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this is what code says:2 J$ l9 D3 A. O7 i; }# u1 G/ Z
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG% z3 d& a* w( E( C8 N6 A- d7 L
copper or aluminum
. l ?4 I$ ]% u( u5 y! A3 `# q' v- s4 y(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including) y! |7 J) j1 U# h2 [0 C
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
5 u. x7 U. G8 Z% m" h3 psuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
3 p3 c4 n3 I# Z% |8 A0 P5 oalong the entire length of the conductor.
( h: S8 i& o3 O$ b7 Y9 _1 ]. l6 L(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
# E. G3 R) L tand the identified circuit conductor of one system is coloured by a white or grey covering, each identified6 p3 [9 w1 ]( E4 E
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
. k4 _5 _+ z& Y7 Cidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
3 ]* @: C3 X& W+ I. cgreen) running along the insulation./ d& X/ ]' j( ?' {4 G4 [
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
+ B- P' ~) x7 L }an identified conductor; however, in the case of those flexible cords where the identified conductor is1 a3 j) S8 Q v3 [2 q( q* m
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
7 A1 D, B: {. [4 c( b(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked: o( c! G/ t/ ^
as the identified conductor by painting or other suitable means at every point where the separate
0 J: o# Y7 w" N# Pconductors have been rendered accessible and visible by removal of the outer covering of the cable, and2 w3 B! N- g# ^/ l0 k
the painting or other suitable means of marking the identified conductor shall not be permitted to render6 J) h! z3 N$ t* C
illegible the manufacturer’s numbering of the conductor. |
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