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this is what code says:4 ~% b% Z' ~# U" l$ \" O0 E- [% H$ n; ]
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
* C" X* v5 E3 W9 U* Y0 lcopper or aluminum, t+ q. ^; k, f. J2 M( x
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
6 i" h: P% P, m* d% VNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to, V% d6 D8 I% N6 Y3 G
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes' t) G4 U. |! r1 @
along the entire length of the conductor." [; W0 f0 I' t- \% M9 P7 y. y
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure3 H! l8 K8 I5 P) _+ u8 Z: Q; R. o
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
) I9 u( U/ M$ e' ~0 @9 Y, dcircuit conductor of the other system, if present, shall be provided with a specific identification, and the
+ D4 X+ k8 `1 z8 K. V4 uidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
' _+ `+ h& j4 a" l/ k+ c8 b. bgreen) running along the insulation.+ I& @+ G$ l9 x3 u5 _5 A
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of, _$ K8 c/ O2 b, w' N$ S. _
an identified conductor; however, in the case of those flexible cords where the identified conductor is
/ {% _+ q/ g! e$ y' _% w) U" p* |identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.* Y/ y# c" U& \4 q- r7 T) B4 b
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
4 T; n8 L+ I) b- L( l* ^/ w. xas the identified conductor by painting or other suitable means at every point where the separate
* @& _1 n" h3 @8 g' u' Yconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
v6 y) H* B' D, |5 |7 \the painting or other suitable means of marking the identified conductor shall not be permitted to render, u8 v5 J6 B; E: R+ N
illegible the manufacturer’s numbering of the conductor. |
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