 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
2 T$ A9 D! R, H: c4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
B' Z% T& h/ j$ B& x xcopper or aluminum
# @' j4 [ f+ P! M- W3 M(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
0 K% d9 N( e* H; T: B9 |7 BNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to4 z0 O& [/ u4 c# T; o N3 ~8 P
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
7 E3 f0 Q* s& \' o. l7 calong the entire length of the conductor.
4 i7 u- z B$ e" p, A$ q5 M(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure9 p s, g* j7 \5 m' j5 U8 {( n& | o
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified o( A& q1 R0 y; z: R
circuit conductor of the other system, if present, shall be provided with a specific identification, and the" S$ q% T. N3 H q- b
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
8 F- K2 a- K, J' K$ mgreen) running along the insulation.1 f% u/ u$ P ?9 Z6 Q1 D& N
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of0 l* K: I. n; k
an identified conductor; however, in the case of those flexible cords where the identified conductor is
: j& ~1 M9 C$ b, r7 l9 ridentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
$ Y9 E; T: B: `6 {1 i' u(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
4 x/ i& X% I; f- N/ Z! h- Jas the identified conductor by painting or other suitable means at every point where the separate# C4 S! a/ D. U; H' U+ t8 f( g7 C
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
+ J _# |# y* J1 I3 t0 Nthe painting or other suitable means of marking the identified conductor shall not be permitted to render
' i! j0 c/ [1 |# I" Millegible the manufacturer’s numbering of the conductor. |
|