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this is what code says:
+ _. F5 ]1 K; y! s% r) {+ y8 K3 i4-028: Identification of insulated neutral conductors up to and including No. 2 AWG: N$ I5 h2 {/ N, f; g& K& h4 Z
copper or aluminum
& m8 O* T M# `8 g i* T(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including' d: V9 R7 Z, R I* @8 M
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
) n+ P9 ~/ X$ Y, c2 W5 {+ K1 e/ t; Hsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes' M1 ~" N6 z' M5 R* I6 p
along the entire length of the conductor.. |) \# z; s4 c1 s+ r4 g/ v
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
J: x( E. c* d- \- Oand the identified circuit conductor of one system is coloured by a white or grey covering, each identified& D1 h6 f# h6 I6 h6 j% S3 I& t
circuit conductor of the other system, if present, shall be provided with a specific identification, and the E8 n1 J6 [% X0 }& h, T. |: @8 M1 s, R
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not2 c9 s' ]" V0 k! \! C
green) running along the insulation.7 E. s. t, E/ \9 z
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
9 I1 z5 I) c8 \3 u7 g3 x* jan identified conductor; however, in the case of those flexible cords where the identified conductor is
4 ?7 d* Q( ~5 \+ E1 {identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.( s9 l. K2 o( q0 j
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
7 }0 ` M. P6 A; B9 L6 g$ yas the identified conductor by painting or other suitable means at every point where the separate' R7 x, z6 m& _; O" s: x5 x
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
) N/ e7 _( g9 r; ^4 P! y# K5 H1 athe painting or other suitable means of marking the identified conductor shall not be permitted to render5 J. p2 q) ?3 z3 k; d
illegible the manufacturer’s numbering of the conductor. |
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