DSH 524 Identification of Critical Components – Minimum description criteria

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DSH 524 . u7 _9 y4 M5 ^ 0 l+ j0 M: \) ]# n& F9 i7 C

Identification of Critical Components – Minimum description criteria

1.5.1

60950-1(ed.1) & 60950(ed.3)

( f$ K. T- Z; @) MStandard:
& a% S* `+ z6 H+ _IEC 60950 (1999) 3rd ed., IEC
60950-1, 1st Ed. (2001)
2 n" b# `+ C3 b) GSub clause:
. [1 f/ {' I+ E4 Y- ^5 E1.5.1
Sheet No.
524
Subject:
# V5 S+ Y$ p$ P: f  pIdentification of Critical
* K3 F& P' T) @7 X, S* XComponents – Minimum
" _  T) I( A- z) x3 bdescription criteria
5 _( _8 ~1 }8 n1 g  e. f* {% \' N! G6 L, xKey words:
, y* b- E% Y+ ~  b) ?) L! HComponents
Decision taken at the 40th
meeting 2003
Question:
General insulated wiring and printed wiring boards (pwbs) that are considered critical components
are very commonly used in ITE. A single unit may have multiple manufacturers and types of
each component within it. In an IECEE CB Report, is it acceptable to identify these critical
components by technical information (e.g., electrical ratings, flame class) and reference standard
/ E" b- B+ _, |, x  Y9 v0 G. ?3 donly, and not include manufacturer’s name and type number for each component?
. h9 Z5 f2 @, J8 T" L- g/ LDecision:
9 |/ _$ V$ w* V) s4 C  U7 _For general insulated wiring and printed wiring boards (pwbs) that are considered critical
components, it is acceptable to identify these components in the CB Report by technical
information (e.g., electrical ratings, flame class) and reference standard only, and not include
manufacturer’s name and type number for each component.
For wiring and pwbs subjected to special requirements beyond the normal requirements applied to
. ~( v) k8 w. b% [* Qall these types of components, such as multi-layer wire investigated to Annex U, or coated pwbs
# o2 d9 D' w7 \' f. Z/ g- @9 binvestigated per 2.10.6, the specific manufacturer and type of the component should be controlled
# Z6 O! S( q# I: b5 n; ^) {5 X% Z: bin addition to the technical information.
0 Q+ r  y5 {5 _, O- d' m* k