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this is what code says:: O% R* a; `8 N5 J9 ]
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG9 S! B' q' U" P
copper or aluminum
0 [+ n7 E7 `* `8 m4 R+ h(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including: _; |( S& ?3 g& n5 l! B9 C
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
; `" B7 [& \( A* b esuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes7 u! ?* v$ z- i0 N
along the entire length of the conductor.
+ R3 ^. s( J- R(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure( Z; V4 P! U+ r: r0 T* d
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
0 |5 n- Y, |# E) }circuit conductor of the other system, if present, shall be provided with a specific identification, and the
! l3 e7 D* S9 r- o# didentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not% n- D, m; l$ o0 d
green) running along the insulation.: {, Z$ b/ n( [; ?$ Q
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
- Y. n e9 ~" _7 V+ dan identified conductor; however, in the case of those flexible cords where the identified conductor is5 ~5 a4 w$ |$ v' \; Q
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
8 P# `+ e0 g- ~4 {4 q6 r6 B( B(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
# `6 Z6 s! B: |7 _' Fas the identified conductor by painting or other suitable means at every point where the separate
! T; t+ U2 F7 Nconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
" o+ k& H4 ]; r/ Cthe painting or other suitable means of marking the identified conductor shall not be permitted to render
- v. n# t; n4 n/ L, [2 Tillegible the manufacturer’s numbering of the conductor. |
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