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this is what code says:
8 k) I& }9 }3 t7 g4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
" l3 i$ x) ^( l3 Q/ dcopper or aluminum& w/ s5 z$ q4 ~$ |
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
7 \0 @, ^9 R8 P" t2 m2 g* ONo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to2 }- C1 Y/ |+ P3 m3 {+ \3 [
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
4 U$ A8 s8 g: B `: J# q ualong the entire length of the conductor.
: r0 L* p! [! P3 N(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
1 I5 ~# q) O) }+ p8 V: P7 x* Band the identified circuit conductor of one system is coloured by a white or grey covering, each identified& j) f( ~6 v3 m) ^1 A$ x8 _
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
# U1 k/ R5 ]/ c% sidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not0 ~; a; G: z0 z; c: \9 r& D. J2 ]# T
green) running along the insulation.$ R- h( B' K/ }; F! R. k
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of. {+ i& H! d% g9 Z8 h- a
an identified conductor; however, in the case of those flexible cords where the identified conductor is. s' K( y& A" |' A8 y* j( N/ I/ l3 }. g9 d
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
) Z6 @# _8 i6 A5 s2 g6 t(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
" m2 V I" R4 }" \! u; ras the identified conductor by painting or other suitable means at every point where the separate
7 E* R x, o, c& nconductors have been rendered accessible and visible by removal of the outer covering of the cable, and8 L! R8 t3 n3 {, L; e- p% @7 \9 |
the painting or other suitable means of marking the identified conductor shall not be permitted to render9 H* `( W7 f( I6 @
illegible the manufacturer’s numbering of the conductor. |
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