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& p6 V$ M5 b1 C0 @5 E& q3 [: U$ s) o) S0 g, r3 p! w
| Temperature Tests
\5 e0 r# _" e! \ V( }; T | 9.29 |# R n4 d( t
| 61010-1(ed.1);am1;am2
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Standard:
$ |- ]8 z D- r, I" y% i( cIEC 61010-1:1990 +A1:1992 + A2
$ U- e6 e0 S) T3 s4 S0 b:1995 R( p3 X7 y1 @1 A4 ~
Sub clause:" M9 i: [1 z+ a9 ^6 S
9.2
; y6 D1 u8 ~; Y6 Y# sSheet n. 335+ \; e3 Y0 [, w) N' M5 P) g z
Page 1(1)
$ X' _( @8 O* `) LSubject:
+ N" H$ b# |, g( Q9 ~# I' HTemperature tests
& _+ A7 I' I# v3 T! x" XKey words:- h7 m8 j# n* s
Steady state' T. S3 n- p& c4 Z4 w
Decision n. 23 taken at) ~, b6 u l$ } d
37th meeting/20006 f* p9 Y$ y, Y* k: i8 [' P
Question:1 e2 T$ \: E9 p% u4 h( U! n, H
In sub-clause, in 1st paragraph, what is meant by “steady state”?
0 v5 v( Y# y5 L, T( T% DShould this term be defined?
- Y) g9 V6 b( _- R! qDecision:
+ {- F' y( f- U7 E6 mSteady state is not defined in IEC61010-1. It has been agreed that where the, U. L8 d- U9 a' a
temperature rise is not greater than 2°C in 1 hour then it is reasonable to conclude that
6 C! `" z6 J" fsteady state has been achieved. This limit is used in other safety standards for example
) L- `- Z* o- B# GIEC60601-1.
9 b. T: F5 ~" LExplanatory Notes:
0 k/ K" w2 A ~1 VA part is regarded as having reached steady state temperature when the temperature rise over; T D; K: @+ k) b' l, O
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long period is almost negligible. The 2°C rise in 1 hour is considered a reasonable limit
9 I3 C" j% K& f& I7 z* r' _for this purpose.( V9 R1 m" H R, _
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发表于 2012-9-19 13:49
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