3 m5 e4 G% P" T6 W- Q3 t9 o請問你有關于這個UL要求的文檔么?還有PWA的認證到底是針對主板,還是主板的PCB而言? 作者: wuybpujr 时间: 2009-11-20 22:08
我手头没原文件,只有UL审厂文件有如下描述,它包含整个主板(即PCB加在之上的元件),对于那原始文件,在UL网站应该能找到!!' ^8 E& Y/ P( h6 o/ |5 _
Printed wiring board assemblies (category ZPVI2)2 E0 x. w; h' j# e
Overview2 ?9 \, K: a. c- r6 i7 h1 T
This program provides traceability for printed wiring board3 H+ [+ M1 T, s& c$ j. C
assemblies. It covers materials and components of assembled! I% S1 x0 o% K8 x" Z
printed wiring boards, including a board itself, when these can only * C2 s. k0 I: c4 v- bbe identified at a board assembly location. This program is used ; d* S: _/ w4 l* j) m5 Z; I$ Dwhen printed wiring boards are assembled remotely from an endproduct4 h1 W+ a7 m! f7 V- `' S* \
manufacturing location and traceability of a board or its 2 x$ o! g# z/ Y& hcomponents is a concern. It is intended to address traceability of a " L; L, j3 p8 _0 ]- \UL Recognized board and/or components only. All other aspects of 1 V6 C: f/ K4 O/ _) k* Fdesign, spacings, etc., are evaluated as part of the UL investigation 4 @/ N$ o0 y3 ~5 h9 d; D7 @of end-use products.Method of traceability" P v7 t$ j* m4 c
An assembler is required to keep records to trace the identity of all, K/ U3 J" _3 \+ {
materials and components from receipt through storage, inventory,4 S5 d" ^3 x3 u0 O
withdrawal, assembly, packaging and shipping. Printed wiring ) E+ q" ?$ T2 [; k9 cassemblies covered under the category ZPVI2 are identified by an & Y% w( x2 f( U! hassembler’s name and UL code designation on a part, shipping # Y- b& ]: ~, B3 b- p# z+ p' @container or included specification sheet. Relevant material and' b& i0 ]2 E. t; K4 H
component manufacturer name and type designations are marked* j" M. U5 Z; h, j/ O1 X: s
on a part, shipping container or accompanying documentation. In$ ^# M6 Z3 u, J4 {3 Q% P9 O; h/ C ^
addition, assemblies covered under this program will also bear the % k" \' y: ^% xUL Recognized Component Mark.作者: fxblq 时间: 2009-11-23 11:19
十分感謝!作者: fxblq 时间: 2011-11-11 10:48
PWB的认证就是PCB的认证作者: bujust 时间: 2011-11-11 15:57
很疑惑的是既然我主板整体都做了UL认证了, 我还需要做PWA认证。 0 A4 x" U3 r& V2 [1 t5 }主板的UL认证是否就表示了PCB,components, connects 等主板上使用的原材料已经满足了UL的要求呢? 或者说我用的这些材料都已经在你们UL报备认可的了。 1 ~# w2 w1 g7 I# m9 s6 |& B; i9 e2 p2 O9 u; K* I
UL的traceability就是圈钱要求,太不合理了。' u N1 i- F& {1 o/ P
另外,所谓的PWA认证就类似于IT产品中要求的VZQC2的半成品认证。好无奈啊! 变法的“抢”钱!