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this is what code says:
* d6 p( ]2 ?( S. l" b% u' h6 r4-028: Identification of insulated neutral conductors up to and including No. 2 AWG7 l. \: P1 e; E
copper or aluminum
/ \ F2 G3 o0 a6 d(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including0 t9 A$ k3 O+ H
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to& i1 R1 W- K$ ]$ R
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
3 {/ q8 L3 N5 U8 A! palong the entire length of the conductor.& y7 W2 w4 \# K5 }5 [
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure0 o5 m* H+ F9 B s
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified0 P( | [8 l# C* H" A
circuit conductor of the other system, if present, shall be provided with a specific identification, and the& d' T( }: x9 h3 q3 \: L3 b& G9 ]
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not$ N$ Y$ ]" L2 p6 g
green) running along the insulation.8 b, D9 r, b. v' `1 x
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
) i3 `1 g- R& Q4 m( w: L# L/ T/ wan identified conductor; however, in the case of those flexible cords where the identified conductor is
8 u8 z* I7 `" E2 o/ P+ [: B- H( Widentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.8 `( G# t( l% x/ g7 g" b. o$ p
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
: t& Y( h9 m( X- I# tas the identified conductor by painting or other suitable means at every point where the separate+ J- Q+ }% W! } X6 h' }% V% {
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
& {( P: R$ O' g2 Xthe painting or other suitable means of marking the identified conductor shall not be permitted to render
0 H7 ]$ }4 @* w" Rillegible the manufacturer’s numbering of the conductor. |
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