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this is what code says:
* _* x& T3 k& s$ l* H4 m4 v0 B4-028: Identification of insulated neutral conductors up to and including No. 2 AWG2 R+ t# U' R2 R- K+ ^ \
copper or aluminum% K0 o+ [$ b, Z1 U
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
) ]0 W- S5 _7 ^! [: [ cNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to* o, u, r" P+ p/ G6 w" F, c6 {
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
$ ]3 \9 d; b, Z1 {1 d: b% {along the entire length of the conductor.9 ]. g, ~0 b1 ^- ]
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure) q ?2 J3 R8 ^
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified3 L9 S" w/ R$ D; r: F6 q c0 O6 e
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
9 c( J& D$ |, V8 [, Gidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
1 t \# U) v1 `" z5 }green) running along the insulation.- f$ J4 A- J# P
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
7 m- ` `6 _6 k4 {- T4 Wan identified conductor; however, in the case of those flexible cords where the identified conductor is
5 }; W4 s4 d* h' V/ a; pidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
0 s- C/ [( j! [9 Y(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
5 _0 R# a/ F- c) B. H- i9 B& V2 |as the identified conductor by painting or other suitable means at every point where the separate
& O7 f" y. @- Q: T9 qconductors have been rendered accessible and visible by removal of the outer covering of the cable, and+ N, s/ w3 I8 R
the painting or other suitable means of marking the identified conductor shall not be permitted to render; c8 }/ ^8 R2 R' w# N. L1 P
illegible the manufacturer’s numbering of the conductor. |
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