 鲜花( 0)  鸡蛋( 0)
|
this is what code says:
7 i) l9 H: e: c3 j; ]4-028: Identification of insulated neutral conductors up to and including No. 2 AWG
& n N# v P0 j8 z0 Y1 h/ J2 ^1 _copper or aluminum
2 U5 P, E$ e; W7 O" d+ W(1) Except as permitted in Subrules (2), (3), and (4), all insulated neutral conductors up to and including
5 N/ G& \( z8 R" ?5 v* DNo. 2 AWG copper or aluminum, and the conductors of flexible cords that are permanently connected to/ Y+ S0 X, G4 M5 G
such neutral conductors, shall be identified by a white or grey covering or by three continuous white stripes
& `' C# F; X- p8 Y! @0 Jalong the entire length of the conductor.
& @3 A( o/ w' h/ J+ v" X(2) Where conductors of different systems are installed in the same raceway, box, or other type of enclosure
, M! G+ A+ ~0 dand the identified circuit conductor of one system is coloured by a white or grey covering, each identified
) U% X' [( p) U1 {4 x" {circuit conductor of the other system, if present, shall be provided with a specific identification, and the
3 i. ?6 B( P! S* I; }3 Didentification shall be permitted to be an outer covering of white with an identifiable coloured stripe (not
/ t: _2 K6 R8 agreen) running along the insulation.* ^% q1 d$ F: M) C
(3) The covering of the other conductor or conductors shall show a continuous colour contrasting that of
/ [4 h; E' k y& zan identified conductor; however, in the case of those flexible cords where the identified conductor is* d2 m: _, j' t% }
identified by a raised longitudinal ridge(s), the other conductors shall have no ridges.1 l- S) a6 B( o
(4) For multi-conductor cable, the insulated neutral conductor shall be permitted to be permanently marked
# b8 s% H* T2 O- w% X" ~$ eas the identified conductor by painting or other suitable means at every point where the separate
2 j) [* T7 r& Q( O" j! b) \conductors have been rendered accessible and visible by removal of the outer covering of the cable, and
1 R8 z& S% b* f1 Y0 Y' P% _1 U( dthe painting or other suitable means of marking the identified conductor shall not be permitted to render
1 J5 n+ W7 ?& R' c. O) Villegible the manufacturer’s numbering of the conductor. |
|