 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
) f% p, D5 e" l1 w, b4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
/ z" J# o3 q/ Z b4 Xcopper or aluminum
! _* x/ J) \! d(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
5 v! V1 d3 N4 s7 t. _2 BNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to$ y" n- H" _+ L! K8 l6 v4 c
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
% |* q: ^( T1 x; aalong the entire length of the conductor.
9 R8 W! K K5 Q' m/ B8 O, s3 \(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure3 }3 v: D' q* @' w! F. Z) M d) K
and the identified circuit conductor of one system is coloured by a white or grey covering, each identified
& H- E. @' W4 X6 \1 k2 Vcircuit conductor of the other system, if present, shall be provided with a specific identification, and the+ l9 E) J' M, c0 u1 b
identification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not( Y; x$ I% E! v" R! g. A
green) running along the insulation.
" T3 ]$ s5 I& a) h8 A(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of$ O* r: J4 ~2 t, E2 W6 K/ D
an identified conductor; however, in the case of those flexible cords where the identified conductor is" Q H1 h$ d' w, K
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.
8 u, R3 K1 K! P" U2 V# W5 u0 M1 Z(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
) O1 x4 P R6 |& R; l1 R6 das the identified conductor by painting or other suitable means at every point where the separate6 Q) q. g$ C% @. I. j7 m
conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
0 F% Q8 A9 V. o% Sthe painting or other suitable means of marking the identified conductor shall not be permitted to render
& [) s5 M% l% |4 S' `. F9 {illegible the manufacturer’s numbering of the conductor. |
|