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this is what code says:2 w3 E0 e3 M& m( I+ d
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG/ E/ N2 q9 F: T/ X: _
copper or aluminum
' P# U! K. R* f# O- U(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
( O1 W8 l; y6 [/ V5 h& f5 rNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
! H, V' p# Y' dsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes: G$ d, C/ a6 E! \$ C$ x. T" ~4 @
along the entire length of the conductor.$ F' J* R0 ?) T# E) M2 u
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
1 f8 S# C( c5 ?( N) g5 d4 gand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
- ? L1 K v, ~ `3 W& fcircuit conductor of the other system, if present, shall be provided with a specific identification, and the; Y* I) y/ J$ B! y w% a; R0 {
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
! d7 Y1 T! A- G) Ugreen) running along the insulation.
# I/ W! W: S- b' ~( `' n(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
( h: Q/ B/ C3 f1 z. q/ gan identified conductor; however, in the case of those flexible cords where the identified conductor is
" n. X& h% h$ q/ j3 Iidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.( h4 Z6 m4 e) X. s, S2 J* ?$ J
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
4 k3 j+ a# B. p. P' J, M1 G. aas the identified conductor by painting or other suitable means at every point where the separate
^7 M. R" s" u2 m! D2 oconductors have been rendered accessible and visible by removal of the outer covering of the cable, and' A* c# N) R- j( Y5 [1 J
the painting or other suitable means of marking the identified conductor shall not be permitted to render
3 H6 ]. k, {0 \( S% o, Willegible the manufacturer’s numbering of the conductor. |
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