DSH 524 Identification of Critical Components – Minimum description criteria

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DSH 524 ) r3 m* ?4 C) l3 H

Identification of Critical Components – Minimum description criteria & x# ^1 C# Q: z6 Q

1.5.1

60950-1(ed.1) & 60950(ed.3) 7 G( W0 V/ R* y

Standard:
IEC 60950 (1999) 3rd ed., IEC
$ V2 A6 L/ o4 r& _# K$ N, Y60950-1, 1st Ed. (2001)
Sub clause:
1.5.1
3 G" E+ f9 S- R6 |! w3 C  u& iSheet No.
1 [! J9 o6 }: w+ D& @$ A524
4 x2 P9 u/ t8 M5 TSubject:
6 S& |# l8 x  T# Y2 h/ }Identification of Critical
* J: n! t0 o3 i2 x. v9 LComponents – Minimum
# B& S5 _$ @0 A2 j" x3 Edescription criteria
Key words:
( T: y7 ~1 T) D1 g2 [Components
Decision taken at the 40th
* L. X: D1 s/ `) ameeting 2003
5 D0 c7 [( ~, I, EQuestion:
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
1 C# }) X* ?+ V9 d2 teach 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
' l! C- _+ S8 z( T" z# Lonly, and not include manufacturer’s name and type number for each component?
) B6 K$ `/ K9 o1 R; w5 ]Decision:
6 z& d. q8 Y! TFor general insulated wiring and printed wiring boards (pwbs) that are considered critical
! w' a, a4 _: ~components, it is acceptable to identify these components in the CB Report by technical
) r- |$ m% K  ]: w: Iinformation (e.g., electrical ratings, flame class) and reference standard only, and not include
manufacturer’s name and type number for each component.
  W/ `8 [& L' Y; X4 q6 j6 f; ^For wiring and pwbs subjected to special requirements beyond the normal requirements applied to
$ T4 U% B& [; b- S8 M' call these types of components, such as multi-layer wire investigated to Annex U, or coated pwbs
/ H5 I/ |2 t' U% t/ ?investigated per 2.10.6, the specific manufacturer and type of the component should be controlled
in addition to the technical information.
  N# ~. ]( u4 w- E1 K4 {