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| Temperature Tests
, Z$ s, A9 R) `* ?, v; S | 9.2
S4 a( i- u) Y5 H( h! z | 61010-1(ed.1);am1;am2/ A4 L5 L6 S, q, @# O# s" q- Z% Q
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8 X# U+ E) I0 f p* ^/ b$ X `: nStandard:
1 j" s8 Z$ Z! G: j* J. P$ OIEC 61010-1:1990 +A1:1992 + A2
) W. q1 [; x8 E% ?/ L:1995
% o+ q) u7 g( {Sub clause:
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Sheet n. 335
) |- J9 F& N. c5 APage 1(1)
' Q) W V8 b6 Z+ V, n5 `Subject:
5 e- T, Z" Z5 @+ sTemperature tests2 ~- P- r8 F8 b/ H
Key words:
: s5 a* p- Z- ~* jSteady state
0 m. z# C6 D8 x2 RDecision n. 23 taken at
2 d% ]7 N; M& I |$ r z$ F- b37th meeting/2000
$ j( T1 N$ V% K) h A% X- ^Question:
0 C5 L; B/ b2 ?/ W- M$ _, kIn sub-clause, in 1st paragraph, what is meant by “steady state”?
, l1 p( i( j% h( s4 NShould this term be defined?
; e2 ~% v) M1 x4 D8 D! J( j6 `Decision:8 r- X$ ]* R5 e6 C3 i7 H, \6 `' P
Steady state is not defined in IEC61010-1. It has been agreed that where the
) u( Y' a# @. X$ ~4 Ctemperature rise is not greater than 2°C in 1 hour then it is reasonable to conclude that
/ f3 }( X! s) \steady state has been achieved. This limit is used in other safety standards for example& u) l; C9 X+ O: G' \
IEC60601-1.5 i W8 w) U' Y# k, G! @
Explanatory Notes:6 {- S7 {5 ~$ Z- Y. K
A part is regarded as having reached steady state temperature when the temperature rise over
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9 Q5 u- F7 l) i$ C# g! K3 `; along period is almost negligible. The 2°C rise in 1 hour is considered a reasonable limit5 T' X- L2 _6 Q5 p( [ D
for this purpose., W) e5 o3 ^3 j9 X$ @; Z: L
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发表于 2012-9-19 13:49
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