 鲜花( 0)  鸡蛋( 0)
|
this is what code says:. `8 p- l( Q; m8 U9 t$ W$ P& s) U
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
, G2 }+ Y; C# t1 c/ Rcopper or aluminum
7 @' `- A: n. V& f% @(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including+ ]3 Y2 L( r+ K, g& J
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
7 R, @0 u X" U& O; isuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
3 J" i) {7 \" R# `; ]0 Ualong the entire length of the conductor.$ l- {; N5 \; C k
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure }, P0 K' _( B% J
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
3 \0 o0 u- u1 b9 C: v& Ycircuit conductor of the other system, if present, shall be provided with a specific identification, and the
0 X: O! S. k( `* _, Q3 H W j3 H9 qidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not7 i* P' j Y- _* t5 E
green) running along the insulation.( c7 |( e" [0 H0 t
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
0 H5 J! F2 Z6 d& O$ t) lan identified conductor; however, in the case of those flexible cords where the identified conductor is* I# ^( R. V' d
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
; S$ C2 a& f3 C0 D: M( Z; m(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
9 E4 p9 A* m gas the identified conductor by painting or other suitable means at every point where the separate, [% Z/ R0 S" p p
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and3 F7 L% J2 @8 m) [/ {" F
the painting or other suitable means of marking the identified conductor shall not be permitted to render R9 w1 G" X( w; B- @0 X' i( u5 O
illegible the manufacturer’s numbering of the conductor. |
|