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this is what code says:
6 K* |. H4 z$ G4 h& R7 d& p4-028: Identification of insulated neutral conductors up to and including No. 2 AWG* B! m# P% a3 K4 H: l9 K- N
copper or aluminum2 d6 `* K) C* v8 X0 e
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
6 e0 Z, P4 S) ~" yNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to( B0 J3 u( V( `) q0 Q# E% l( b7 @
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
$ ]5 [) w0 i/ R4 j6 ]3 A9 u% qalong the entire length of the conductor.
, ]9 \2 e' M# s' a- T(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
( @1 f7 r( l5 b% |; o9 M+ Yand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
! Z ? n6 F+ kcircuit conductor of the other system, if present, shall be provided with a specific identification, and the( |1 M2 o4 U7 w: Z7 O
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
: @$ g! n" s0 ~- c5 ^3 C+ s/ z! |6 z2 Z" mgreen) running along the insulation.. O1 H4 |/ _& }' m, T
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
, T* L/ ?9 _$ l# s; Dan identified conductor; however, in the case of those flexible cords where the identified conductor is
* O5 j1 C v/ q( i7 Oidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges./ U( V9 ]* J7 w$ \8 X
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
4 s* S0 d5 d& b' c9 P zas the identified conductor by painting or other suitable means at every point where the separate4 _9 r. W; N; t
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
0 e- V9 E3 Y x- {( J2 pthe painting or other suitable means of marking the identified conductor shall not be permitted to render$ s+ v7 ?, o T. Y5 D- R
illegible the manufacturer’s numbering of the conductor. |
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