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this is what code says:" D4 d" ]% S( F; U
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG; S' C# H6 k0 }: d1 u0 V
copper or aluminum
1 P/ T* U4 `& U0 `- P(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
U+ O: m' s* I) r6 E& r7 t! s, k6 |No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
2 u0 q# z" A6 m" H2 Qsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes( t: f4 `. R& a9 H
along the entire length of the conductor.9 v0 d+ s! x6 Q! O" M+ p
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
6 H% K5 i% ?) ?3 D/ band the identified circuit conductor of one system is coloured by a white or grey covering, each identified( _+ A- ? A& Y
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
8 j) L- s4 x" Y, R9 x* v% W0 [identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not* R$ v5 {: u. d% M) T
green) running along the insulation.
7 q) k& x6 @$ c$ q( M: i(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
2 O, W& X; h4 uan identified conductor; however, in the case of those flexible cords where the identified conductor is+ |) ~1 g" o( p
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges." ]; [: I" ^' O6 b$ i/ V* O7 h6 W" K! W
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
7 ?5 C0 w8 |% u4 |3 {as the identified conductor by painting or other suitable means at every point where the separate: ]3 J% j( g6 V# {
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and; ]9 p( `) A" ?- ~
the painting or other suitable means of marking the identified conductor shall not be permitted to render- f" F* a7 d' K o% _/ r+ L* l
illegible the manufacturer’s numbering of the conductor. |
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