 鲜花( 0)  鸡蛋( 0)
|
this is what code says:0 p7 r) [. s8 d) m% g9 M
4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
) g" g/ X7 t9 k+ s3 X d- ~2 pcopper or aluminum
6 t, [+ K, a' D(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including. a$ Z* N$ l- T! `
No. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to, n! t" ]7 l9 L
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes. I' Y' p" q! R" k9 Z
along the entire length of the conductor.$ v9 e) O$ ^1 p2 y4 C
(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
% [& D; {& M n6 p3 oand the identified circuit conductor of one system is coloured by a white or grey covering, each identified, t- P5 N" i5 t! V" p# J2 {7 x
circuit conductor of the other system, if present, shall be provided with a specific identification, and the
3 L( a% M1 W) U: K1 _" H ]identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not8 H. o E, {$ W. {' s
green) running along the insulation. `2 f7 ?5 R& `, g! a* k
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
) x; b# E# h2 M0 can identified conductor; however, in the case of those flexible cords where the identified conductor is
c& M% Q P1 a( R4 b# c- r6 cidentified by a raised longitudinal ridge(s), the other conductors shall have no ridges.* i0 E) |& d1 B9 _+ g; F
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked/ B8 f8 s5 u4 U, Z+ y
as the identified conductor by painting or other suitable means at every point where the separate
1 S; E! U2 o7 U$ q2 `9 u8 J. @conductors have been rendered accessible and visible by removal of the outer covering of the cable, and6 c/ e* s& Z- @1 d' I# k5 s& j" L
the painting or other suitable means of marking the identified conductor shall not be permitted to render; R4 ~; q. \% j8 W% O X) T
illegible the manufacturer’s numbering of the conductor. |
|