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this is what code says:8 D/ X3 d& `; ~" u. n
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG2 _7 L% r9 q7 q0 ~
copper or aluminum. g& j6 E, F9 F
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
" k3 j. L( ^6 q. r; WNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to2 G6 X3 r2 r% n* r2 o9 D
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
) w7 P) {2 G1 `4 B) ialong the entire length of the conductor.
" P8 U1 I3 G' F(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
; I+ \* _! t+ P2 S. y/ J# Gand the identified circuit conductor of one system is coloured by a white or grey covering, each identified. ]" _" r' x& d: u# i( i8 j
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
W1 F3 u& k8 `, qidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not6 r# G" s6 \- u# }' H
green) running along the insulation.7 o" M; Y2 y; Y" _, Z
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
& A# A( R% V. r: a* w! [7 x( j% Yan identified conductor; however, in the case of those flexible cords where the identified conductor is
) B/ V) l; F% D! M- Y0 G/ `identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
4 g* n; s, [+ {; c(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked4 _6 w7 G# d3 r7 a) l
as the identified conductor by painting or other suitable means at every point where the separate
9 I" f* E% d0 r% z8 h3 @conductors have been rendered accessible and visible by removal of the outer covering of the cable, and" ?$ {" |* w" t
the painting or other suitable means of marking the identified conductor shall not be permitted to render& b7 ]2 x4 K/ J5 E6 z6 A, q. H8 i
illegible the manufacturer’s numbering of the conductor. |
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