有关美式插头插座的尺寸公差问题

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UL不像VDE那麼死板，對於尺寸他們一般不作為重點，測試能過就OK了。

jeremyho88

插片厚度0.075和0.095不就是公差吗？

johnmark

jeremyho88 发表于 2016-8-16 14:38
插片厚度0.075和0.095不就是公差吗？

这个尺寸是插座孔的尺寸，不是插片厚度。

fasten

johnmark 发表于 2016-8-15 17:16
4 X. _0 f# i+ T0 X& NUL 498对插头有测试拨出力的要求吗？今年才接触UL产品上班时间没有太多的时间看标准，UL标准觉得很不好看， ...

91 Retention of Plugs Tests
. o" R7 u" M) \( }2 F91.1 The contacts of a 1-15R, 5-15R, 5-20R, 6-15R or 6-20R configuration cord connector shall retain an
attachment plug so that a force greater than 3 lbf (13 N) is required to withdraw the plug when tested as
2 g; I( c& |/ a9 y# r2 E; R- Tdescribed in this section.
Exception: A cord connector that has provision for locking the plug in place after the blades have been
1 s" ?) I3 I4 v" o9 @# N/ w" pinserted in the female contacts (such as a rotating collar) is not required to be subjected to this test.
9 P# S  |6 {0 Q, e7 `/ G* S91.2 A cord connector with a spring-activated latching mechanism shall be subjected to this test with its
mechanism defeated. See 90.2.
91.3 Each of six devices is to be subjected to ten conditioning cycles of insertion and withdrawal of a
* Q4 {  G$ v+ [0 Z2 [) Kstandard solid-blade attachment plug that has American National Standard detent holes in accordance
with Wiring Devices – Dimensional Specifications, ANSI/NEMA WD6, in rigidly mounted blades, following
; |* s; q, u8 W/ Ewhich the plug is to be fully reinserted into the device. The mating plugs are to have the configuration
indicated in Table 91.1. A pull of 3 lbf (13 N) in a direction perpendicular to the plane of the face of the
$ A& G6 m- \5 Ccord connector and tending to withdraw the plug from the device is then to be applied to the plug for 1
minute. The displacement of the plug shall not be greater than 0.079 inch (2 mm).
Exception: Connectors may instead be subjected to the Retention of Blades Test, Section 109.2 and
109.3 (conditioning and 3 lb retention).
: U$ ^8 {7 b# y/ p0 T6 w91.3 revised November 16, 2012

109 Retention of Blades Test
109.1 A flush or self-contained receptacle having a 5-15R, 5-20R, 6-15R, or 6-20R configuration shall be
( {# j0 ?' x" \4 p5 c+ b1 Jsubjected to the retention of blades test described in this Section.
Exception: A receptacle having a 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R configuration and not of the
9 }- T: Y# ]3 s  \* u! M9 |$ C8 p  Uflush or self-contained type may instead be subjected to the Retention of Plugs Test, Section 114.
109.1 revised November 16, 2012
2 u# Y) J& u8 O" f$ r4 R9 d% B109.2 Receptacles having the break-off tab, when provided, removed from one nonidentified terminal are
* f& b8 q# X* e, Rto be subjected to ten conditioning cycles of manual insertion and withdrawal of a standard gauge, see
Figure 109.1. Each of six devices is to be tested. The gauge is to be configured as outlined in Table 109.1.
! _9 h$ O* D" d4 W$ a- j$ oThe force applied to insert the gauge for any of the conditioning cycles is not to exceed 40 lbf (178 N).
, b- P+ R- D% D0 O, SThe gauge is to have the dimensions indicated in Figure 109.1 but is not to have holes in the outer ends
. }/ U) _. \  V! p5 Iof the blades.
109.5 Each of the line contacts of the receptacles is to be tested using the test blade illustrated in Figure
8 @. I$ T: _: c- y9 X1 b& G$ b8 D# L109.2. Each line contact shall be capable of withstanding for 1 minute a static 0.5 lbf (2.2 N) applied to
the test blade in a direction normal to the plane of the face of the specimen and in a direction that tends
3 K- p$ u  D: P0 j  S7 _! T2 O" }; Yto remove the test blade, when the test blade is fully inserted in the contact opening. There shall not be
more than 0.079 inch (2 mm) displacement of the test blade.


+ I5 h3 K3 }$ J; t应该有3处有要求。
6 K0 m( t% T3 Z* ~! A

johnmark

fasten 发表于 2016-8-17 08:06
91 Retention of Plugs Tests
91.1 The contacts of a 1-15R, 5-15R, 5-20R, 6-15R or 6-20R configurat ...

看了备位的解答感觉有点深度，图片的ITS有关美式插头的测试报告中的一页，他们的测试就这么简单吗？发现这里面的标准只有817根本没有标准498其它的。
感觉这报告不太靠谱。
3 J/ v: [: V' q

fasten

johnmark 发表于 2016-8-17 08:36
$ \, W+ B+ A$ P看了备位的解答感觉有点深度，图片的ITS有关美式插头的测试报告中的一页，他们的测试就这么简单吗？发现这 ...

UL Standard for Safety for Attachment Plugs and Receptacles, UL 498
UL Standard for Safety for Cord Sets and Power-Supply Cords, UL 817
* V3 Q( k* P% W- C
! }* h2 l& ]  J5 @& l% ^7 T你仔细对比一下，这是两个不同的东西。他的测试项目都是根据标准来的，测试项目一般不会错，要错可能都是标准用错，所以看看产品到底是适用于哪个标准。

' R- ^  M0 A3 r2 f; P( O5 f

johnmark

fasten 发表于 2016-8-18 07:22
UL Standard for Safety for Attachment Plugs and Receptacles, UL 498
6 ~( f& R: }0 N4 `% E8 ~; e- SUL Standard for Safety for Co ...

1 j7 t! _; D( S5 N5 e: c8 T' ^作为一个UL的新手很难理解这几个名称的区别
% Q) l+ ]) e3 L8 jAttachment Plugs
4 U5 B) O) H' R) `: nReceptacles
Cord Sets
Power-Supply Cords
你能帮我解答一个这几个名称的区别吗？昨天看了下UL 817里面有提到有些测试是运用498标准的。

jeremyho88

这个标准里有

johnmark

jeremyho88 发表于 2016-8-18 10:59
3 T4 j2 ^- a, C1 g3 D! w2 f8 l这个标准里有

; d. L) \: X0 q. i! h# \( ^$ ]非常感谢你提供的资料，确实这里的尺寸比WD 6里面更全些。美国标准里确实太多了，同一个东西尺寸都有几个地方有，测试方法也是的，什么UL 817、UL498。新手确实弄得很糊涂，一个没有公差的标准都不知道哪个最是标准要求的。

jeremyho88

是的。UL标准比较乱，理解起来难。