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this is what code says:/ y Z7 L+ G# {; S! J4 Q' n& N
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG; H6 _. w% S, |, O; w4 s' m
copper or aluminum2 }0 d" i i, `7 G- S; W5 x
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
/ o3 V. |( e' Z. ^7 K4 _0 gNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
* V' k& P" C5 ^4 [such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
2 D) |7 m9 R% G" _' f( X8 r6 kalong the entire length of the conductor.3 L; A& _. D* q
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure& K3 ~( G) L& B( k" F
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified0 z/ Z' G2 j! O! |( E
circuit conductor of the other system, if present, shall be provided with a specific identification, and the3 u0 J6 E8 A: T; }, D5 T
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
. I4 t( w9 \4 Z1 Ugreen) running along the insulation.
3 M/ d0 V3 r( |) Z(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of) W! M N8 s" n. t" P
an identified conductor; however, in the case of those flexible cords where the identified conductor is; B1 l) p$ o' e/ N, J5 j: i) V
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.( e- Y4 n% |( r! h0 Y
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked* m; O7 x" O( Z3 g# j: ?
as the identified conductor by painting or other suitable means at every point where the separate" l, K8 @9 D2 ?6 y ^
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
% F N% s4 C1 j2 D$ ]the painting or other suitable means of marking the identified conductor shall not be permitted to render9 o; W# P3 N" U5 U' L
illegible the manufacturer’s numbering of the conductor. |
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