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this is what code says:0 i! |; \9 t( F/ P, b+ r* s
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG4 N) L4 n& `+ a0 C1 U
copper or aluminum
$ S6 N+ V$ u P$ K(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
, ]2 u3 B( g0 i% d' K' hNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
) k! c; H3 J- N( F6 b8 w1 gsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes$ F, j, H" @! L9 ]
along the entire length of the conductor., B+ S0 D9 B, G+ S
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
t! M V4 _& Y/ r( M2 sand the identified circuit conductor of one system is coloured by a white or grey covering, each identified+ B1 E2 e. |$ A. k: a
circuit conductor of the other system, if present, shall be provided with a specific identification, and the' z( x: L; t, b/ u& ]& |
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
2 N' D& e1 M, k- L- I% |9 |green) running along the insulation.
& t" z8 Y# k" [$ s& _; E9 D) ](3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
: M6 k& v0 I6 E' xan identified conductor; however, in the case of those flexible cords where the identified conductor is: C h! @+ p% ^" f0 X
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.3 M% Z8 s9 o* P4 N" o
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked, L, z6 f5 H N( M% [% Z1 F* ?
as the identified conductor by painting or other suitable means at every point where the separate
7 u/ S7 _6 t# Bconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
9 f% w: B$ A- f# sthe painting or other suitable means of marking the identified conductor shall not be permitted to render+ {, k# L4 d4 q; o- r6 y* {
illegible the manufacturer’s numbering of the conductor. |
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