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this is what code says:
5 d2 v: \! y! Q; h5 \& T: O4-028: Identification of insulated neutral conductors up to and including No. 2 AWG) M7 ]* J# M7 [9 r# ^* k! m( V
copper or aluminum0 }2 q( t0 S5 M% M% S" h+ Y5 K
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
* ?& J3 }% p$ o) k3 v" nNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
3 ~4 {: l, G$ w6 u4 x S# ~- }4 Fsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
7 {: P8 ]3 r" n' `+ o. x1 @along the entire length of the conductor.. y8 s$ o8 `" L! Q' a* x- |
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
- M9 v; f, g+ G: X' l+ [8 ^and the identified circuit conductor of one system is coloured by a white or grey covering, each identified2 f: l/ _& j5 ~. H6 y* r' o$ R
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
5 j( d( A/ U! ]6 Z4 W$ y5 u( Aidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not+ `+ S: D* E, [5 I$ u' T
green) running along the insulation.
$ L, _: @) L+ T% b: s(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
/ d$ j; L+ [/ Gan identified conductor; however, in the case of those flexible cords where the identified conductor is' [# k9 ]7 y, D# Z3 v- o! p2 B( _2 B
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
. v, e! y5 @2 [) D# N6 ?(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked+ ]" e5 `: R g2 P& i3 I
as the identified conductor by painting or other suitable means at every point where the separate
) U* t7 \2 M. Y+ c5 sconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
/ e0 X4 F* O4 Kthe painting or other suitable means of marking the identified conductor shall not be permitted to render
& e" }7 T7 h6 r0 j% Y( A/ Aillegible the manufacturer’s numbering of the conductor. |
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