DSH 422 Temperature limit applied part

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DSH 422

Temperature limit applied part " z. s- d5 o0 t, e

42, 42.3 ! o! M* T! r" o6 S+ ^' ]

60601-1(ed.2);am1;am2 & V& p* z- J3 R2 r; B: |0 l8 q

; r! W  U# x$ v: [3 O1 P  G4 C* qStandard(s)- (year and edition):
; _, ~' [. x/ u5 B5 lIEC 60601-1:1988 Ed.2 Am1+Am2
Sub clause(s): 42, 42.3
Sheet n°: DSH-422
Subject: Temperature limit applied part
Key words: Temperature limit, applied part, ambient.
8 @& K+ e: p. r: j7 T9 a+ @8 xConfirmed by CTL at its 39th meeting, in Cologne
2 W+ ?4 k1 }* {Question:
& h0 {9 ]$ t* _% b, p. [) e7 DIt is not clear at what ambient temperature the limit of 41 °C should be applied. The
temperature range of 10 °C to 40 °C stated in Sub-clause 10.2 applies to Table Xa and would
appear to apply in this instance. Is a 1 °C temperature difference correct or realistic?
Decision:
When not otherwise specified by the manufacturer, the limit of 41 °C at an ambient
temperature of 40 °C must be applied in NORMAL CONDITION or SINGLE FAULT
/ j$ f* W. x, p- {( Y$ aCONDITION except were there is a medical justification for a higher limit/temperature rise.
4 ?. ?  ~. u6 p- LThis requirement should be addressed in Particular Standards.
( f& v2 W# i. _$ |
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