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this is what code says:
0 o% C( E q# k/ N: E1 @5 l$ l4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
9 S9 i9 K. i1 I! y$ t, Pcopper or aluminum, n0 q) O3 ]" n' Z$ o
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
. N) T* `( b; A' p8 ~0 g$ |No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
@5 H7 X7 m' |! dsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
5 ]; A( e/ b$ E; @( `. E" ~5 falong the entire length of the conductor.
/ h- S1 c/ y1 o7 p(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
Y+ g9 {( I6 A% p) land the identified circuit conductor of one system is coloured by a white or grey covering, each identified: ^7 u4 w. E- C
circuit conductor of the other system, if present, shall be provided with a specific identification, and the+ @& c- J8 l) P% [# |' }' M0 n& D+ A
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
) y3 ^5 C1 H; F$ r& g+ `green) running along the insulation., ^1 ]) W& F) o$ {# x% L
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of+ N" N. d" c: r
an identified conductor; however, in the case of those flexible cords where the identified conductor is
( n1 J5 F( w9 jidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.9 y4 S" o/ a4 |1 H" V5 j [' J
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
# A. i& V* _1 V- S0 [& j# Sas the identified conductor by painting or other suitable means at every point where the separate! f! v' l9 g' h4 Z5 w+ h5 A! u9 E
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
; v( j' r' t. d' V7 I) o wthe painting or other suitable means of marking the identified conductor shall not be permitted to render
0 S; j! N$ d2 D" r( a) tillegible the manufacturer’s numbering of the conductor. |
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