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this is what code says:
$ ~2 A7 ^, t* C' C2 C- b4-028: Identification of insulated neutral conductors up to and including No. 2 AWG! C! j, z( x4 r2 D* H" M
copper or aluminum
/ \7 Z" W- y9 X5 e8 R) e5 ]0 ~$ y(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including+ \8 U& v$ A* W0 x, _; q
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to! ^3 v4 }' k6 I- q9 t" f1 F
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
9 E; \6 K/ ~. H. aalong the entire length of the conductor.1 w9 ^' `4 e3 b% ]+ b" I4 U
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure4 ]: {) I& h9 d
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified- E+ Z- K& \- M4 j! C, d9 M* j
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
, g+ @- d" b3 z% @! p( e; ~" j) W5 t, Kidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not3 M" w- N0 [! l$ o& o$ c
green) running along the insulation.
$ H `) X+ k7 H3 ]( p; b(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
( g$ ]0 e `* }/ @4 Wan identified conductor; however, in the case of those flexible cords where the identified conductor is, q0 i. l1 e1 H- Y3 M+ O }
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.* q1 B' f4 i0 B; s
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked ^: D) l3 z+ _( F9 D
as the identified conductor by painting or other suitable means at every point where the separate/ z1 Y, R' ]6 g
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
2 ^- b* j! t$ D+ `the painting or other suitable means of marking the identified conductor shall not be permitted to render- `6 H. e- E4 i. n
illegible the manufacturer’s numbering of the conductor. |
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