DSH 524 Identification of Critical Components – Minimum description criteria

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DSH 524

Identification of Critical Components – Minimum description criteria

1.5.1

60950-1(ed.1) & 60950(ed.3) 4 ~* e4 s* S. F

Standard:
IEC 60950 (1999) 3rd ed., IEC
60950-1, 1st Ed. (2001)
Sub clause:
8 x1 O& ^2 ?- S4 Z- L1.5.1
Sheet No.
524
+ a; e+ Y7 L; g. d4 eSubject:
2 m7 e9 d& g/ Q% A4 p& VIdentification of Critical
' x8 K4 c+ e/ U+ M9 P# UComponents – Minimum
description criteria
Key words:
: j, c! A' y7 _' k- NComponents
Decision taken at the 40th
meeting 2003
Question:
General insulated wiring and printed wiring boards (pwbs) that are considered critical components
' c+ l  m- Q1 O3 I6 A. eare 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
) Y1 {" d8 n$ Conly, and not include manufacturer’s name and type number for each component?
5 W4 U5 \2 L4 E- @2 QDecision:
5 H- p( t/ J; }1 R8 ~For general insulated wiring and printed wiring boards (pwbs) that are considered critical
2 Q. p* P' D0 `' H/ _$ F* T# [6 s: }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
all these types of components, such as multi-layer wire investigated to Annex U, or coated pwbs
, j; f: f. u, _; C% K- z' @- l+ Hinvestigated per 2.10.6, the specific manufacturer and type of the component should be controlled
in addition to the technical information.
  I) a+ S" P2 P' W+ Q: Q* L6 j