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this is what code says:: Z. C- k) I! M, l
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG ?9 o/ W, w3 X3 j6 A3 m+ [; Q
copper or aluminum
1 g; t8 G8 |! H5 C0 { r(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including( {; ^; G4 B$ N6 `! M3 {
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to5 }) C D6 o+ D7 O7 Q6 g- ^7 e0 F4 d
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
5 e Z" r& w0 Z; b, qalong the entire length of the conductor.9 c* _. P- U1 K; d6 Q
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure: l" m, i6 u3 k5 ?, a4 o
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
- U: ?9 p) @; j9 Kcircuit conductor of the other system, if present, shall be provided with a specific identification, and the( E% \8 E$ m ], n& H
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
1 i4 ?. v5 e1 g) `; Mgreen) running along the insulation.
; S2 a1 C9 @% e" t- M. G(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of0 y' N+ c. a& X4 S
an identified conductor; however, in the case of those flexible cords where the identified conductor is: P h& O- d/ A: E7 H
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
M8 s$ r/ H- _0 X(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked% K4 p" |; j( \8 D4 ]$ ]" D, {4 \
as the identified conductor by painting or other suitable means at every point where the separate( a, a; o/ j" v2 Q s0 k/ {! {5 f) u
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
9 E( S: u8 S9 N$ E7 Y( g6 J3 zthe painting or other suitable means of marking the identified conductor shall not be permitted to render' J( N- X1 d7 |; L
illegible the manufacturer’s numbering of the conductor. |
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