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this is what code says:
2 K# Q* r) ~" {+ d8 T4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
) Y0 d5 C* N8 J( h1 y& I- zcopper or aluminum' v. V. W5 F+ x* b+ x- Y
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including0 Z" Z& T% R3 I
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to" Z+ x$ A; H; B
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes# }7 r$ w- P, o3 ]
along the entire length of the conductor.
- M$ o/ A* v4 q, u% Y: Y' O' J: \(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure: P( q6 h1 C, a6 U5 X8 ?
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified7 W m' ~% s. X7 C- C4 B- X
circuit conductor of the other system, if present, shall be provided with a specific identification, and the/ [ f/ _: g1 L; n; p
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not! U% Q+ ]! ]- O: e" I& N; {# ^. [6 n
green) running along the insulation.9 ?* H$ `% }# T1 Y" N/ F
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of5 T1 X- e. H) U3 B9 M% j/ F
an identified conductor; however, in the case of those flexible cords where the identified conductor is
8 I' H5 @" F; y4 X- o. yidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
' T6 n5 r* J; a1 b- y+ V(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
4 |. b+ A; j |( z1 `& k% A. i. @as the identified conductor by painting or other suitable means at every point where the separate
: m* r% \/ G% A: p2 c+ M3 k7 W7 }6 kconductors have been rendered accessible and visible by removal of the outer covering of the cable, and) N& H: `3 A8 a# P* v
the painting or other suitable means of marking the identified conductor shall not be permitted to render) M9 F4 b7 u) K* [ z! x3 b2 j
illegible the manufacturer’s numbering of the conductor. |
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