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this is what code says:
7 H0 y* ?: Z3 N5 N4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
! J0 e. x$ }% Y; gcopper or aluminum
) ^+ `( s* T) `: }$ _+ G8 M(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including2 L; X+ |% t' _7 C$ H* x# U; g
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
; S, D7 ~. E. J; k7 Esuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes2 Z8 q! q* k8 q3 u. s0 w* e
along the entire length of the conductor.% k" D7 q, ], b9 ]7 Z
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
1 b5 m, R8 ^, q9 ^2 d+ eand the identified circuit conductor of one system is coloured by a white or grey covering, each identified) H( H7 x* w9 t2 G+ p+ G4 s* w
circuit conductor of the other system, if present, shall be provided with a specific identification, and the: _% h$ `. {7 T
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
3 v& L$ q3 a) j; m- |green) running along the insulation.
! [- k; g5 e. p* a(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of. j; Y/ a3 J+ q6 b$ W% x% Q6 P7 V5 a* n
an identified conductor; however, in the case of those flexible cords where the identified conductor is
6 T+ |8 t# Q7 _5 F3 k) Sidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.+ I% H6 v- |" ~
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked" z [6 @' E/ W1 R/ n/ `/ U5 [8 A$ N
as the identified conductor by painting or other suitable means at every point where the separate
5 e" k/ o8 L* W) z9 i/ V6 ^conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
4 \% ?: B( x, E$ R+ `* a+ X# y7 q* Sthe painting or other suitable means of marking the identified conductor shall not be permitted to render
7 Y' j: R2 G: ?, q& e* @illegible the manufacturer’s numbering of the conductor. |
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