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this is what code says:
' l' b' Y4 {7 Y, g4-028: Identification of insulated neutral conductors up to and including No. 2 AWG; K' X2 I( M1 `4 Y; b
copper or aluminum- A+ B( ^- Z1 y' j5 e5 s, [
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including. b/ A1 R* J) {* F* k$ \
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
' @" h7 P+ d" Y5 Nsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes' ^$ H% h! F# Z# _$ M8 P' J- N1 `4 k
along the entire length of the conductor.2 ?$ L- a ^ A }1 H/ a$ V
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
: H: l8 Y* g9 Hand the identified circuit conductor of one system is coloured by a white or grey covering, each identified( M+ K# f; a( G- a4 j* ?, r$ }
circuit conductor of the other system, if present, shall be provided with a specific identification, and the3 _' _1 J0 F& p
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not: S8 ]0 G/ K! w4 o
green) running along the insulation.
2 d/ e! J$ e) ?8 K3 M6 T(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
( {" @8 e/ j! W& C7 }5 xan identified conductor; however, in the case of those flexible cords where the identified conductor is
- \1 A; q _+ S$ J kidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges. M- N$ e4 b ~
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked+ K6 A+ A, S: `1 F: l. [, W
as the identified conductor by painting or other suitable means at every point where the separate& Q& g/ H5 x' I9 C
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and! H5 Z: ]$ @ F
the painting or other suitable means of marking the identified conductor shall not be permitted to render* v( x3 g8 C/ `% h3 \" {, ~$ L
illegible the manufacturer’s numbering of the conductor. |
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