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this is what code says:
6 `& S! @, O% j- D) f6 e4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
$ a; I8 }: [; lcopper or aluminum" u" j( h% z( D0 d
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
8 p% @. y/ @! I! D/ l& [No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to3 Q H0 w; G4 m- @
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes+ m. r; o u0 g/ K. v
along the entire length of the conductor./ C. d& @; r" P- l& e; n F
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure1 c7 \0 H0 M/ _ d
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified3 F% n6 [8 x( s- B! e9 n
circuit conductor of the other system, if present, shall be provided with a specific identification, and the/ h8 V: d- @& v& n
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not5 ?1 l% P" w+ ^6 e2 L# v
green) running along the insulation.
5 }) c! S. q6 Y* R9 f8 ~, S0 Y& L(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
, P2 C. i J5 G/ Y5 s* San identified conductor; however, in the case of those flexible cords where the identified conductor is: H' f; K1 o4 m
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.) \+ F5 s* D0 g/ Y7 q
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
& `( ^: V4 J0 `9 Fas the identified conductor by painting or other suitable means at every point where the separate
) ]0 l4 }3 B8 econductors have been rendered accessible and visible by removal of the outer covering of the cable, and
; F4 f/ M. m1 i0 b% G! Zthe painting or other suitable means of marking the identified conductor shall not be permitted to render+ {) C1 k. x) B& @0 G1 ]
illegible the manufacturer’s numbering of the conductor. |
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