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this is what code says:
6 }* q( m! U. M4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
8 c# ?0 U6 U: x& }' Bcopper or aluminum2 }0 Q; `; K: {5 z, u! |
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
+ D1 { Q& g5 o2 `5 y% }No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to! A( O: n) ?- a- M
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes Q, Z! _% f, |# A4 y* J
along the entire length of the conductor. c) |$ Y5 V/ ^
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure( }9 C7 z8 c1 q! M) C, z2 ]4 l! _) V% i
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
4 Y) w5 ^3 C8 E) _* [, Ccircuit conductor of the other system, if present, shall be provided with a specific identification, and the
+ Q- a! X9 o1 ^+ H7 P4 Y" videntification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not1 j2 W' N& i' E) f0 O
green) running along the insulation.
8 N. |: N W, A1 D7 a1 u$ K: S" v. N0 W(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
8 j' Q' ]* D x( b$ Ean identified conductor; however, in the case of those flexible cords where the identified conductor is
9 \+ X( N9 z- a- f- b V: J. {identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.+ l% f9 W+ d! L: d
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked9 H* o' H! J% c$ b7 j) u ?; T, f& Q
as the identified conductor by painting or other suitable means at every point where the separate: U [" I" b2 c; [
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
- R: x% G* e( |the painting or other suitable means of marking the identified conductor shall not be permitted to render
8 Y1 F6 Y, t: m3 L' J1 Qillegible the manufacturer’s numbering of the conductor. |
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