 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
6 z: c& d' f; E7 C5 m6 r$ F; i* {4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
9 Y6 `; N7 ~3 p L: [% @; Dcopper or aluminum
' L, o: d8 @, z(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
- }" r- h5 C, M% V0 cNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
% M" ~, z7 g+ ~ G) hsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes5 v5 o, }1 |" g0 u
along the entire length of the conductor.
) M2 S. \. F3 U0 w8 T(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
8 F8 s9 |+ X9 p2 s K# } Z3 land the identified circuit conductor of one system is coloured by a white or grey covering, each identified- d% D' b+ a' k+ b% X
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
3 C; c1 k* e; x% M7 A8 F$ Sidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
' c7 V# x( P' S1 Z! _' _green) running along the insulation.% X& J& R9 {( q5 U9 O! D+ n2 j
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
6 Q+ j5 [* q/ k9 ^& d+ Han identified conductor; however, in the case of those flexible cords where the identified conductor is
' T5 x" b P# V4 h( n- Fidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.6 l b S" v/ p$ j
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked0 s" Q) p& v& W! N
as the identified conductor by painting or other suitable means at every point where the separate$ S- S! T" ~3 V/ y0 M1 ]& n8 y! S
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
. O5 l+ v+ K$ [% j( @: Y& Jthe painting or other suitable means of marking the identified conductor shall not be permitted to render
2 J# E* o2 c/ oillegible the manufacturer’s numbering of the conductor. |
|