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this is what code says:3 J! ?5 B$ E0 r1 R
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
8 C, O4 x# X% i" ]+ h% g7 x4 ^copper or aluminum( a8 p5 O$ j% k$ Z. g
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
/ N I- H, C7 s9 ?No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to2 S; k1 W0 U7 T5 K$ g
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes+ @! A7 C6 i. `! p6 p" w6 m
along the entire length of the conductor.) F4 z3 p% a: M; H
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure) W% F+ @& m9 O
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
$ a8 `+ n" y9 Q* `6 G/ S) W7 ucircuit conductor of the other system, if present, shall be provided with a specific identification, and the. C# a& a9 x( u, D" P9 b
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not5 M+ S# Y4 v/ o9 |7 O
green) running along the insulation.
" w7 q0 a' b1 Z- L: [1 c(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of' x% m: `- w; [2 n% P. f
an identified conductor; however, in the case of those flexible cords where the identified conductor is
8 D5 x5 X4 m1 [+ tidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
* u R4 q- E% F* v& n9 W(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked: z$ G- b |" E( |+ L
as the identified conductor by painting or other suitable means at every point where the separate
$ l/ L6 t" K+ c9 H: p. T$ d% N+ Uconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
2 p& Z, E1 ]- u3 R" A1 C6 qthe painting or other suitable means of marking the identified conductor shall not be permitted to render
* b' l. X' f8 Y$ i5 b# R* A- pillegible the manufacturer’s numbering of the conductor. |
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