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this is what code says:
- R I- v# k) M A4 b+ A+ n, _4-028: Identification of insulated neutral conductors up to and including No. 2 AWG" f8 T8 y( m8 r! M7 T
copper or aluminum
7 q- p, {6 u2 b; ?+ y$ {. U(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including; e: l3 D) B% q' e$ Y3 ?7 q1 ]* V
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to! W8 ~ a$ A: B6 }
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes+ {) w5 m1 F d, f' Z
along the entire length of the conductor.% {2 G1 l$ g5 R ^* a+ O' U
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
3 t+ I$ n# v1 G% M0 t! e: a) o/ Land the identified circuit conductor of one system is coloured by a white or grey covering, each identified3 M/ o7 H+ A6 C9 H2 S
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
/ M8 d* t% z( u& g2 kidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not6 m# y0 T6 K0 H9 P6 k9 x$ E( T
green) running along the insulation.
+ |: p: n4 v9 K" c) r(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
1 {, E9 V! V, |/ @7 D! Han identified conductor; however, in the case of those flexible cords where the identified conductor is! ^$ @ q# t5 a9 N; B" Q4 e
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
$ o4 a i& ~( Z8 \(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
8 y& J1 G+ Y+ v/ @! q& A# las the identified conductor by painting or other suitable means at every point where the separate
' B. ~' m( J- {6 n: m2 hconductors have been rendered accessible and visible by removal of the outer covering of the cable, and+ c/ C. p/ ?: ~4 [' m+ P% { K
the painting or other suitable means of marking the identified conductor shall not be permitted to render/ q% T3 D' R7 E. K* h
illegible the manufacturer’s numbering of the conductor. |
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