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this is what code says:, R; G1 K1 k' O% t$ \& k! \/ f
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG ~5 h2 G5 o: O8 U
copper or aluminum5 Q' A; E- j. \% l K5 L
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including& ]0 P! U7 n7 s% z2 o: u% x
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
: G% y/ U8 b" e2 J G% d1 A, tsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes8 T$ m& a$ O) J) o
along the entire length of the conductor.
: e7 W0 _$ }, ?. N+ p+ A) e3 e(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure# r8 v4 c6 i q1 y( m! |' O
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified }) u( _5 v# O/ K' q6 n* A
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
2 T) d0 f4 D' j% v6 @/ Zidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
# S! J# z; s D4 K' m5 Jgreen) running along the insulation.
! D' n: a) Q8 y: s" _5 c7 m(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of8 s8 c2 b- y7 X* X% F7 T
an identified conductor; however, in the case of those flexible cords where the identified conductor is% y7 t6 a$ ~$ L7 T/ l) m" C
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.5 u* D& k: F* L, B% F1 m
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
) Z# B8 H& `" H! C sas the identified conductor by painting or other suitable means at every point where the separate
8 ]) }/ W/ B0 U" Zconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
9 M7 N7 r8 |6 v0 Z. e- Pthe painting or other suitable means of marking the identified conductor shall not be permitted to render; G1 s, d5 \! _! \% Q
illegible the manufacturer’s numbering of the conductor. |
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