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this is what code says:
. p5 x* X1 U8 D. f4 f, g4 t4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
) o4 t+ M. y" g8 Ocopper or aluminum q; M8 P6 n$ G
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including/ p6 [! \: D: F( F* a9 `7 O
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
1 n5 J S/ Y2 m4 v, ~" s2 Q1 t6 jsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
: ]# |, k( w2 \9 g! u5 y9 ualong the entire length of the conductor.) q) z7 N% R- q1 `( h4 }
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure; L0 \& R: G: M1 D2 y" Y7 O
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
3 ~8 c r$ _$ Fcircuit conductor of the other system, if present, shall be provided with a specific identification, and the5 v4 q7 w; R2 M$ J* p9 ?, E
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not9 |9 L t) K6 c3 \3 g7 n1 D
green) running along the insulation.
& i2 b9 p+ [2 k3 j! \(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of8 b) { d, B3 A% G
an identified conductor; however, in the case of those flexible cords where the identified conductor is
3 w' S9 h5 x% v* y1 fidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
* k8 Y2 d0 T6 a8 Z(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
4 {# N3 O( }1 t+ J' K# Y5 Ras the identified conductor by painting or other suitable means at every point where the separate
) e' A4 h9 X* Lconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
' }9 q) A* F! Q3 Othe painting or other suitable means of marking the identified conductor shall not be permitted to render: o4 \5 ]* P1 F5 b
illegible the manufacturer’s numbering of the conductor. |
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