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this is what code says:8 @* i* {5 C3 O( L# S
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
" a7 F7 u* P/ k' c- |0 h, ^1 Ccopper or aluminum; v' l) e' G' ?1 w6 B; n' U
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
! [! |) M; [! Q" t' t: n9 x3 `: ^No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to/ @6 X8 v9 L5 i, l$ A
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes- H8 h/ D( B5 F2 ]7 X
along the entire length of the conductor.6 g7 b8 a* z( m& E) w9 T
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure& @ u& {$ |' G0 J, b
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified+ C0 b0 y1 E4 n9 x1 l
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
- p3 }- |% a8 T; V# ]1 }5 W [identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not; P" v f6 r! F
green) running along the insulation.2 \+ F* J6 T8 B3 Q" c
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
6 q) \$ E5 h# T9 W6 j, tan identified conductor; however, in the case of those flexible cords where the identified conductor is
# ]2 B( o8 d! I0 t* |, J2 [+ c- Oidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.- h X6 e8 O5 e
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
+ W/ Z* L. P5 i, B+ N& nas the identified conductor by painting or other suitable means at every point where the separate
( L; C) j9 A2 g. }conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
; k0 I* s5 ~% [' Othe painting or other suitable means of marking the identified conductor shall not be permitted to render3 F( q; ?0 U7 ~7 ~ F$ Y
illegible the manufacturer’s numbering of the conductor. |
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