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好久不来，变化巨大啊，发个贴先！2 x2 ]; v/ I1 Y; o& z0 n n
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1、标志不当：& ^* g" ^) `7 f2 B- v2 o7 _ d% R! e- f
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a.fuse marking4 i" F9 B) J4 d @+ ~
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b.power switch symbol
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c.protective earth symbol- r3 F( s' F, a5 y
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d.PE wire color% R& i& \4 K) Z4 w9 u
& E/ Q. H$ P. p6 z2.安全说明：
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a.Motltipower supply system* Y8 m3 U" I- b5 u- j, C
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b.protective earth connection instruction
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; Z# n8 R7 p" _5 ~3 R \% ]. ? c.High touch current warning label
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6 I6 `9 j* W' v/ ~0 F( H d.Hazardous voltage) o5 R" R9 q2 {
& R7 E" V, v/ V t3.绝缘距离：! P8 {4 R" ^* e4 F* s( @ z. w
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a.10N force requirement for all parts
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- ~$ x% F4 t2 g6 N; m1 g/ {5 w b.misunderstand bulk capacitor's insulation specifications
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- e9 d# i- P e* K4 e& [3 C% Q: { c.Ill assembly) \3 n+ m% h9 i, |/ s2 x& o
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d.misunderstand fan wire's insulation feature Z' Y; b, U* s8 y2 j
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e.transformer construction fail: margin tape width and turns of insulation tape0 c B- @/ q& W
; C4 [# w1 C6 E$ j4.资料和元器件：
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a.certificate out of validity
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. Q6 H4 J! ?1 h, ~' j5 \ b.misuse component certificate: UL and European standards different
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. G9 |4 y3 a( e3 a. n c.miss safety critical components in CDF: discharge resistors and bulk capacitor
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d.misunderstand the requirements for safety critical components: not all safety critical components need certificate7 Q7 v( P& w9 t: G
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e.misunderstand components ' [) \; A/ p0 p; `: i3 }( L4 H' u
% Y! k0 h5 H$ V* _ `4 S- e5.安规测试:2 \7 R, f; D8 M4 @
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a.Hi-pot fail, especially after 48hours' humidity treatment
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. g& ^/ T) n9 T5 J/ y% l b.Touch current fail
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( |. g" {* |7 F- v5 K V c.Output overload fail: temp. exceeded safety limit
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d.Component fault simulation: temp.on transformer and output voltage exceeded safety limit* \; N6 I$ D4 N9 d1 C
2 x( _4 g: x( b/ T" p& N6.设计更改和生产一致性:# e9 [! V" f/ U8 q& g B' V& M% ^+ N
+ T1 Y" m/ r# r; O* Z6 h7 la. Non-conformance between certification and production
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& U5 j* {/ Y! e5 U# qb. Label format 3 i5 O# D4 I2 k* M2 a$ [6 M! D- D6 {
4 D0 o) o* J8 ~7.PCB Layout图提供不对，只提供了器件装配图，没有走线图。 |
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