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this is what code says:9 O' K) M; z7 p0 O
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG+ s& s5 L# b# @" Q
copper or aluminum
* D6 d1 C9 I; U(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
! |( f8 u$ ^. y: DNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
* j7 E" k. q# k( q G; Z9 ksuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes2 J. K' d/ u2 R% D$ [
along the entire length of the conductor.. A. Q+ y) w# X0 Q# E; U2 E! {
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure0 i2 u6 O! Q8 b; a0 u
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
8 S7 H+ F4 j \ ncircuit conductor of the other system, if present, shall be provided with a specific identification, and the
0 v5 ]& T$ ?& j# g# I6 s2 tidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not+ q. V4 n$ B5 i' x
green) running along the insulation.: w* N+ i# n9 S; h
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
" P9 D' ^. {+ P; F8 s6 San identified conductor; however, in the case of those flexible cords where the identified conductor is
; K/ {4 B. `: W+ a ~identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
- F- @+ q p$ i+ N' k3 P(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked, A/ m: U) r. ~* C4 V) {" |) K
as the identified conductor by painting or other suitable means at every point where the separate7 l' [- I+ ~* o6 ~1 w4 e, R6 C
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
5 N% E+ \, b6 D7 e+ X/ jthe painting or other suitable means of marking the identified conductor shall not be permitted to render! V7 y6 n9 k/ G
illegible the manufacturer’s numbering of the conductor. |
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