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this is what code says:6 t5 u4 ]' X9 v: W
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG9 K4 N J: k3 J* l
copper or aluminum
7 ?: p4 G0 F2 ?- Q u(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including( [) J/ d' `3 F7 Q
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to5 r m: s& J& Q) e" r- e9 x6 Q
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes! e: F* P* ~! s/ t$ k
along the entire length of the conductor.: [8 _# y. l+ V. `
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
/ i- N" p% ~6 @6 e, w( R* uand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
+ ]+ f4 o( j* H# z* tcircuit conductor of the other system, if present, shall be provided with a specific identification, and the
' F% |' ]8 |( Q8 b+ ?4 W4 Uidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not1 N8 [" T @& V) X/ g2 u& t/ _
green) running along the insulation.
, E3 h- T% d2 ~( p% k% }! e(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
* i, [ h; I. @5 n5 J, n/ ^an identified conductor; however, in the case of those flexible cords where the identified conductor is- a' Y3 w9 k# b( q) N
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.) L0 \7 t' w6 q* w0 p9 ^4 ?! x& U& C
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked7 R, q" h2 W8 _. _( {
as the identified conductor by painting or other suitable means at every point where the separate
* D; g6 d+ o$ d# ^) L$ Econductors have been rendered accessible and visible by removal of the outer covering of the cable, and
' d/ ^" F, w& R* d3 k3 @' ethe painting or other suitable means of marking the identified conductor shall not be permitted to render
1 i6 `' O9 E- H2 s0 s! e; F/ ]illegible the manufacturer’s numbering of the conductor. |
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