DSH 524 Identification of Critical Components – Minimum description criteria

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DSH 524 ' _1 O# V' n& K8 l8 _2 c) o. A( a. e1 k ' [5 X/ n% I5 B2 W0 ^2 K0 n) H

Identification of Critical Components – Minimum description criteria

1.5.1   B  j+ V3 r/ f( n5 T

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

) q7 A6 @$ l& ?% YStandard:
2 g. m0 ?. y/ Q6 t+ k2 x$ WIEC 60950 (1999) 3rd ed., IEC
! \, |. p# h9 M" r/ n60950-1, 1st Ed. (2001)
Sub clause:
1 J! d6 r' w! `3 r2 l' L' ~1.5.1
Sheet No.
. p2 n3 N% C4 I5 E3 q9 i524
, b# O, E8 a( \* I0 T3 MSubject:
Identification of Critical
Components – Minimum
description criteria
- E+ f5 T3 X" |  C% |Key words:
Components
Decision taken at the 40th
% p9 }" h5 M, I& H# y/ f/ n1 M! |; omeeting 2003
3 Y: I) B' f3 e' c" ~Question:
3 |1 W( E# a/ R# s3 vGeneral 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
  w8 A4 M  U; Y! `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
" Z0 ?% C8 G: B5 Q1 l( a# s3 x$ }only, and not include manufacturer’s name and type number for each component?
7 ^" r, C* n: w7 n, k# q- ~& TDecision:
For general insulated wiring and printed wiring boards (pwbs) that are considered critical
' [& Q; F! C2 ]" w7 |! W4 Qcomponents, it is acceptable to identify these components in the CB Report by technical
  ]3 G8 D& `2 ?  ?3 dinformation (e.g., electrical ratings, flame class) and reference standard only, and not include
/ W5 H$ o5 v; u/ k- P' ~manufacturer’s name and type number for each component.
/ }  E( ?9 p! I" `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
4 K: K8 `* G4 V3 Z5 ~& U6 hinvestigated per 2.10.6, the specific manufacturer and type of the component should be controlled
in addition to the technical information.
4 Q2 J! Y4 @* z% e4 ]
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