 鲜花( 0)  鸡蛋( 0)
|
this is what code says:* C" @: }- Q3 D3 L! f
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
- y& Q; p0 O _/ T3 n4 Ccopper or aluminum
& D3 J; D0 t5 A. u4 j1 e. L1 D(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including1 b8 G! O& ^ e6 A% p
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to9 ~ k2 H$ B, B# y/ h$ [
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes3 K& h8 f# g o8 e& j, h$ u$ y9 t) I
along the entire length of the conductor.& q/ ^; K. b! V5 e
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure- D# p& Q$ P9 _* @& z. a
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified y$ S& F7 W" E7 F
circuit conductor of the other system, if present, shall be provided with a specific identification, and the; y1 i! a0 z# r' B2 N/ k. _
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not" w" F ^' {3 P& p y
green) running along the insulation.4 d* B+ u, p, d0 {! s. z5 W# m
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of1 D0 f/ o2 P8 F7 K" L9 ^" p
an identified conductor; however, in the case of those flexible cords where the identified conductor is t: U4 q# r3 v$ r0 g
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.; x& z+ u+ k2 K) Q% t# @, }$ M+ ]+ K
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked7 k" _9 ~3 M+ K: Y( f/ X. Z
as the identified conductor by painting or other suitable means at every point where the separate- K( `2 J! y$ y- C
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
9 ~: W! _5 Q1 D/ h- c6 q* h, jthe painting or other suitable means of marking the identified conductor shall not be permitted to render
/ C5 i, {* H3 e: v* [3 _7 D9 i2 Yillegible the manufacturer’s numbering of the conductor. |
|