 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
2 i1 m# u. a1 i# X4-028: Identification of insulated neutral conductors up to and including No. 2 AWG9 u; x0 ?" K5 s5 u, `, {
copper or aluminum7 a, t) P, Q7 L- h, d2 \
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
2 }' u: S% m& E% ONo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to* M" c5 B; E% \
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
; m A( m8 D" S9 K# \along the entire length of the conductor.
2 C2 F8 |$ e+ c1 U. u/ {. O- I(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure! e7 Q. M( t3 _4 Z, d
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified& ~! X- ]$ j! o- @3 M
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
2 u, t; M' }2 n5 t h4 E* \identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
" h* c1 V2 Z5 e6 N/ v' G9 tgreen) running along the insulation.
3 v0 M& L" Z4 i/ z' b(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of4 e: j, D# `+ m0 h$ D% R+ ~9 b
an identified conductor; however, in the case of those flexible cords where the identified conductor is4 Y H. x( j i0 W5 J8 c# ^
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
m2 [+ i( Z9 I(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked' F0 M, n: i0 r1 j* g3 o
as the identified conductor by painting or other suitable means at every point where the separate
) e5 Q0 W) k# X8 N; C7 Jconductors have been rendered accessible and visible by removal of the outer covering of the cable, and+ P F) t4 r0 F0 \
the painting or other suitable means of marking the identified conductor shall not be permitted to render8 [; d3 e. J& k. `, j0 K" g
illegible the manufacturer’s numbering of the conductor. |
|