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this is what code says:
; a& ^: ]6 L4 h( g4-028: Identification of insulated neutral conductors up to and including No. 2 AWG" y6 A4 A; z- K$ s! |
copper or aluminum7 ^% Z4 |& ~/ R9 @4 _1 d1 \& g$ h* a6 N
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including6 ]/ z& b, a& F5 E" c6 j
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
+ R, V1 j4 m/ F2 q4 }such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
* v) w8 k: ]3 ?) B- halong the entire length of the conductor.% ~- R% g/ M" F$ j- X9 m7 z' y
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure% y( p8 x' d& f! G" s/ D
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
3 ^, l5 c! l* g/ {) R! n) icircuit conductor of the other system, if present, shall be provided with a specific identification, and the
! u0 c: u/ H7 o! V s o5 ~8 _4 R' ~identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not( ^ m, _* L z5 L$ T
green) running along the insulation.
, o) h& a7 V3 g) g) {(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
; z& w8 \/ c9 n9 {" J% ~an identified conductor; however, in the case of those flexible cords where the identified conductor is
' r4 N8 _9 s. p; S+ Z0 X- Zidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
2 d' i! E2 ?) P) Z! m. n(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
# B; F. ?/ g4 A7 M4 N2 A& \as the identified conductor by painting or other suitable means at every point where the separate2 U. j8 c f# c9 p+ r5 O
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
/ V6 ~( h& U# }4 ithe painting or other suitable means of marking the identified conductor shall not be permitted to render4 H4 N8 c( ~1 N" m% W o
illegible the manufacturer’s numbering of the conductor. |
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