|
好久不来,变化巨大啊,发个贴先!$ k. F% H1 J3 t1 X* r1 q- Q7 ~5 C
7 l. u% i4 Q+ V5 B4 q, |/ C0 q# [
1、标志不当:0 `, [2 W2 j" A' V* D# _4 i4 z+ q
6 i( @+ s1 r" j/ i7 P
a.fuse marking
$ Z5 D4 O- y4 v/ n, z
' o5 `' q- F5 j3 c! \9 q' \$ O b.power switch symbol
" v% [8 [5 x |. h( R8 B t. u. {0 v) _( ~) P. w6 C4 @& ^1 K
c.protective earth symbol; o' V! c$ G8 v, o, n% |, B) Y
" j" g, N" F8 \# j* i- G: g
d.PE wire color3 |0 m; F) z7 H7 m4 R" {( D4 h
: l& q4 T1 U5 Y" f* s$ S
2.安全说明:' [0 \6 }% m4 U" X4 `7 s& Q9 |1 M
3 m9 @# B W2 `% w O7 A% }9 J3 l
a.Motltipower supply system; z _3 n9 L+ _4 l5 B# `7 |
5 E6 G# B% O" H# Z4 z b.protective earth connection instruction( v/ S0 O- T) r% V" w& S
3 }$ d* Y& j1 b+ } c.High touch current warning label
+ e/ k; q' H1 e# ?* R9 A+ L2 H* U2 h. {: W. N+ t0 @/ n
d.Hazardous voltage' L5 i1 C( t* y
# q4 I' E/ ?; b8 Q. e
3.绝缘距离:4 [# [5 I9 f& }: a0 d: ?
3 B& F/ v' r h2 Y a.10N force requirement for all parts
7 i, M0 d+ a1 D* A. e8 |: L
' R: N3 } K% t5 H; ]4 Q b.misunderstand bulk capacitor's insulation specifications
5 V- t8 p* F) Q
6 ^6 i; W/ ]8 U9 j c.Ill assembly
! y5 I' G Y5 R: m/ {( ~& v
. P2 p1 [, C* S* o3 v d.misunderstand fan wire's insulation feature 3 U5 f$ E0 p) ^
( A( r; K$ |# e$ J. A& A
e.transformer construction fail: margin tape width and turns of insulation tape: {) q8 B2 v8 C& h- e" L" S- w
% G0 D& x1 T; Q# R2 d4 Q. j) t4.资料和元器件:* p1 ?. }7 ^+ Q1 P z8 t/ l
# Z. R! r# ^; G5 Y a.certificate out of validity4 U) S9 N9 `7 m: L9 L
- E4 L2 b; X" C, y b.misuse component certificate: UL and European standards different0 g* p/ H z4 a! T3 N6 I
; |6 v0 a8 n1 X- Y
c.miss safety critical components in CDF: discharge resistors and bulk capacitor
) Y0 @! X/ |. M$ `1 a5 T. i
7 C% |8 ~% f7 g6 m d.misunderstand the requirements for safety critical components: not all safety critical components need certificate
) Y. U. l2 T4 @- m. Z% O! S) N
: _$ y6 w3 x! ] n( a" n& a e.misunderstand components 3 r( p( g9 V+ Z) C% y% u
4 e J9 i$ y J8 L) b# B n5.安规测试:
* ^ e0 V# V( i9 x" j! B9 h
7 s, m. g+ g4 Y/ F5 {3 k- A9 B a.Hi-pot fail, especially after 48hours' humidity treatment) r6 R0 N: o& F/ B5 g
8 P9 d6 ~! t1 h$ \$ c) T, m3 J8 B b.Touch current fail# y! R1 l) A* G0 e0 U- e
' y& z% ~" G8 Y c.Output overload fail: temp. exceeded safety limit
: t8 q4 O; M5 T
2 _0 s2 T6 S. G. | d.Component fault simulation: temp.on transformer and output voltage exceeded safety limit$ p- q) g! ^' @# l+ T/ x
5 [" Q: B# p* p
6.设计更改和生产一致性:
. }, l; |8 f+ K$ O
, }% g- Y1 Z; E! @ J: E8 ya. Non-conformance between certification and production
5 |: J# ]9 N% ]1 [
: S$ i* n" O- p2 {. t" ^b. Label format 7 }9 A4 }& }! n0 `/ R% ^
5 l2 F5 P& Q# y% n
7.PCB Layout图提供不对,只提供了器件装配图,没有走线图。 |
|