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this is what code says:7 I4 H' K5 r& a$ F8 l8 Y4 K; O1 x3 Y
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG, n# x) O, s9 Z8 Q, y/ A, ?
copper or aluminum% l6 i5 W# N* m
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
0 ~$ a# m7 F9 m6 B6 ~1 R& e* vNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to9 y+ `, J- W! K- d& p
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
' A8 W0 a# H3 y" M. _, Malong the entire length of the conductor.
. G: C- @" x1 {. J7 \3 ](2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure, @7 C. ^! w: b; B
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified1 v3 c! _7 v, W# |' V
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
/ I& J# A3 W; L t3 Fidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not( v" `& N# f5 V$ Z# n4 u
green) running along the insulation.% X0 k, }% A- |' h4 q i6 W7 t
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of. M" G0 h7 u0 }
an identified conductor; however, in the case of those flexible cords where the identified conductor is
* [) f; E! T* C1 Hidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.! g2 x5 \* q' }+ t( D1 w0 @" V
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked2 N7 m6 b8 W' h8 z" }& l
as the identified conductor by painting or other suitable means at every point where the separate& `- G; c4 v S: s* S" V: `
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and8 J0 ?4 p1 n$ D* L* N! Z7 g- S
the painting or other suitable means of marking the identified conductor shall not be permitted to render
" F2 g& w9 F/ Q: V; M( ^- zillegible the manufacturer’s numbering of the conductor. |
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