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this is what code says:
/ T" k3 l; l3 B# S+ e! F- f4-028: Identification of insulated neutral conductors up to and including No. 2 AWG. E/ |: |5 j, w
copper or aluminum8 G# N6 k9 Y3 j' T, p3 Q% Z% I
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
. z6 Z6 [' Y: I C- b/ \' sNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to# `2 c9 S X+ {3 t8 _( p
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
) _1 R+ B2 s9 ^+ @$ B ^along the entire length of the conductor.- }9 }: q6 [. h- }9 x" l4 S
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
+ G- I3 S1 p9 g7 eand the identified circuit conductor of one system is coloured by a white or grey covering, each identified5 T: f; j4 h, W4 ?( | z/ p
circuit conductor of the other system, if present, shall be provided with a specific identification, and the- y7 t W! o* a! {2 R, i7 [
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
/ J' j7 C2 W _* o- T5 ~green) running along the insulation.
8 {% K9 a. G* L(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of! r* @% G4 c7 Z; j/ h0 m$ Z& s8 B) t
an identified conductor; however, in the case of those flexible cords where the identified conductor is
7 h# P- P: A( d" kidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.4 q; N- z) Q* C. u* P
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
5 K4 i6 x _5 d! Las the identified conductor by painting or other suitable means at every point where the separate4 u4 C2 N2 w7 n8 J
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and3 v$ Z# v. W5 l0 ?, r, Q. G
the painting or other suitable means of marking the identified conductor shall not be permitted to render
' A- h# ~ M2 n1 Villegible the manufacturer’s numbering of the conductor. |
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