5 }/ ^+ S0 T: S3 h肯定有,我只是记不起哪个标准了,ANSI/NEMA WD6标准里面对插脚间的距离没有公差要求。作者: kevin7611 时间: 2012-5-11 12:24
ANSI/NEMA WD6标准里面对没有标公差的尺寸是有说明的: 9 D& ]9 p2 B5 j# M0 y9 J+ `/ qIntroduction, \, ?5 a$ ]8 P8 n! [6 G
Throughout this publication the following shall apply: ' z0 E% j h4 e( y' W7 ?1 o: M; d1. All dimensions are in inches, unless otherwise specified.9 u" @- m E" ~# Z+ d4 `/ ~
2. Decimal dimensions without tolerances shall be subject to a plus or minus 0.005- 4 K( k2 l1 N! _: ^& |* Rinch tolerance.! I2 n, P9 g! I+ B& x4 {: I
3. Angular dimensions without tolerances shall be subject to a plus or minus 1 degree9 {, h- c4 i0 C5 u% a9 B6 E
tolerance. K6 s- ~+ l' _; ~4. “G” denotes equipment ground.5 a0 J( C- B9 B4 b: L8 E
5. “W” denotes system ground. 0 B( Q. V0 H# \% \3 P( i( I6. Leading edges of plug blades shall be free of burrs and sharp edges. Y3 r8 D% F) p/ C- t
7. All slots and slot tolerances are symmetrically located about centerlines." y5 q$ Y) O5 V8 H: t+ |2 d7 }
8. Female contacts associated with plug blades that are 0.125 minimum longer than0 t5 z; ] w* y% F) t
other blades are engaged prior to the other female contacts.% x& ?( \( p+ x2 v
9. Configurations utilized on alternating current systems are limited to 50 or 60 Hertz,/ W8 _! ]6 C+ ?
unless otherwise specified.3 i8 a' \$ Y: P E) h2 F9 n
10. Dimensions shown in these standards are for the purpose of interchangeability, and0 i8 g: C) j9 i' z" e
do not preclude other designs. F3 C1 l# t# _& v3 Z
11. The electrical ratings of the configurations in these standards are AC and DC, unless 9 [/ ?. W8 S+ I* p' Sspecifically stated ‘AC’ or ‘DC. 1 u* W3 e' I0 k, l" |5 c5 @2 R第2条已经说得很明确了,未标公差的按+/-0.005英寸即+/-0.127mm作者: maisie 时间: 2012-5-11 13:21
如果没看错的话,应该是10.92MIN,15.62MAX作者: xiaoxiangtongzi 时间: 2012-5-11 19:17
一楼的尺寸设计是合理的. " O' ]! z7 Y/ u6 M. c. q标准就是参照二楼的那个图,不过二楼恰恰把插座的那个图给漏掉了.' X D% `5 V2 a; G; B, d
算下插座的尺寸就知道了.& c! s, A- U; B6 |$ B
插头铜片外面14.6MAX的原因:: O* |& d6 w% [/ z; \
插座口短边的尺寸0.075~0.095",就是1.905~2.413mm1 G, P0 p" r. I0 B+ ~
中心距0.500",就是12.7mm: O6 U0 b Q7 s3 b3 O$ u( H
英寸取: 1"=25.4mm# m' v: R5 z: \! W
0 \+ X* K- x6 k6 V我和你的想法完全一样,但是我想找到标准的依据;6 X6 J% H6 `" G: A r6 \, L% C0 V
至于4楼所说的是插脚中心距理论上设计的公差要求,因为实际中,尤其是带插脚的一些充电器、电源等插脚有歪的现象。作者: kevin7611 时间: 2012-5-12 14:19
对插头插销的尺寸标准ANSI/NEMA WD 6已经标得很清楚了,即使要算两插销内外的最大和最小距离应该分别是10.9MIN和14.5MAX,也就说应该按插头的标准尺寸的公差来算,怎么会按插座的尺寸来算,这个好像不合理吧。作者: g125asd 时间: 2012-5-13 12:06
我要算算看,那个数值是怎么来的,虽然我不做UL的作者: H-RH 时间: 2012-5-14 14:01
所有 UL 插头插座尺寸现在都是以ANSI / NEMA WD6 - 2002(R2008)为准! F( W2 e4 U9 {) A" Z
, S1 B: ^3 i% d# E例如 UL 498-2012:) A/ e1 R0 N3 ]
7.1 The NEMA configurations of various attachment plug and receptacle combinations referenced in this Standard are in accordance with Wiring Devices – Dimensional Specifications, ANSI/NEMA WD6, and are included in Appendix B for ease of reference.5 V+ A: Z) ]. k( ?- d, a! ~; Q
% M; S8 U- u2 P
6 T3 ?$ K5 v, O# Z; J2 ~1 F( C, P; ?( ~/ q
UL 943-2008 8 G, u( U F6 ^5 L- R* |* g' O; [1 ]% o: B- t
5.1.3 Except as specified in 5.1.3.1, male and female contact devices such as plugs, connectors, current taps, and receptacles provided with, or as an integral part of, a ground-fault circuit-interrupter shall also comply with the applicable construction and performance requirements in the Standards referenced in Annex A, Ref. No. 1. 2 P6 S: [4 W$ {: Y1 Y' ]! R+ Q2 n5 X w6 E9 f
Annex A refer to UL 498!: @2 Q. M+ \4 N& c 作者: maisie 时间: 2012-5-15 14:28
我还是觉得我算的数值是对的,呵呵作者: cxh-214 时间: 2012-5-24 15:14
6楼的解释很详细啊.非常感谢。