鲜花( 0) 鸡蛋( 0)
|
this is what code says:
9 n2 R7 I6 y5 p" E3 `$ l) j4-028: Identification of insulated neutral conductors up to and including No. 2 AWG+ N- v/ D( [, h$ |3 ~. D7 @ [6 M
copper or aluminum
8 U, t; J& y1 `- V3 K(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including. h) p9 H! {( E6 u
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
8 l) ]3 b Z9 }, k msuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes& r' ~$ U3 W# J/ w" {
along the entire length of the conductor.
2 w& @3 v. a8 \/ X8 M9 Q- c: s* x( o(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
& x8 H2 s/ k. Zand the identified circuit conductor of one system is coloured by a white or grey covering, each identified/ F6 \: e* t# X
circuit conductor of the other system, if present, shall be provided with a specific identification, and the! [: X* [; }1 g
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not4 d8 P, o/ u/ L* [- @9 i
green) running along the insulation.
- Z- E7 S: n$ z/ c+ x3 d, Z(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
7 r' @# I0 x; w/ R pan identified conductor; however, in the case of those flexible cords where the identified conductor is
# v+ X$ A7 Y7 e# `2 {identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
; Q- s7 g5 i& v0 T! y7 C(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked, n# B& [! ]) ^# b
as the identified conductor by painting or other suitable means at every point where the separate. e2 ^4 s! ^" r1 c8 `+ [
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and2 ~2 m6 u e% j0 _1 I
the painting or other suitable means of marking the identified conductor shall not be permitted to render" u* |+ Q% d- W. w+ e8 C, R2 {/ Q
illegible the manufacturer’s numbering of the conductor. |
|