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this is what code says:
4 H" s/ T! l; F9 @4-028: Identification of insulated neutral conductors up to and including No. 2 AWG$ n9 A- k) Z6 J v( [4 ^9 A6 i6 M
copper or aluminum- J* V7 w) j( O6 S: o
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
) `3 f8 B1 J% ~ G# o2 ^No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
" V6 a3 D" l0 @+ B: U+ nsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
, y7 O; p4 n+ K" _' c) Ialong the entire length of the conductor.& k' P0 D3 k0 h8 B
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
: E8 S3 k" y8 B. s( Q( w' `and the identified circuit conductor of one system is coloured by a white or grey covering, each identified+ \; \9 |& x. u( h s
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
- a9 r! _. d% k: H; z# ~identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not3 h. h) w3 Z3 M a o; ~
green) running along the insulation.
7 Q+ Z5 H( j" K* Y1 B# ? O(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
3 x% {' |+ b# L) |an identified conductor; however, in the case of those flexible cords where the identified conductor is
& K6 e5 x" |$ ]' s% e3 \8 I- `6 L/ Pidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.: `0 k' Y7 k) N" N
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
7 T- Y$ N5 B/ Nas the identified conductor by painting or other suitable means at every point where the separate: h% C1 n" a2 X1 Q; r5 E( u5 J5 S
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
# P, X8 ~8 M$ B( `: X) Tthe painting or other suitable means of marking the identified conductor shall not be permitted to render" j* a# ~* G* E+ x. x% x
illegible the manufacturer’s numbering of the conductor. |
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