PCB板上的标识问题

jcyxb

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

PCB板上的UL file no 和型号是否必须要标明，例如（E226038          ET-005)

tsunn

需要包含以下四个内容。
3 A2 b* C, t& wA:Recognize marking---认可标志RU
B:Recognize Company name or trade mark---认可公司名称或者商标
C：Type designation---UL型号
3 J& i3 K5 @& s  y1 d- J5 x1 _/ fD:Factory ID(if any)---工厂代码（如果有）
对于认可产品，可以不标ul file no.

Andy.Yang

For this, you need to check the description of its UL FUS procedures, and in the marking requirments, there should be indications.

Normally, the UL file No. is not an necessary element for PCB, but sometimes, the E No. was used to indicate the recognized company name, and similar. So totally depends on the description of its UL file...

Andy.Yang

tsunn 发表于 2013-5-27 15:46
! n' H/ X0 L3 ~4 ^' `需要包含以下四个内容。
A:Recognize marking---认可标志RU
& P+ I, \( X( E& S7 r# F) C6 v, nB:Recognize Company name or trade mark---认 ...

UL does not ask to indicate the recognized mark-RU, only for the UL listed products, the "UL" with a circle symbol is necessary, but for "RU", it's not an necessary element.
: p8 y- n3 V7 H9 ]
5 Q6 F3 g0 [8 ]. UAnd in most cases, the manufacturers select to indicate "RU" on their products, in order to easily show that their products are UL qualified, so unless there is a description in the UL FUS procedure that the "RU" is a must element, then no need to show "RU" on the products.
. B, m2 v' S- f/ B/ d" _( n
" V8 Y! P) c  {So finally, for UL recognized products, we need to check the marking requirements in the FUS procedure, and find out what should be marked, or not necessary to be marked, that's the only option.
+ H% U/ I6 \( n8 \2 n& t0 g/ eBut if the RU mark was indicated on the label/products, then the RU mark itself should comply with the description of the Recognized Marking Data Page in the FUS procedure...

Andy.Yang

Cite an example as below:
2 |0 r& h1 D" i; m" H" }4 }4 J
9 w& w) r( n5 l$ o& R! [& zYou can check the attached for one PCB manufacturer, so the RU is not a necessary element, and the E No. is not a necessary element, I believe there is similar description in its UL FUS procedure...
! T4 S" Q0 ^. D, a

Andy.Yang

But for UL listed products, the UL listing mark must be indicated on the label&products, and four elements shown below must be closely indicated:
1. "UL" with a circle;
) Z: [* p" V# L3 U2. The word "listed";
; z3 t2 V/ C; B3 I  E" A3. The control No.: normally four characters combined by numbers and/or letters;
4. The product identity.
. n7 _0 x5 _/ A0 V$ P' s
& T1 A( S& U% [6 a; qAnd above could be found in the LMDP of its FUS procedure...

! u+ ^; N( D" }1 u

tsunn

Andy.Yang 发表于 2013-5-27 16:05
Cite an example as below:
% N) t" o% u5 Q0 T( o! T$ A' {' t
+ @4 B! {1 l. X3 l6 `- j( g) oYou can check the attached for one PCB manufacturer, so the RU is not a ...

You are right

jcyxb

Andy.Yang 发表于 2013-5-27 16:15
$ q6 b8 o, h+ B* LBut for UL listed products, the UL listing mark must be indicated on the label&products, and four el ...

% {+ O% x& B' a* \1 T1 S# QOK，TKS！

jcyxb

Andy.Yang 发表于 2013-5-27 15:54
3 K, t* X7 P( n% LFor this, you need to check the description of its UL FUS procedures, and in the marking requirments ...

但是，如果没有file NO号和厂商型号等信息，又如何去区分这个PCB是哪一家的？不能区分哪一家的又怎么知道有认证没有呢？

Andy.Yang

jcyxb 发表于 2013-5-27 17:21
但是，如果没有file NO号和厂商型号等信息，又如何去区分这个PCB是哪一家的？不能区分哪一家的又怎么知道 ...

' D( a/ h9 Y2 t+ L# C4 uActually, only the customer wants to know where the PWBs come from, but we have below options to find it out:
) v& @* r1 `3 o% I) H1. If the UL file No. is indicated, then directly know the PCB's manufacturer;
2. If the UL file No. is not indicated, then the trade mark and the recognized company name could be the root to find it out;
3. And finally, if the customer still can not dig it, then directly ask the supplier of the PCB, that's the only option.

* j$ L( O: i. y" `9 h  f( D1 rAnd if I were you, I can 99% to find the PCB supplier information even there is UL file No. information and without directly asking the PCB's supplier...