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[OFF] DSH 524 Identification of Critical Components – Minimum description criteria

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发表于 2012-11-6 16:50 | 显示全部楼层 |阅读模式
广东安规检测
有限公司提供:
DSH 524; [- n0 J* T1 B. Q9 m+ V# D
" l& g: a/ ?4 K" D' i( g
Identification of Critical Components – Minimum description criteria4 N/ a! b6 |) G$ |& Q3 \
1.5.1
. F% i; S7 n" C9 u5 Z0 ?" P
60950-1(ed.1) & 60950(ed.3)) y! @8 h& }9 G6 g

! y8 _9 p! n3 m! ?6 T" [1 w" a( m2 f  v/ \Standard:1 N! w! j6 C" o( \$ `; ]4 k% f
IEC 60950 (1999) 3rd ed., IEC- u- F" l4 v" }0 g* b% L! d
60950-1, 1st Ed. (2001)
, N- g' b, Q$ u" c. |1 f. T/ kSub clause:( _- Q8 B, B) Y) @
1.5.1
; ^4 {: q7 a" ASheet No.  s8 b8 l* d/ U
524
1 ]) B# O/ C- X9 ]' R, ~: n5 T& ISubject:
0 r0 b1 O* U! LIdentification of Critical3 R% y& z) m" j) p6 a
Components – Minimum
, f- W  a2 A; {description criteria
$ c# J3 ~8 h1 `+ O! B( Y1 WKey words:
4 b+ ?" V( r7 oComponents; _9 l3 H* v) K3 P  G' ~' y$ j
Decision taken at the 40th
: l8 L* F, v. V0 Tmeeting 2003
6 G4 C" t* ^/ z" v* F5 ?9 F6 qQuestion:! l/ ^2 E, Q: j' E0 S+ K5 l
General insulated wiring and printed wiring boards (pwbs) that are considered critical components
9 Y- a/ S2 a" Q# Q; `0 \) Mare very commonly used in ITE. A single unit may have multiple manufacturers and types of, p! h6 m: `% K( Y% A& o  K
each component within it. In an IECEE CB Report, is it acceptable to identify these critical
3 E+ O& @1 C* E1 n+ M) ]components by technical information (e.g., electrical ratings, flame class) and reference standard8 }! h4 ]6 l$ Z0 `+ I- C# V' d
only, and not include manufacturer’s name and type number for each component?% V1 r, B& ^2 |3 D  _
Decision:
8 _9 j* u, m% e  t# MFor general insulated wiring and printed wiring boards (pwbs) that are considered critical
* J4 S/ {6 C* Q* E7 }- Ocomponents, it is acceptable to identify these components in the CB Report by technical6 k5 `# s( n& W- b1 v
information (e.g., electrical ratings, flame class) and reference standard only, and not include7 \' h$ Z; g0 U4 y; ^' n* C
manufacturer’s name and type number for each component.8 M8 S3 x$ b: i: ?9 g7 K& I
For wiring and pwbs subjected to special requirements beyond the normal requirements applied to) [, z" I5 c; a* ?7 q' u2 v6 h
all these types of components, such as multi-layer wire investigated to Annex U, or coated pwbs
7 F# t7 v& X3 ?# d4 i" k0 u  Sinvestigated per 2.10.6, the specific manufacturer and type of the component should be controlled2 k* L. z8 }5 D3 V6 C& F! _8 p
in addition to the technical information.! d, A6 }4 o" g8 G( o6 R! p

+ _8 z: t% R' \9 u, Q2 W9 X& y( A% b/ r. R, z# Q# g+ Y) ^

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