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this is what code says:
- I" o8 x% U/ i/ F' h, J8 C. D4-028: Identification of insulated neutral conductors up to and including No. 2 AWG6 r: Y9 \! o0 O
copper or aluminum
% e6 n2 H& |0 j( z; I; n' X4 o(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
- w- u- G7 u5 a% S; Z4 GNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
, a. g# D, a. j6 ^8 gsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
* Z: b. U8 ^9 ~# Falong the entire length of the conductor.6 P* W+ A4 `$ D/ v
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
. M8 L# P8 v' p6 cand the identified circuit conductor of one system is coloured by a white or grey covering, each identified: g6 D8 k1 Y+ W9 z- } p
circuit conductor of the other system, if present, shall be provided with a specific identification, and the! T' s3 Z3 m& w" ~
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
! L/ ?5 ?# s6 |) I" {& _green) running along the insulation.; u, ?/ W" a) D
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of4 N; `# V2 T1 [' ^
an identified conductor; however, in the case of those flexible cords where the identified conductor is# ?7 {. @/ b* O7 Q3 z- {- b
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
9 ], ]2 y% N$ |& d# u(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked$ B* O2 d' |1 q
as the identified conductor by painting or other suitable means at every point where the separate7 w( Z1 q9 q; o6 I C5 C7 s
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and# Y8 U9 B! Y7 [
the painting or other suitable means of marking the identified conductor shall not be permitted to render2 M1 F( Y1 y6 I% e$ @
illegible the manufacturer’s numbering of the conductor. |
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