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this is what code says:
# v P. n6 y( |( J4 @4-028: Identification of insulated neutral conductors up to and including No. 2 AWG6 ?" e# W% |( m0 L; j( p
copper or aluminum
: F5 ^* S( V- K' O8 m7 t3 f: k9 x(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
5 Z2 o; E% ^* n" n lNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
# M- U" O% M0 Z4 X" hsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes' V$ y8 N$ H1 M1 y7 l; [1 }
along the entire length of the conductor.6 J- H) \1 b9 ~$ M
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure) B: J% t$ ~9 Z: n& [
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified* b5 u. v8 f& D8 y/ D
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
. V7 g% ^/ k1 }" O/ k' Y. ?- W- aidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not# ~' W2 c7 d+ J: \0 {
green) running along the insulation.
* h' ?# N: z4 N V9 b(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
- {6 r3 D3 e) q/ ]% Man identified conductor; however, in the case of those flexible cords where the identified conductor is
7 t6 d# T3 l( {- X1 y/ }identified by a raised longitudinal ridge(s), the other conductors shall have no ridges., d1 h, R. x b; J" ^ t4 j
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked9 }8 S" N. d) P/ f) _/ v- l
as the identified conductor by painting or other suitable means at every point where the separate
, J1 m) F* E8 j2 ]conductors have been rendered accessible and visible by removal of the outer covering of the cable, and/ [+ r* e2 a* \0 b# P
the painting or other suitable means of marking the identified conductor shall not be permitted to render
. c$ |2 x/ v$ |1 W% pillegible the manufacturer’s numbering of the conductor. |
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