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this is what code says:) @2 d# W, M% g4 i
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG# }5 N( p8 ^0 T/ w
copper or aluminum
0 h! F4 }( j+ `& H7 a, U% p, w(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
f8 ^9 h1 l0 ~7 }' I' h# D% [No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to4 i: L" B1 \/ V. J
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
* `: f/ R1 k6 d: q7 A8 Malong the entire length of the conductor.* x& S! N+ N8 A P: X+ U: J
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
! Y4 f2 f8 m4 X! T! k B* @and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
' O1 t2 g7 P$ k2 [; s0 b tcircuit conductor of the other system, if present, shall be provided with a specific identification, and the
5 }4 p; }0 z8 m# {) K5 Widentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not$ S( H# ?2 m, i2 r
green) running along the insulation.
3 l8 r/ N. m4 V. V' t6 t3 G(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of) X# J" x# a* J4 E1 K/ I# s
an identified conductor; however, in the case of those flexible cords where the identified conductor is3 I6 m' i$ |# [8 e) h/ _
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.7 R2 y" `! @6 R- M
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked: L5 H6 f! S. ]9 \5 w* a
as the identified conductor by painting or other suitable means at every point where the separate
! F: f& D2 I% ^& a5 cconductors have been rendered accessible and visible by removal of the outer covering of the cable, and# J5 G1 Q0 G' n
the painting or other suitable means of marking the identified conductor shall not be permitted to render, q: J* R8 E3 b# S+ w
illegible the manufacturer’s numbering of the conductor. |
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