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| Temperature Tests0 q' X. m; P4 E5 S
| 9.27 ~8 X8 C D" V: J: A. }
| 61010-1(ed.1);am1;am2
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Standard:
8 ]7 p% n1 b, JIEC 61010-1:1990 +A1:1992 + A2! b! a8 g9 C; C
:1995
( D. [7 R& Q) |9 oSub clause:
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: L6 v a+ h% ~8 z( \0 kSheet n. 335. d0 V. a2 h7 C2 Z# ? y
Page 1(1)$ H. P0 Q/ k" J) W
Subject:
& [6 l6 f0 I6 { d. jTemperature tests4 ~0 n1 m0 L1 e h
Key words:
6 T) F/ d o' h2 O2 H8 b( j0 ^( fSteady state. s h/ @) T. t3 @/ p) B2 F! ^ w
Decision n. 23 taken at9 ^. ^. o1 |' W( R
37th meeting/2000
0 n( f3 V* Z4 V$ [Question:
, Y: s4 k4 C# A) r2 N1 _1 XIn sub-clause, in 1st paragraph, what is meant by “steady state”?
- q) L/ a1 v# L3 C! x3 RShould this term be defined?, ], p# {' f' T) z
Decision:
( d6 J3 k. w2 ]" T" D2 G% fSteady state is not defined in IEC61010-1. It has been agreed that where the3 n0 t0 G# n* W
temperature rise is not greater than 2°C in 1 hour then it is reasonable to conclude that
0 v5 A G0 y/ `% Asteady state has been achieved. This limit is used in other safety standards for example" S' Y) j$ d; x G; {
IEC60601-1.: i; W) D0 j" O) U, t
Explanatory Notes:# ? `. a1 e8 j0 R/ ^9 B) r$ X
A part is regarded as having reached steady state temperature when the temperature rise over ~7 A9 P9 J( f8 x( N( k$ [' W
a
; T# I) X/ O$ Y9 z4 m3 H8 Along period is almost negligible. The 2°C rise in 1 hour is considered a reasonable limit0 ]7 q/ ^) k! }9 L4 Y$ S
for this purpose.' J3 e: Q. [9 y$ I, [4 P. ]+ m8 x
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