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this is what code says:5 [( T- x9 z+ R: q$ b( N# P( J4 v
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
: w, H% f/ U1 h: x1 ]copper or aluminum
" c3 w( g* k4 i. O; b, Y6 I(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
6 O" [9 U5 u- V8 q/ mNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to0 i7 I( S4 v, _4 H3 C" P
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes# V* y1 R& I. a+ n4 e7 q
along the entire length of the conductor." w" E% y$ N2 |- q6 y; f) |
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure/ ^4 T) e4 L' @7 H) ?# ]
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified2 N. J6 q0 i; C; N& P+ a8 [
circuit conductor of the other system, if present, shall be provided with a specific identification, and the" ]- ]& P: d. M2 |. J& r
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
m3 n7 |' b$ Bgreen) running along the insulation./ l* g+ w( P. s$ I; U
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of# u! V" }0 b% j5 m& l1 q
an identified conductor; however, in the case of those flexible cords where the identified conductor is
3 ?# R; y t: P3 T M/ L' Y, z+ H5 @identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.2 I+ W/ N7 u1 W$ ~
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked. }0 r" `$ Z2 u8 C' B7 h
as the identified conductor by painting or other suitable means at every point where the separate6 g8 w+ V! y) c" S3 o
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
- h# F3 c# Z0 ~the painting or other suitable means of marking the identified conductor shall not be permitted to render6 L, M6 s# E& N" ]% G) R6 n
illegible the manufacturer’s numbering of the conductor. |
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