 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
7 z0 K" J( Y) b* D$ K4-028: Identification of insulated neutral conductors up to and including No. 2 AWG* @: l" C6 `: ], H2 c9 u
copper or aluminum5 J+ A0 @/ o, [# ^
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including; e& e+ v# u! {+ v. c$ ~
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to$ `& u2 P ~, E
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
8 s, r8 _# G6 `4 Galong the entire length of the conductor.
* d; k" ~' R; [+ H( a' f(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure. e( r& }; w$ ?- ]+ e& t. o# F
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified1 z$ [% n5 F# h# l
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
4 H; Y0 c. t9 cidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not# q& O4 \0 P8 E' h3 O: L0 n0 {
green) running along the insulation.- ], _3 N" Q( y# d7 T
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
. a! j: v/ ~7 kan identified conductor; however, in the case of those flexible cords where the identified conductor is
) O; k# c" K7 |+ Bidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
; a1 j! i, m1 b5 G(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
6 W4 \ S! Y( kas the identified conductor by painting or other suitable means at every point where the separate5 X7 {+ Q' m* {$ Y% z& G# V
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
( v+ P+ K" \! y, `) Fthe painting or other suitable means of marking the identified conductor shall not be permitted to render E6 h/ K4 }0 R
illegible the manufacturer’s numbering of the conductor. |
|