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[美洲灯具] UL火线零线的颜色

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楼主
发表于 2015-12-23 19:27 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
广东安规检测
有限公司提供:
产品是筒灯,输入线黑色和白色。# o" h2 T  ?& k& W
白色是零线,黑色是火线,这个说法是正确的吗? . ?; j$ v# w# `% h
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发表于 2015-12-25 12:32 | 只看该作者
jsspace 发表于 2015-12-25 12:25 % e: t+ Y0 N) W- A1 M! {, W# r3 l
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
+ t+ ~' S3 @4 _8 Z
谁敢说没有规定的?
& [' Z9 j8 b" j+ H/ V' z6 p6.10 Identification and polarity5 Z' E. W8 S3 c
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 1.5.5 h9 J+ G) K$ Y5 ]* `
6.10.2 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:* A- D  u/ w& ]/ F9 c5 t+ v+ k7 c$ U
(a) be colored white or grey;8 y5 d* c9 {) p* T% [0 x
(b) be of any color except green, with a continuous white tracer throughout its length;2 I6 A& j1 `' |4 p, P7 K; w
(c) be identified at the point where connected to the branch circuit by white paint, tape, ink, or permanent tag; or
, U' d4 u  _" R+ n* G, E(d) be provided with one or more raised longitudinal ridges, if a parallel conductor flexible cord.8 Q& r8 s# ?9 N, g5 d+ h
6.10.3 The identified terminal of a wiring device shall be connected to the neutral conductor of the branch circuit.; k0 O9 P4 ~" y  ]+ r: w
6.10.4 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.

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Fasten 的解释是正解!  详情 回复 发表于 2018-10-27 09:07
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板凳
发表于 2015-12-23 20:51 | 只看该作者
是的,我们出口美国的产品都是这样标记的

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参与人数 1安规金币 +10 收起 理由
jsspace + 10 赞就一个字!

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地板
发表于 2015-12-25 11:04 | 只看该作者
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  详情 回复 发表于 2015-12-25 12:25
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5#
发表于 2015-12-25 11:21 | 只看该作者
本帖最后由 edwardlds 于 2016-1-8 13:59 编辑
5 P1 f$ R/ k: N# R; u1 l: G6 m- K& w: H2 B8 t( x7 v
学习。。。
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6#
 楼主| 发表于 2015-12-25 12:25 | 只看该作者
brent 发表于 2015-12-25 11:04 ' Q0 l% Y: L, r4 B9 M6 x
是沒有標準規定,只有行業認定. 深色火線,淺色零線
/ W3 Z( u: T3 f  w# e2 M% W0 B
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

点评

谁敢说没有规定的? 6.10 Identification and polarity 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 b  详情 回复 发表于 2015-12-25 12:32
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7#
发表于 2015-12-25 13:08 | 只看该作者
我们还是参考一下UL62 Flexible Cords and Cables

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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: 200.6 Means of Identifying Grounded Conductors. (A) Sizes 6 AWG or Smaller. An insulated grounded conductor of 6 AWG or smalle  详情 回复 发表于 2015-12-29 10:25
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8#
发表于 2015-12-29 10:25 | 只看该作者
head0819 发表于 2015-12-25 13:08 ! @) D* }" q* D* a
我们还是参考一下UL62 Flexible Cords and Cables
+ B8 x! L/ S% C) V" X
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:
9 S* D  m1 w5 `- ?4 a3 |! v200.6 Means of Identifying Grounded Conductors.& w8 C& m0 M5 \' u7 ?5 [1 \/ d
(A) Sizes 6 AWG or Smaller. An insulated grounded conductor- {, V$ q4 t2 `" `. X+ t- u! r
of 6 AWG or smaller shall be identified by one of
6 T# n+ ~0 m+ O- R% R4 V  w% w) X; pthe following means:+ Q+ w- E% e+ T/ ]/ Q, m: Y# ^
(1) A continuous white outer finish.
+ h" E; n  {' {( }$ n, E7 T(2) A continuous gray outer finish.* c' X* [2 W" g$ M) N$ T
(3) Three continuous white or gray stripes along the conductor’s
4 R5 F& o" j7 C: e) Bentire length on other than green insulation.! N7 J- R# Z  Z
(4) Wires that have their outer covering finished to show a# w" Y6 `& y* X9 T/ n0 d
white or gray color but have colored tracer threads in5 F+ L5 T# @6 G9 S: i
the braid identifying the source of manufacture shall be
" H" ]9 W0 Q. v  M: C9 o& D8 qconsidered as meeting the provisions of this section.
& F4 z3 O  e1 _7 S5 c- k(5) The grounded conductor of a mineral-insulated, metalsheathed
6 F6 C# U& m; \2 Bcable (Type MI) shall be identified at the time of* U) ~- H7 q  C& F* [
installation by distinctive marking at its terminations.+ O# }) ~- z2 B0 }
(6) A single-conductor, sunlight-resistant, outdoor-rated
8 d# R- N8 F& ?- gcable used as a grounded conductor in photovoltaic
" `. K' e) ~. T" b- r- ^( Z- gpower systems, as permitted by 690.31, shall be identified
0 r- W* I5 G6 W8 O, a, h( d1 kat the time of installation by distinctive white
. e; v. [0 O: j% s" `1 ~marking at all terminations.
# {0 u5 x: g7 g. H, ?/ ~(7) Fixture wire shall comply with the requirements for
- }5 g2 @! B+ Z0 T9 vgrounded conductor identification as specified in 402.8.
; ]5 i: Y# B$ z0 [. n1 `* B(8) For aerial cable, the identification shall be as above, or
; n2 z8 V& s0 B$ I( N$ Mby means of a ridge located on the exterior of the cable
+ }1 ]2 d$ S3 P# h( M* H% q$ zso as to identify it.
. E8 i, e2 B" h5 C' }9 e" r# p; P2 _
(B) Sizes 4 AWG or Larger. An insulated grounded conductor
$ M, O* Z  D& p. r" Y0 V9 _2 i! E4 AWG or larger shall be identified by one of the
, R/ q* Z! k$ E0 f! Q8 K% Afollowing means:1 X2 l: t/ R" i; |1 C
(1) A continuous white outer finish.
  e7 p2 X7 I! G0 {$ g& u6 Q(2) A continuous gray outer finish.
: I7 Z; @" w& L(3) Three continuous white or gray stripes along the conductor’s, X) [2 x. _" S, m" N* `
entire length on other than green insulation.3 O& |  i, a( B. e" C# j- @" I
(4) At the time of installation, by a distinctive white or* u6 W8 R' D- v/ p, I/ M0 W8 r) W
gray marking at its terminations. This marking shall
# i% S* z9 \, Z9 o8 xencircle the conductor or insulation.
8 \9 I0 o2 W4 r3 V/ n- Z(C) Flexible Cords. An insulated conductor that is intended
% p8 a0 h' J# D1 p8 s8 i0 N9 hfor use as a grounded conductor, where contained1 f- _* t5 K8 U) [5 x
within a flexible cord, shall be identified by a white or gray; x1 h* T$ @6 c
outer finish or by methods permitted by 400.22.1 |) i$ t4 L6 Z- _% q" {
(D) Grounded Conductors of Different Systems. Where& N* O" t4 Z3 M0 E' b' |
grounded conductors of different systems are installed in+ K6 ]1 @7 A2 z! S( I( e& s
the same raceway, cable, box, auxiliary gutter, or other type! L& Z0 q9 f9 M
of enclosure, each grounded conductor shall be identified
8 }; f4 I: c' G2 \  ~) F/ {% zby system. Identification that distinguishes each system
+ x: U' j* }7 A  F# \* ]grounded conductor shall be permitted by one of the following
/ \. D# d' J0 Q" O  Z+ kmeans:
0 H( E8 H6 G9 @3 }" }: ~- q(1) One system grounded conductor shall have an outer
' i6 M! g9 o9 L: f7 T( B0 }  {& m  Ucovering conforming to 200.6(A) or (B).1 P; r! c) x( B3 ]7 p
(2) The grounded conductor(s) of other systems shall have& I: b* w6 F- t8 H
a different outer covering conforming to 200.6(A) or- ?; q% ~. W3 Y0 P- a( R/ S
200.6(B) or by an outer covering of white or gray with
( E: V' A5 }6 B. Za readily distinguishable colored stripe other than green
# q0 ^! a5 g5 \! a6 Vrunning along the insulation.
, i- q: }7 G" X  s(3) Other and different means of identification as allowed5 T: {8 }% D. g2 U! v
by 200.6(A) or (B) that will distinguish each system# e2 J1 u6 C+ }
grounded conductor.3 h! m7 [7 d6 ?; k" q5 g1 m
The means of identification shall be documented in a
& r$ j- U. _& U& D% x  e9 kmanner that is readily available or shall be permanently
3 [2 E3 j3 _4 H# Q/ h: w* i% Nposted where the conductors of different systems originate.1 B0 V2 h# y& @# w4 i5 P6 j) W  x+ U
(E) Grounded Conductors of Multiconductor Cables. The4 U, ^7 E, y& w% q% L; [
insulated grounded conductors in a multiconductor cable shall4 n: v3 G% g6 g5 N) P" e
be identified by a continuous white or gray outer finish or by
2 b  I8 z( I- W+ g. g! p9 b  xthree continuous white or gray stripes on other than green
# `; @! [- A: s% b. q! X4 g+ y* \insulation along its entire length. Multiconductor flat cable
9 C# X/ B- Q8 e4 AWG or larger shall be permitted to employ an external
" P; ^  a  P; w8 ^& H8 Lridge on the grounded conductor.
* V* A3 c/ y. xException No. 1: Where the conditions of maintenance and
% M* P2 |5 d5 o" T( P8 Y1 \6 Qsupervision ensure that only qualified persons service the installation,. Z2 J" ?- ?- I& ^
grounded conductors in multiconductor cables shall9 x% v" q* S/ m9 T! \# `
be permitted to be permanently identified at their terminations1 z- [2 n$ c" [& v  o0 U" k
at the time of installation by a distinctive white marking or* P) u5 F+ ~8 ^) C3 k2 w" Y
other equally effective means.4 @" j! v7 ^! z/ ~( j( d( G
Exception No. 2: The grounded conductor of a multiconductor0 W( a6 R# S3 \; k+ t7 \
varnished-cloth-insulated cable shall be permitted to be( `; R  z1 b7 l; _$ M$ J' q

; O3 N: Y* s4 uidentified at its terminations at the time of installation by a$ D& t- z6 V3 s
distinctive white marking or other equally effective means.
! H$ e) [! _2 {: c( IInformational Note: The color gray may have been used in
. n! J/ u% _+ G+ D" Y; F. W3 hthe past as an ungrounded conductor. Care should be taken
* E. r$ |5 f, O$ Q6 K+ Y4 j. d6 Pwhen working on existing systems.
5 n' _* _2 V0 ]5 I( }2 |; [1 ]+ F% I8 x

& M0 ?5 M& d2 x4 k( X' J4 Q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。
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9#
发表于 2015-12-29 15:00 | 只看该作者
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
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10#
发表于 2016-4-5 08:27 | 只看该作者
还好路过,学习了

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参与人数 1安规金币 -20 收起 理由
jsspace -20 灌水

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