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this is what code says:# N5 n$ u* b% A# T; x
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
/ @2 m9 s1 S$ ?( N5 N$ h' Lcopper or aluminum
1 j0 t; S1 ?" U9 I(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
' n) Q w3 h Q$ n5 z( z, GNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to5 ~1 o" B$ w& ~ m# o8 K
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes* e: S6 R, {" p. R4 O# Q$ k# k+ h4 R
along the entire length of the conductor.
$ Y, X7 Q# t, j" f- ~: H(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure+ m2 x6 d& U( M7 b, D
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
( h, `# Y# [! m1 i$ c$ ccircuit conductor of the other system, if present, shall be provided with a specific identification, and the% L' H& p8 c: z% I( n8 U
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
# ]$ \8 |5 x- D8 J& s7 D/ x. _green) running along the insulation.6 U& A( W, m2 T! p- f `
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of7 R4 @: X5 \9 H
an identified conductor; however, in the case of those flexible cords where the identified conductor is: H7 [ k& L: }3 B0 w% S
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.7 i4 r; {1 D c) r% H2 \
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked6 F% {' ^1 K$ k9 b; h' t' x" _
as the identified conductor by painting or other suitable means at every point where the separate9 M- L. k. A; U" G' D% e2 O6 V
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and8 l2 x: n* P. C
the painting or other suitable means of marking the identified conductor shall not be permitted to render
3 T2 k# h" b6 [1 o/ }4 G" willegible the manufacturer’s numbering of the conductor. |
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