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this is what code says:
" E/ P5 ?5 S% I! O# R% x8 n4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
S" _9 c! T, {9 f6 f5 ?copper or aluminum) k5 {- }3 ~% J3 M0 |2 f. ~
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including$ m) | M' d# R" A9 g/ [
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to2 F+ h( u' A+ F! s2 {
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes- i$ v" x8 }3 b
along the entire length of the conductor.
* Z' c# l' H4 m. n ](2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
( A: w, H3 V3 [* x. Tand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
0 X6 y! B* g# Z" ]circuit conductor of the other system, if present, shall be provided with a specific identification, and the0 ?' X7 Q. x$ P+ Y5 I
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
/ [2 h, k4 n( ?# igreen) running along the insulation.
0 @3 M7 Z& K+ r! `1 `(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of$ l& F- N0 Z/ j. G3 ~/ k7 F
an identified conductor; however, in the case of those flexible cords where the identified conductor is7 ]9 V, s! ]+ A
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
" i1 a5 h2 X' ^# x) D9 A(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
% t$ ]& y) n# f& _( Gas the identified conductor by painting or other suitable means at every point where the separate: V6 ^; m; {4 v, E+ |7 Y8 m
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
- u: _, j9 C" Z, y: H3 O# \# [the painting or other suitable means of marking the identified conductor shall not be permitted to render
+ ]6 w: {# ^& @. f# l+ ]& Sillegible the manufacturer’s numbering of the conductor. |
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