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this is what code says:
" c2 A+ s1 o9 v9 ~4-028: Identification of insulated neutral conductors up to and including No. 2 AWG; C. m9 Q' a3 o0 d8 F& a
copper or aluminum m+ w4 t$ f3 v& {* ~
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including& u+ G5 Q5 Y* R7 Y
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to! ]# U A1 R$ c1 K$ ~4 @# H
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
! H7 _" U& V. l4 f4 _, \along the entire length of the conductor.
5 p0 }5 F5 J" L) u1 v5 V, K(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
1 u% g/ d( x. O1 fand the identified circuit conductor of one system is coloured by a white or grey covering, each identified% T4 B* o/ z- N! h* |
circuit conductor of the other system, if present, shall be provided with a specific identification, and the4 D3 d; ^+ }% }9 q2 @
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not t6 B! D1 ~3 X: c9 R% }
green) running along the insulation.8 L" L' l4 l3 e' v! w* z' I# Z
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
) E0 c! S0 a6 m" C+ j" k0 ^an identified conductor; however, in the case of those flexible cords where the identified conductor is
0 F. P- g" D$ }( }1 r; Zidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.$ h; d* I% p0 s0 J: E/ F2 p
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
! g, ?. k" L" d# das the identified conductor by painting or other suitable means at every point where the separate/ p- [3 h1 ^% j! ?7 l2 z3 D
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and" n# l: Q: N. h
the painting or other suitable means of marking the identified conductor shall not be permitted to render
+ ^* z. Z6 ?, X9 L" u2 `illegible the manufacturer’s numbering of the conductor. |
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