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this is what code says:% R+ K( T- O2 L! D
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG3 M. x5 O6 r+ W% F6 h
copper or aluminum
5 L0 e9 z" m5 ~2 }, f(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
3 D. b* L$ P+ o0 p: T; ANo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to! ?( P' q4 q/ |, m
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
9 Q8 ~4 ?5 J$ ?along the entire length of the conductor.! R. n0 c5 s1 u$ U/ k
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
2 M+ E) [) h; l6 Y5 v( d* i- b5 }' Vand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
7 d$ a& V# V d5 }! Zcircuit conductor of the other system, if present, shall be provided with a specific identification, and the( s' a% T, ^0 N
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not4 y, Q5 `- }* H- {+ X% u
green) running along the insulation.: I6 c2 n! [; ]/ E3 Z
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
- J* G% H. D; d6 h) S0 z# o" ?2 S5 van identified conductor; however, in the case of those flexible cords where the identified conductor is
* B: x6 l, _, e& kidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
2 i, ^+ w4 J6 u' c, P0 [- N7 L(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
: W5 K. |, o. u. t5 K9 xas the identified conductor by painting or other suitable means at every point where the separate% M/ ^! z5 i8 I" G2 A* }1 h& Y
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
2 |, C" F. h3 k F' R* T6 ^7 I, qthe painting or other suitable means of marking the identified conductor shall not be permitted to render7 M3 ~. M& m# ?7 F# ]( {7 V
illegible the manufacturer’s numbering of the conductor. |
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