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this is what code says:( L6 R6 w. h+ q9 D t4 g% }- t
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
& V5 g5 h- s l% {$ m; Ecopper or aluminum2 d+ a/ Y: ^' h2 Q8 [( }
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
$ v$ z9 ~6 m7 C! dNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
" u+ a; w6 e" V$ M3 ~2 K% Ksuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
9 y6 |& d: N' i. Halong the entire length of the conductor.
+ G6 ~) ~: ]# ^( ^) d7 [6 E5 w5 k(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure8 d1 ~/ f1 e; P# I! ]% i( ]
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified, w- M0 N/ D" X' V+ m& G
circuit conductor of the other system, if present, shall be provided with a specific identification, and the2 y4 m8 D1 B I
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not, @0 F+ |& F$ z% {
green) running along the insulation.
. a4 g' I) E; n4 c+ e2 k6 Q+ s(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of+ u# K* a0 G% E8 O' W
an identified conductor; however, in the case of those flexible cords where the identified conductor is
6 p" N' r) O |6 uidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.* C- q2 J" U) P7 I2 p
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked j0 V8 b3 D# j4 ]
as the identified conductor by painting or other suitable means at every point where the separate% l0 o0 g8 M2 i2 ~+ K% W r
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
" j1 J6 i2 E% [' P2 H7 I9 w& s2 H: Sthe painting or other suitable means of marking the identified conductor shall not be permitted to render" ^+ \7 u, l: p
illegible the manufacturer’s numbering of the conductor. |
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