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this is what code says:- a2 D/ u5 E# k. \9 Q
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG9 D) f* f z! P2 D0 w7 V
copper or aluminum/ B _- _- ^8 Y
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including" V; Y. I1 {' Z" J" N
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to2 |2 I' ]8 o" V
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes5 C5 c$ Y8 s- n3 b5 A
along the entire length of the conductor.
$ s: N7 ~ \1 o4 K(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
: m( ~" L0 K6 K/ \and the identified circuit conductor of one system is coloured by a white or grey covering, each identified# @5 g9 W4 O( s- {" @" n" {
circuit conductor of the other system, if present, shall be provided with a specific identification, and the" C, |6 {: B3 [, B8 z
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
5 [9 r) \, z! P Ugreen) running along the insulation.
! `3 d5 T# b6 N' f$ a(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of6 Q! j! T0 P1 G6 D7 Z* A
an identified conductor; however, in the case of those flexible cords where the identified conductor is
. b8 \5 P/ ?, o% Pidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.0 B$ P+ r( |2 D* u/ r$ d
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked- n/ [/ r5 |" S- o+ d- R7 A& W: X: Y, G
as the identified conductor by painting or other suitable means at every point where the separate
) B* V9 g& D3 R9 D& iconductors have been rendered accessible and visible by removal of the outer covering of the cable, and4 H# r% \4 t2 U9 E: I r( y
the painting or other suitable means of marking the identified conductor shall not be permitted to render9 _/ n8 V+ K+ @' ?6 n% ?9 N
illegible the manufacturer’s numbering of the conductor. |
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