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this is what code says:
5 d9 a. F+ G: e8 L4-028: Identification of insulated neutral conductors up to and including No. 2 AWG+ N# K7 K2 C7 W- c
copper or aluminum) m$ `( `) j" E; @6 e ^! r
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including s: ?1 `3 T8 J: B) q& ]
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to: d8 L* h! k, K8 B5 v# Q
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes3 `6 h, `0 W/ k" f8 |' v2 W
along the entire length of the conductor.
P+ e' ~5 D. W7 ]# c8 u( j" ?7 ?- p" ] Y(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure D. F6 J, M- l
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
% N1 l1 y7 t Y1 K6 R: O. Lcircuit conductor of the other system, if present, shall be provided with a specific identification, and the
6 l5 ^! q6 B7 ~) hidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
0 }. N0 i5 K& I) {3 h' r" xgreen) running along the insulation.
5 h4 L2 B v2 e( k9 U" w/ S(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of% J' f1 P/ H9 t, [- {! ^
an identified conductor; however, in the case of those flexible cords where the identified conductor is
1 W3 c$ i' s2 P+ D/ ]identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.+ d: G, P9 P, N6 p) R
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
7 e% h* e( `7 }) X! ?2 e, {as the identified conductor by painting or other suitable means at every point where the separate
R( y1 F9 J0 s, j) ]; u% m3 aconductors have been rendered accessible and visible by removal of the outer covering of the cable, and* U) I* T. u6 g# H
the painting or other suitable means of marking the identified conductor shall not be permitted to render4 Q# Q6 n( k9 H, u. q8 M; k
illegible the manufacturer’s numbering of the conductor. |
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