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this is what code says:
% ?3 s a, h3 Q7 a0 t4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
2 g; ^% l* {# Dcopper or aluminum0 x1 w9 O" K$ O$ |" t* R- ]' K
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
5 w" z: {& ?3 U5 {4 Q: v) Z0 MNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to8 G4 @; O, c# Z$ G& i, `
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
0 a& t/ S: `+ [# g& g0 m! C* `along the entire length of the conductor.
( _6 z+ e8 K9 @2 H! T5 k(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
E2 j! C; s. g& K) v$ t8 \- jand the identified circuit conductor of one system is coloured by a white or grey covering, each identified4 b+ W! H( P( F8 X( }
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
) X: T% q. n; Cidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
7 c( e4 ~1 v2 n8 M7 Lgreen) running along the insulation." ~6 `( W+ d& u) a! o
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of/ ^' Y/ z% Z& q! g, e) M
an identified conductor; however, in the case of those flexible cords where the identified conductor is, L: j$ I3 r3 t3 t
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges./ [4 K( y4 |' c8 w7 F2 d5 p5 O2 N
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
% k1 W3 F& V [as the identified conductor by painting or other suitable means at every point where the separate" Z# b) D/ l# o V0 R! [
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and' F6 ?! Z7 ~; `& V
the painting or other suitable means of marking the identified conductor shall not be permitted to render
3 l: e6 }- C @4 a% v3 dillegible the manufacturer’s numbering of the conductor. |
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