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this is what code says:9 U8 F/ K% t+ l1 c
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG4 f" Y+ O/ o' Y7 Z$ N2 @# X& z. {/ w7 f
copper or aluminum
: q0 }2 ^7 z7 N' A(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
! X, R2 m0 Z. w+ bNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
6 K6 s+ P: K5 C) \; fsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes# c! v+ f- D' r3 b E' h% t
along the entire length of the conductor." T: m4 Z/ D" M8 m% K) I
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure& _7 a% O8 B( M& V9 o
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
1 b" U$ ]% c) c* n( ~circuit conductor of the other system, if present, shall be provided with a specific identification, and the9 c) e$ g( _- |$ I8 H
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not, k) L+ R- {% m* r1 K
green) running along the insulation.
$ ^3 [- c! p) d(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of. j" W( U7 V0 @3 x6 f+ z
an identified conductor; however, in the case of those flexible cords where the identified conductor is$ w, x* o/ S. {" J! O( R- T
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges." [; { U1 Z8 Q: X: Y, a7 [6 K
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
' Z2 {! P: ~7 D6 ?as the identified conductor by painting or other suitable means at every point where the separate
* f. q$ Q% B7 q( Wconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
0 k( S6 q. Q; l) I+ a1 wthe painting or other suitable means of marking the identified conductor shall not be permitted to render
7 b/ P* h% x% [5 n* d0 Fillegible the manufacturer’s numbering of the conductor. |
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