured by a white or grey covering, each identified9 U- C$ H7 d D4 I% l% y* U/ h5 n- |8 @4 @
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
6 l! k X/ `5 lidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not8 b' O. ~) t, I
green) running along the insulation.
; C# C6 M) d, H+ g$ e: q$ o(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
, [: Q9 p+ p6 b% Q2 `3 B6 A3 `! {an identified conductor; however, in the case of those flexible cords where the identified conductor is5 S0 b3 |" ^" L
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.# \8 d' a- q2 r
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked' N9 m. q; g8 ?2 i0 K: t
as the identified conductor by painting or other suitable means at every point where the separate) C* V8 j# P; y( U n0 m
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
0 r$ Z/ ~4 M2 @) R$ z# ithe painting or other suitable means of marking the identified conductor shall not be permitted to render# h' p/ {2 `: h) U; }( B
illegible the manufacturer’s numbering of the conductor. |
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