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this is what code says:
+ B, F6 U2 b% r! A. o4 d7 b. c% f( x4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
4 f0 e+ C" z1 Lcopper or aluminum: k0 J0 f+ U8 Q' b' J
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
4 |( p- M$ O/ @4 J( M# i, f1 }No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
3 l# ~; ^6 T4 Nsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes1 w E5 R; y: K( o
along the entire length of the conductor.
0 X+ ^0 _: w+ a0 g* \4 X(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
/ J2 }7 J( |' J+ mand the identified circuit conductor of one system is coloured by a white or grey covering, each identified3 u2 w+ @/ P$ g2 @1 h9 x
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
% R3 s4 H: K' b) w: [1 hidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
" b& v, K+ R/ J7 O# Q' H Wgreen) running along the insulation.$ j( w3 e2 Y2 S; k
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
! _: \; U: [* p1 han identified conductor; however, in the case of those flexible cords where the identified conductor is3 P8 g# Q/ @6 e9 m& o0 E4 L8 o
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.. {2 f1 A5 L6 ?- P$ q# k
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked C) i5 V( c2 P+ J4 R: P; u5 `% u$ W
as the identified conductor by painting or other suitable means at every point where the separate
& m0 P5 M1 K9 Jconductors have been rendered accessible and visible by removal of the outer covering of the cable, and! y( c' S- ^- z4 p6 @
the painting or other suitable means of marking the identified conductor shall not be permitted to render( W" X& I. l4 y- _0 M
illegible the manufacturer’s numbering of the conductor. |
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