DSH 524 Identification of Critical Components – Minimum description criteria

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DSH 524 - W/ b0 l8 i- `

Identification of Critical Components – Minimum description criteria 2 k# M) |  [4 g0 e: y# c: F

1.5.1 6 U' X) D- ]4 O- `2 q* U* h

60950-1(ed.1) & 60950(ed.3) % p7 B: [4 Q2 b9 l) c5 x' L7 {! W( l

Standard:
- F; q  K, V6 }9 E! ~% QIEC 60950 (1999) 3rd ed., IEC
60950-1, 1st Ed. (2001)
. J& h" Z. ]3 o5 jSub clause:
0 g+ s+ X2 a/ {3 l* Q2 t1 }1.5.1
  s+ f$ I( m! b8 USheet No.
$ o1 n8 T" G& j3 _  D* n% x524
Subject:
6 s" ]: H" k& bIdentification of Critical
Components – Minimum
/ l; r3 x/ k& q* edescription criteria
Key words:
Components
Decision taken at the 40th
meeting 2003
+ \" K% h' W# S, K- M2 M  pQuestion:
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
6 `# \" A" |! `" P! `% f; V) y4 beach 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
) O7 h' e8 k- Z/ m" M" oonly, and not include manufacturer’s name and type number for each component?
  p; c2 `4 ^+ ]) S9 }Decision:
For general insulated wiring and printed wiring boards (pwbs) that are considered critical
4 J! P: N! `+ b0 i6 K& s/ Ccomponents, 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
# y$ i0 X- J, cmanufacturer’s name and type number for each component.
7 H1 T' d& ?# iFor 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
investigated per 2.10.6, the specific manufacturer and type of the component should be controlled
+ N3 m; f( o# Z$ ~3 n9 vin addition to the technical information.
. f9 z& Q# J: k: R
+ J4 T; Y5 q8 s% y
7 K/ M/ ], X4 V5 H+ H, _