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标题: UL火线零线的颜色 [打印本页]
作者: jsspace    时间: 2015-12-23 19:27
标题: UL火线零线的颜色
产品是筒灯，输入线黑色和白色。
+ W4 W( G  e/ f  s7 p白色是零线，黑色是火线，这个说法是正确的吗？
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作者: 如沐春风    时间: 2015-12-23 20:51
是的，我们出口美国的产品都是这样标记的
作者: brent    时间: 2015-12-25 11:04
是沒有標準規定,只有行業認定. 深色火線,淺色零線
作者: edwardlds    时间: 2015-12-25 11:21
本帖最后由 edwardlds 于 2016-1-8 13:59 编辑
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3 w0 k, f9 i. x6 G+ a! X% D学习。。。
作者: jsspace    时间: 2015-12-25 12:25
brent 发表于 2015-12-25 11:04
8 ^# T# B! g4 R$ d是沒有標準規定,只有行業認定. 深色火線,淺色零線
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其实有规定的，我看到UL1598上有写明白色的是零线，火线的颜色没有规定，跟零线不同即可
作者: fasten    时间: 2015-12-25 12:32
jsspace 发表于 2015-12-25 12:25
# p0 o& S7 B7 {. Q其实有规定的，我看到UL1598上有写明白色的是零线，火线的颜色没有规定，跟零线不同即可
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谁敢说没有规定的？* V: _3 V4 C/ E
6.10 Identification and polarity$ u) [2 z; E/ t# N
6.10.1 A conductor terminal intended for the connection of the neutral conductor of the branch circuit shall be substantially white in color or be marked neutral adjacent to the terminal in accordance with Table 20.1.1, Item 1.5.
8 w+ h7 B  m9 U! |" g4 S2 R6.10.2 The insulation on a conductor intended for connection to the neutral conductor of the branch circuit shall be identified by one of the following means:
2 [* D. J- B- ]( _1 E+ w# {(a) be colored white or grey;
2 o- [3 M' m0 P. E(b) be of any color except green, with a continuous white tracer throughout its length;0 X" e& a1 L  v0 y
(c) be identified at the point where connected to the branch circuit by white paint, tape, ink, or permanent tag; or9 F! t7 y0 r3 S) q# Q0 ^
(d) be provided with one or more raised longitudinal ridges, if a parallel conductor flexible cord.
' B. K5 c% I/ X4 R) s6.10.3 The identified terminal of a wiring device shall be connected to the neutral conductor of the branch circuit.
6 b" h/ o% O* s+ c- X5 q# }$ K' d6.10.4 A cord-and-plug-connected luminaire equipped with a polarized two-pole, two-wire parallel blade attachment plug shall be marked for proper polarity in accordance with Table 20.1.1, Item 4.5.
作者: head0819    时间: 2015-12-25 13:08
我们还是参考一下UL62 Flexible Cords and Cables
作者: fasten    时间: 2015-12-29 10:25
head0819 发表于 2015-12-25 13:08
9 y* E4 e0 X( O我们还是参考一下UL62 Flexible Cords and Cables

/ x+ k$ M3 i9 s6 c9 H1 F( w3 q其实所有这些所谓的白色/灰色是零线的要求要回到：NFPA 70 第200.6节要求：
) E" ]3 [8 k, {200.6 Means of Identifying Grounded Conductors.1 y- a9 N& u% i; w1 r& [- S9 ~
(A) Sizes 6 AWG or Smaller. An insulated grounded conductor
# ~- e' ]0 P+ Yof 6 AWG or smaller shall be identified by one of* f8 F! X( I# |$ x( ]7 ]4 w% @
the following means:
5 Q% D& ?# Y4 Z# t* {(1) A continuous white outer finish.7 m5 i7 r  G, Q( J. G: `/ F3 d
(2) A continuous gray outer finish.
; ?) Q1 t$ s/ I$ o(3) Three continuous white or gray stripes along the conductor’s
! ^; {$ f: f# u  l& t" k# _entire length on other than green insulation.$ ^$ v; Z( _) G
(4) Wires that have their outer covering finished to show a
" G7 t4 J# U4 i. j% Swhite or gray color but have colored tracer threads in' x* T+ X& G& z% [  k' f& h
the braid identifying the source of manufacture shall be- U8 F/ q$ \0 E: {
considered as meeting the provisions of this section.
1 R- C2 w8 [2 K- t' J4 C/ A& d, N(5) The grounded conductor of a mineral-insulated, metalsheathed' T: L/ `7 `% W+ {3 }6 I
cable (Type MI) shall be identified at the time of# l2 d1 K$ E' u) v5 k+ t
installation by distinctive marking at its terminations.
% n9 J6 d# C/ `. I8 X+ z(6) A single-conductor, sunlight-resistant, outdoor-rated
5 L5 f0 P- I2 n0 q% Fcable used as a grounded conductor in photovoltaic
! C7 J0 s5 r) j2 i$ \( C* `, G8 b4 zpower systems, as permitted by 690.31, shall be identified8 N$ L' Y% H& X7 I; H2 Z$ ?
at the time of installation by distinctive white
) S9 z+ \0 n$ b' Z) ]' l4 vmarking at all terminations.# k& l" L5 Z9 k9 F
(7) Fixture wire shall comply with the requirements for
3 ]% H% U( |: j$ r5 g9 \grounded conductor identification as specified in 402.8.- {/ l( r) [' ~( q; d  V: ?
(8) For aerial cable, the identification shall be as above, or- e5 n6 O* R1 S3 e8 q2 I
by means of a ridge located on the exterior of the cable( l5 h* K) Q$ F, h' p. Q  N" A
so as to identify it.
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(B) Sizes 4 AWG or Larger. An insulated grounded conductor" `0 T$ v) ~& u: p4 i. o0 U; |
4 AWG or larger shall be identified by one of the8 A! N: A1 {; O) s5 P
following means:$ A5 {6 I, L2 B; n; h, s
(1) A continuous white outer finish.
0 b# y) x! u- O) a. ~- _" H/ @" K$ Q2 {(2) A continuous gray outer finish.
" F% b. P! N! }" L(3) Three continuous white or gray stripes along the conductor’s
4 q, D) f# S' ?/ I# y3 \entire length on other than green insulation.) w' i0 Q+ o6 @3 ~7 u# P
(4) At the time of installation, by a distinctive white or
: l+ W, w! @2 N' O" C" x( Zgray marking at its terminations. This marking shall/ }4 q- m) ]# I. @) V  k
encircle the conductor or insulation.% {- X; V+ n; f3 b9 u- d/ T
(C) Flexible Cords. An insulated conductor that is intended0 U, _$ E4 W, h9 h! h# y
for use as a grounded conductor, where contained
3 e- c$ b3 H- n( h, ewithin a flexible cord, shall be identified by a white or gray
! R  c; F# P+ o1 U4 B$ V" Qouter finish or by methods permitted by 400.22.
/ \  m% l' [- i" C. W(D) Grounded Conductors of Different Systems. Where
: b2 t, N. N; {8 Y1 Y7 E0 {9 t7 xgrounded conductors of different systems are installed in
/ e! S& j* @, G  [the same raceway, cable, box, auxiliary gutter, or other type' r: a( G$ y* k1 i
of enclosure, each grounded conductor shall be identified, Y$ R3 c9 N0 u$ o5 Z  @$ X% L
by system. Identification that distinguishes each system, C+ o3 ]3 S6 F' A; n% h
grounded conductor shall be permitted by one of the following! Y, ~4 s7 ?& o4 S& U" G
means:
  D8 q3 W; k2 v) r& C, U(1) One system grounded conductor shall have an outer
, g$ i$ X* H7 }+ C) Wcovering conforming to 200.6(A) or (B).
; z, h& T* c! T, S(2) The grounded conductor(s) of other systems shall have
" P0 E! o: ]% F( U3 d& Da different outer covering conforming to 200.6(A) or+ Y# K, ]% F) N" x
200.6(B) or by an outer covering of white or gray with' P& C5 ]' ~2 d* s6 Z" V1 }* ~
a readily distinguishable colored stripe other than green7 q# {" F/ B( e" F8 ]  d
running along the insulation.9 O! }) E- L6 A
(3) Other and different means of identification as allowed
& R; `* d: q. }& gby 200.6(A) or (B) that will distinguish each system; x5 i5 }' m4 U) z, Q
grounded conductor.% X2 S' B. c$ m4 P  T
The means of identification shall be documented in a
( P$ O+ v0 `7 N( L4 m, rmanner that is readily available or shall be permanently4 R0 b5 h; b# G7 r0 z7 U! {
posted where the conductors of different systems originate.- i7 }6 Z$ r; m0 K9 N4 X
(E) Grounded Conductors of Multiconductor Cables. The
  D2 F' }, {2 Uinsulated grounded conductors in a multiconductor cable shall
+ {" c3 |# Q, b: Pbe identified by a continuous white or gray outer finish or by
0 ^3 f1 M! S7 k9 N2 bthree continuous white or gray stripes on other than green7 K" v+ |2 t; j5 C% G% G' n# k
insulation along its entire length. Multiconductor flat cable
6 k$ k( {2 S* ~4 AWG or larger shall be permitted to employ an external
" M1 a5 P. H- vridge on the grounded conductor." \# [% f" x: t
Exception No. 1: Where the conditions of maintenance and7 r/ q) n% e! H. V
supervision ensure that only qualified persons service the installation,
4 V& s5 b$ w5 I# |4 q5 @$ W" ~grounded conductors in multiconductor cables shall
9 h; K9 c0 W$ }* h# b& E( P# }8 Obe permitted to be permanently identified at their terminations2 P# F2 x& c6 b* @, ^) c8 @0 D
at the time of installation by a distinctive white marking or
& c3 J+ R  `" Z6 k+ `' G/ U2 zother equally effective means.
. o3 M* C, ?! q3 i8 ]5 F4 p* {Exception No. 2: The grounded conductor of a multiconductor
* N$ Y! g" V, h2 b# W! b- rvarnished-cloth-insulated cable shall be permitted to be
$ L8 d; i  f; j, l+ L
. C& c' y, V8 |; a1 G: S0 X( Midentified at its terminations at the time of installation by a( I6 ~- K- f% N3 r2 t) R: u
distinctive white marking or other equally effective means.
" ?- z/ m+ F' @7 P) oInformational Note: The color gray may have been used in
! Z5 q; L- l: R. P; E& `6 A. Sthe past as an ungrounded conductor. Care should be taken
% j1 T/ V& m: E1 j/ N$ P% nwhen working on existing systems.
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( }, p- z* g) u) h: F% q/ g有兴趣的可以看看。Grounded就是说的Neutral。你所列的UL62要求就是200.6 (C)要求。
作者: guanito    时间: 2015-12-29 15:00
美标白色线是零线，绿色线是地线，其电颜色线作相线，优先采用黑线
作者: c382260622    时间: 2016-4-5 08:27
还好路过，学习了
作者: dabayinzhi168    时间: 2016-4-5 08:29
路过学习了
作者: tx3721    时间: 2016-8-30 11:39
灯具的输入线颜色要求是零线是白色或者灰白色；地线是绿色、绿滚黄色或者裸铜线；火线是二者之外的颜色。输出线颜色没要求。
作者: lxie    时间: 2018-2-9 14:21
连这个都这么高深，学习了
作者: srycn    时间: 2018-6-27 17:21
过来学习
作者: 小山不高    时间: 2018-6-29 08:03
学习了，具体条框已经讲出来了
作者: liuchenglong    时间: 2018-6-29 09:40
学习了．很有深度
作者: lxie    时间: 2018-7-4 13:31
UL的标准要求白色和灰色都是零线，火线并没有要求颜色，地线用绿色，这个和中国是不一样的，一定要区分清楚啊
作者: Leontios    时间: 2018-7-17 15:28
学习了。
作者: Junoli    时间: 2018-7-17 16:00
UL要求零綫: 白/灰，接地: 绿色(中國是黃綠色)  火綫則可區別于前二者即可
作者: h82063    时间: 2018-7-17 16:08
双极插头的电线不能用绿色
作者: 306133580    时间: 2018-10-10 16:45
路过学习了
作者: SHOPPING2011    时间: 2018-10-14 00:10
学习了！
作者: Tyhler    时间: 2018-10-15 09:32
北美正常按照标准白色电线是零线，黑色电线是火线.
作者: zhongwen_lee    时间: 2018-10-27 09:07
fasten 发表于 2015-12-25 12:325 \, `4 z# a. h* r+ c3 B
谁敢说没有规定的？
3 }/ n: i, F$ Q7 @2 c6.10 Identification and polarity
# p* T# W0 o, T& m5 l  ^6.10.1 A conductor terminal intended for the ...
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Fasten 的解释是正解！
作者: 306133580    时间: 2018-10-30 16:30
学习了！
作者: yu999    时间: 2019-5-12 17:12
内部的正负接线还能使用黑白线不？



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