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this is what code says:
9 Q: [4 N6 {/ y# Y* g0 N9 [4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
3 ^1 {# w; A! i# Tcopper or aluminum6 u3 u! u0 b% K0 D
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
# U5 b4 o" n6 n" ^6 F' ^No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
8 S: o6 H) B# S1 H/ Dsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
1 a/ `2 Y2 Y5 U! e& Galong the entire length of the conductor.
! [$ j5 O! K0 M5 I [5 N6 }(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure B6 s, I- ]7 ~
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified3 t' W/ Z3 g' V @
circuit conductor of the other system, if present, shall be provided with a specific identification, and the: o8 { D- N# U% E6 K! t) u- ?
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not7 Y/ \# G1 V T- g) g( V. k
green) running along the insulation.$ N6 t0 z0 }" G9 a
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
; _ E( T; S" ?# q" Q* jan identified conductor; however, in the case of those flexible cords where the identified conductor is! |; @. d5 i% a6 \
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
: G* S Q2 C% a) h3 v' ?(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked' j* u/ N9 Z, g. t K7 @$ j0 X
as the identified conductor by painting or other suitable means at every point where the separate/ z2 _9 U) j3 ^
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
0 z) I0 H) n: ^& hthe painting or other suitable means of marking the identified conductor shall not be permitted to render
* P8 b& G7 I2 j; h+ f5 c! ~illegible the manufacturer’s numbering of the conductor. |
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