 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
; ~0 i# |$ M) V- Q( p1 B4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
# g1 d: n/ Y, z+ I7 n. E1 Y a% {5 `copper or aluminum( C) H* h# U1 C/ p7 }& V
(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
& F" b2 |4 ]- M) K" VNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
$ X' C9 i% C9 @# D9 d msuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes* G0 P; ?8 A/ |- f1 O! ^" g
along the entire length of the conductor.' w, I& G7 i' a) J4 P$ m. o) d; u
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
) `; }6 a/ K9 V3 r# B/ U; Jand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
/ z$ x" R( y% ~* W8 lcircuit conductor of the other system, if present, shall be provided with a specific identification, and the6 h/ M8 ]' F! ?9 n; v, i# P
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not' M: j0 B/ R3 n+ g* w- p0 g5 d( I
green) running along the insulation." B* D, z! g+ k
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
- ~2 ^, V0 U" ~0 n6 \2 Pan identified conductor; however, in the case of those flexible cords where the identified conductor is: B& ?% b# K( s5 r, o' V+ b: B( m+ F
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
H- V& [, u! E B(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked e# I% u7 A' U6 Z( S
as the identified conductor by painting or other suitable means at every point where the separate
2 E3 T& g; c% \* gconductors have been rendered accessible and visible by removal of the outer covering of the cable, and
) F& i4 h! R! T) g" p! v0 E3 ^8 u; ?the painting or other suitable means of marking the identified conductor shall not be permitted to render
! E$ }" w: v; @8 f9 o3 ^illegible the manufacturer’s numbering of the conductor. |
|