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this is what code says:
) M- P$ K0 q8 i/ d' _, g' c4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
2 t% @0 ]1 c; ?! kcopper or aluminum
5 [- y( H$ z" Q; p( y9 U9 S$ D7 G(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including( d+ a8 x7 h' M t
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
8 r9 G' W0 j6 l5 o0 e/ L" ]! ?+ Ssuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes2 M: A0 q' V/ a( `# {! g
along the entire length of the conductor.
- p7 E- T" J" |* T3 u& g, c(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
6 I6 R7 U& Q+ y/ Pand the identified circuit conductor of one system is coloured by a white or grey covering, each identified. |, I5 G+ d1 d+ {# z8 m% \7 Y
circuit conductor of the other system, if present, shall be provided with a specific identification, and the4 k1 `( U; x# ]( E
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
8 v* `. Y9 l' Egreen) running along the insulation., \/ I _$ s3 c6 U6 K
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of1 M" C* P! ]4 {: Y
an identified conductor; however, in the case of those flexible cords where the identified conductor is
9 I! o# t9 e* J1 a. Midentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.8 x3 N- ^0 A, i
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
6 ^ z5 V( W4 n' I% M5 l! sas the identified conductor by painting or other suitable means at every point where the separate9 Z) ^& Q0 v v5 k7 `# G
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and$ p7 D: P7 i( R6 ^ {, J. k: {" {( a
the painting or other suitable means of marking the identified conductor shall not be permitted to render+ V& c/ {* ], U2 E3 J% h8 ]8 s
illegible the manufacturer’s numbering of the conductor. |
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