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this is what code says:- @ \4 i) G# W4 M' Q
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG* c2 D, B2 h* _1 ^
copper or aluminum
$ J' ^2 E+ }$ V(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
0 U& c" f5 [: q9 fNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
/ @6 j$ G+ k3 O- |/ lsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
2 h! q& l0 m( j! a! B3 n( I' ]along the entire length of the conductor.
; s+ c8 e! b: ]" q, w* d- C+ J. p( v(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure" U% J: p3 l9 P9 O: n
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified, f0 X3 g9 u Z
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
' _1 ?; u7 G% z9 R2 F0 |identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
; q) v# W/ C* E7 b! Q/ X0 qgreen) running along the insulation.
" F# m% w) V7 Y! G(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of5 F, j6 w6 b" B1 [
an identified conductor; however, in the case of those flexible cords where the identified conductor is9 M. z3 M, B; | N
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
R$ M- W$ F" b* G/ b(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked- a% ~" f4 F* w
as the identified conductor by painting or other suitable means at every point where the separate
4 ]7 D9 Y" ? Y% jconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
+ ~4 G) U `' W$ b. |6 C0 }the painting or other suitable means of marking the identified conductor shall not be permitted to render
e i1 x& k5 W Millegible the manufacturer’s numbering of the conductor. |
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