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this is what code says:. q% I7 E1 Z( h6 S4 B
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG" w3 g O+ k; A8 t* U9 `
copper or aluminum
* ?. ]. x, m/ d, T7 J% Z(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including3 f2 a+ y1 k8 `3 _% n
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to+ U* L% h$ _) q
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes5 X x$ r/ |7 g/ j$ q
along the entire length of the conductor.
2 |6 B: P+ f. \% L* s' `(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure( b8 _) P/ `8 B! x
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified7 c! K+ M4 y! M; S
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
$ c8 i# _; N7 c. I* R) E. w. fidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
; Y* _0 b3 D' e+ Y7 }green) running along the insulation.
4 O! t n: C! J* Y4 w5 G% W(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of% ]4 o: w2 {9 D* o9 }
an identified conductor; however, in the case of those flexible cords where the identified conductor is
9 C& @* Y& g* F \- x) O: _! Iidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges." U# }! G7 p% o- }& C2 o
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked9 V3 k* p, L# Z* ?( X
as the identified conductor by painting or other suitable means at every point where the separate
/ [( f" s) w% Y8 S6 C* wconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
$ {2 ]& P: a( _4 K+ b$ @1 lthe painting or other suitable means of marking the identified conductor shall not be permitted to render
8 m$ h" l6 i3 _illegible the manufacturer’s numbering of the conductor. |
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