 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
5 A+ ]+ ?% d8 N7 ]7 Z4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
. v% H$ f0 `; m4 t+ J: ?7 xcopper or aluminum" }* ^# A# P4 ]' e
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including! [6 q# u3 M7 L/ t
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
P: h. F7 Q) U$ G7 usuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
* U5 P0 X& y/ f) `along the entire length of the conductor.- H( Y6 B9 `, J7 u; u$ [, ]( N- G
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure" a* ~! u$ V3 n! r+ G* j
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
/ o& |* o: d$ h9 w6 Xcircuit conductor of the other system, if present, shall be provided with a specific identification, and the3 ?8 m8 t; {. o7 i# x
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
- t" i7 O0 Z. n H# M. Fgreen) running along the insulation. b) @" I+ Q9 L9 E4 V
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
8 }* k. O. P& a2 {% a4 ?# Qan identified conductor; however, in the case of those flexible cords where the identified conductor is# Y8 k3 b# E+ C) T7 e& X$ E
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
' H# H1 E' k6 M* E(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked B2 P* g' _6 A9 l5 k& }# ~/ Y$ X, t
as the identified conductor by painting or other suitable means at every point where the separate
. p6 R Y! Q% xconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
- k, y6 A( h, n* O4 h& Ythe painting or other suitable means of marking the identified conductor shall not be permitted to render% I8 J$ U/ H( y/ l
illegible the manufacturer’s numbering of the conductor. |
|