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this is what code says:3 L" `: ^/ j7 b$ B# S6 K8 }
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
/ p& d* j/ U! S: @9 Q+ N" }7 K- Wcopper or aluminum: g, k+ S: a% y1 d, s* @
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
8 m# }* q! e" K7 [1 J7 YNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to6 j5 e) y5 O0 u0 s
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes- K% P& ]+ I+ j8 b e9 u0 U
along the entire length of the conductor.
+ d# |% }% w) f" ^/ b(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
p: k7 G% p3 C" p% T$ mand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
% ]0 x4 _: O% |' \circuit conductor of the other system, if present, shall be provided with a specific identification, and the8 R5 `+ l9 X0 o
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not, d, n# \$ T9 [5 K! n
green) running along the insulation.
" K. c( C! k: k7 ~ o, x+ p* M' E(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of! B& {" U: Z" J3 U
an identified conductor; however, in the case of those flexible cords where the identified conductor is0 U- |: f8 a. O
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.7 V; ]/ _1 G5 C9 _! Z7 s
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked# _- d1 O1 \' W
as the identified conductor by painting or other suitable means at every point where the separate; ]2 L! g0 b5 V0 V% ?7 Z( \
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and2 {" _) k- @- f% w- j3 c5 |
the painting or other suitable means of marking the identified conductor shall not be permitted to render1 o0 C5 E7 U% }3 y( n' s1 n
illegible the manufacturer’s numbering of the conductor. |
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