 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
! F/ A: z% L: y$ Z$ ~& O4-028: Identification of insulated neutral conductors up to and including No. 2 AWG) M# {1 [+ M. c! W. z- X
copper or aluminum
$ ?0 b4 _; A9 l5 p0 j! r, a(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including" B) H- m+ |- q/ Q! w$ P' I
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to
* q7 ]9 i& t& W3 Osuch neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
( F" U9 n6 d, s J# m$ talong the entire length of the conductor.
' O6 S$ T8 ?1 G" p$ i(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
- U! U, A" |7 land the identified circuit conductor of one system is coloured by a white or grey covering, each identified3 C* y1 ^% l0 [ {8 w# ]5 R
circuit conductor of the other system, if present, shall be provided with a specific identification, and the& h1 p) T, ?7 T8 V j" ~; ^& r% O+ Z
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
2 ^1 ?: G- @0 Lgreen) running along the insulation.5 \8 c9 G/ Q8 O- J$ U: L
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
/ y) C; T1 [2 _4 y( m4 _/ Van identified conductor; however, in the case of those flexible cords where the identified conductor is$ A+ A7 u# J0 c5 S4 t* C$ R0 E5 A1 W) g
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.# G4 N$ t0 k1 X" z: Z
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked/ t* h6 {/ h( v i2 w i6 J9 }
as the identified conductor by painting or other suitable means at every point where the separate. y9 Z! k9 v% f4 G+ g. W& d
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
0 u9 h- P# s1 _8 ]/ H+ d6 Cthe painting or other suitable means of marking the identified conductor shall not be permitted to render
% ?! B2 T5 S6 u7 \illegible the manufacturer’s numbering of the conductor. |
|