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this is what code says:4 X0 X6 V0 ~" X& l: b. m
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
, V( D5 Q4 j# \& a7 T# ]copper or aluminum4 ?( B7 h! W5 @# l, h0 q; j4 r
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including) U1 Y X2 T# a4 a3 O% a
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to( d0 N5 U# [7 r0 G2 Z( c
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
) }8 ^% f: x; b! c4 ialong the entire length of the conductor.' N* `* l9 O) Q' s( q
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure& s3 q" [5 l1 ~) ~' |: u; c
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
5 j! v+ `5 Q8 X; {) scircuit conductor of the other system, if present, shall be provided with a specific identification, and the
' U) o: _8 a/ c' M l) nidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
' [! R. u. O' [) \5 p p2 Igreen) running along the insulation.
3 T% a& p7 k+ e' Q% ?(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
0 k% K, n1 h8 Y4 L5 n$ Uan identified conductor; however, in the case of those flexible cords where the identified conductor is, g4 ~: E7 K a" c: P3 ` A# ?
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.$ |" _4 n% c- y' G8 J( [) l1 _
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
; L. N" U3 a8 fas the identified conductor by painting or other suitable means at every point where the separate
$ E% Z+ o( { K) O4 p: p0 j0 mconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
: [/ [! _8 m5 f6 M( x+ k" r9 J8 |4 }the painting or other suitable means of marking the identified conductor shall not be permitted to render- c5 o8 O. Z" k" L9 [! |
illegible the manufacturer’s numbering of the conductor. |
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