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this is what code says:
9 P1 W) _" X/ n& i4-028: Identification of insulated neutral conductors up to and including No. 2 AWG! E/ ^$ _" y) ?- W K8 P+ F
copper or aluminum- p# i$ U0 q k- a: L1 C5 N
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
9 Z( Z6 g& ?1 v% E; A: }" INo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to/ Q4 Q2 m* |; U2 z) ?8 \
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
# U$ m9 a: X# ^' F2 halong the entire length of the conductor.& f) p% {5 s2 f
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure; V. \7 k: J2 @
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
$ u" f! {. o" |0 D# ]( b+ ~circuit conductor of the other system, if present, shall be provided with a specific identification, and the l Z3 N, _) |1 a& j7 s
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not* c! U0 w3 Y% `3 ]5 n& j0 E
green) running along the insulation." S* f6 W5 T: ~3 A3 u+ p( u* F. o
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
9 M4 a. ?- X# q5 X( X: C$ O& |2 v3 Nan identified conductor; however, in the case of those flexible cords where the identified conductor is4 Z5 p% ]7 K+ X9 b# e& v
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges., ~+ K4 \& i9 j/ q
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
+ [6 z' S" W6 Cas the identified conductor by painting or other suitable means at every point where the separate
$ s# T+ M* s3 Q3 ^conductors have been rendered accessible and visible by removal of the outer covering of the cable, and) O) S6 m" B: V. e$ Y
the painting or other suitable means of marking the identified conductor shall not be permitted to render
9 T7 \4 s9 o6 o9 i7 _3 Villegible the manufacturer’s numbering of the conductor. |
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