 鲜花( 0)  鸡蛋( 0)
|
this is what code says:7 ?# J# w# M% |* l/ L
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG+ z. F9 x9 C! H- K5 X$ B5 C
copper or aluminum
' U9 F# U7 X& M% y2 J7 s0 Z: y(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including, d( P" L( E! M, M
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to/ i% Y7 H9 T% d/ h; p; C; [
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes* V0 H- J8 T7 L4 Y$ g* d5 n# V
along the entire length of the conductor.- S l! [' m- B. q4 @8 \( W- ?+ R
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure- D* F z# \4 R: ^# S$ X
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
' F* |2 B! J& p; c' D, rcircuit conductor of the other system, if present, shall be provided with a specific identification, and the
4 j# V# A1 g5 q) D- h) i! Iidentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not( c1 ]+ ?* G/ b9 x. s+ M
green) running along the insulation.
# M9 {0 A' B% T- e: k- k8 H/ @(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
7 [# e: a" _& D& Q% n1 Q4 }an identified conductor; however, in the case of those flexible cords where the identified conductor is, ~; r6 t/ _% M. ]; }
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.5 D+ s6 }7 G# X! v
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked8 D4 t* f: s$ G2 @0 B0 |4 f! Z
as the identified conductor by painting or other suitable means at every point where the separate
( S; Y; [2 R/ i' a4 r1 |. Jconductors have been rendered accessible and visible by removal of the outer covering of the cable, and/ z8 W+ k ~- y5 @: ^$ X/ J4 w, [
the painting or other suitable means of marking the identified conductor shall not be permitted to render
1 z' W5 g( M# U+ ~0 E; w" [7 [$ F; Yillegible the manufacturer’s numbering of the conductor. |
|