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好久不来，变化巨大啊，发个贴先！/ |$ \- U9 B6 \
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1、标志不当：
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' |0 A( j6 N) `6 d& t. p4 \1 c' P a.fuse marking
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b.power switch symbol! m" b% R$ y4 H: `& ~
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c.protective earth symbol' R' ~ V7 {- _( }4 j( D0 S
, r# X- L% Z z# c' H d.PE wire color0 f7 A0 l4 {6 r( c& l8 ?, n
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2.安全说明：/ M) P) N3 S" z) B* X4 e) K' b
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a.Motltipower supply system! T) Q/ t' k5 S$ k* [8 o
; Z7 s* }/ F5 A( ^& k+ s5 |" V b.protective earth connection instruction
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c.High touch current warning label
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; o6 d5 U: Y; r \" X- L d.Hazardous voltage0 }! q" ?4 z, B: b) v5 T
: u8 x0 @- v+ O4 Z$ ^+ X3.绝缘距离：
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a.10N force requirement for all parts , H$ m) v+ R2 P7 \0 P. r7 b
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b.misunderstand bulk capacitor's insulation specifications: t: J) e O. P* c9 w; y e
# b0 p- ^4 b" n) z c.Ill assembly: G$ D2 U6 i0 Q3 {# d
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d.misunderstand fan wire's insulation feature
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. }5 S0 a$ C# l e.transformer construction fail: margin tape width and turns of insulation tape
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/ Y7 \1 `0 f/ v$ n3 y9 a4.资料和元器件：7 I0 F. s, ~/ H% q8 f) {; V
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a.certificate out of validity
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b.misuse component certificate: UL and European standards different) w1 R, o* l( O! {
, z# l8 w2 {9 n3 _8 o' i" u c.miss safety critical components in CDF: discharge resistors and bulk capacitor
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& E. B2 q# r& b9 s d.misunderstand the requirements for safety critical components: not all safety critical components need certificate8 A% e& e0 M; `
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e.misunderstand components
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; J* V5 g. d* l. I5.安规测试:- L- \; `, `$ v5 X0 H& Q# ~: K
! q. F3 E: K& K$ J a.Hi-pot fail, especially after 48hours' humidity treatment2 D. {. e3 e3 q
! {( W, @2 G3 }9 Z b.Touch current fail' X' o# B* o2 b0 Z3 c0 B$ l4 A8 ^
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c.Output overload fail: temp. exceeded safety limit, n, D \( l2 ^, d, M q! U$ x7 r
) r k2 o, f- ~1 A3 C/ ~. I# D% M d.Component fault simulation: temp.on transformer and output voltage exceeded safety limit
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( y! q/ V5 s1 J2 d/ e6.设计更改和生产一致性:: X5 X6 b- \% U8 w0 V! q
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a. Non-conformance between certification and production% B. n. ?7 d; Y/ G' B6 x2 Z
( L* B* R: z* V7 d9 H# h: kb. Label format
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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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发表于 2007-9-1 14:06
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