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this is what code says:
5 i0 I" X5 a: d5 Z9 N4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
5 T# l! N7 k+ a* Ycopper or aluminum% x" G4 |* b& Z7 u. M" K* Y
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including+ I/ D' P v( h
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to" E! {! q& `% T/ [; v8 k
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes( Q1 Z& n# A% `) V
along the entire length of the conductor.
5 {; @% I$ T y6 F' W. `(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
) o6 s9 V7 @2 }" m4 R+ Cand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
& T0 ^" A7 C! S z; C( n* ]circuit conductor of the other system, if present, shall be provided with a specific identification, and the3 T8 i _9 S% b0 r+ z
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
( O5 u' w, U% C+ i! D( T' agreen) running along the insulation.& j3 V1 H: X8 t1 |0 }2 `1 B" }: F9 A
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of5 t. K; U. j8 I
an identified conductor; however, in the case of those flexible cords where the identified conductor is6 L1 w2 ?" b0 U& i' V# _# u
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
7 G4 ]8 k w& d6 g6 E(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked2 ?& {& A& u8 w; {6 V9 Z' p) F$ K
as the identified conductor by painting or other suitable means at every point where the separate6 O9 J, D3 q& N
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
4 n. m4 c k% t' H' \the painting or other suitable means of marking the identified conductor shall not be permitted to render) F+ Q/ v4 H/ g) f
illegible the manufacturer’s numbering of the conductor. |
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