 鲜花( 0)  鸡蛋( 0)
|
this is what code says:; J& }0 F1 X& V: M! g; u) O9 |# S2 l
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
0 e7 @6 v+ ]& x |9 b/ r+ c1 tcopper or aluminum
4 W: t) A; K9 F, s& ]* ]4 `& T(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
6 C* h. B7 ?% q, f/ b) @No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
( o. ] c' C3 s: A& W% Hsuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
$ Z3 a4 j1 B6 o7 z& L! ?along the entire length of the conductor.
# ^$ p i6 W1 t, m! \(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure r' L- e* W! \* t6 y6 h
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified$ x/ o; L3 e! U( q4 y( J
circuit conductor of the other system, if present, shall be provided with a specific identification, and the6 R5 @( g7 r( A; ]6 V2 r
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
! R# z$ A$ B9 G; e7 tgreen) running along the insulation.; p& r7 ]! D" t7 i; D
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
4 y% i. o8 X4 Lan identified conductor; however, in the case of those flexible cords where the identified conductor is, N5 m8 T3 I/ x1 E% h
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.( t. I, k5 f, |- j9 y1 |- B
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
" p8 w' U: Y I1 D2 I/ t& Qas the identified conductor by painting or other suitable means at every point where the separate
( p% D B' T' _conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
& q) H% z7 \: Dthe painting or other suitable means of marking the identified conductor shall not be permitted to render
7 {/ j! w R" h" i) gillegible the manufacturer’s numbering of the conductor. |
|