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标题: DSH 624/07 Humidity test requirements [打印本页]
作者: 小米    时间: 2012-11-6 14:16
标题: DSH 624/07 Humidity test requirements
DSH 624/07
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Humidity test requirements/ l  _6 j6 ^7 N- a
Various
5 \$ y7 ]. ]1 E: t		60335-1(ed.4);am1;am2 & 61010-1(ed.2) & 60601-1(ed.3) & 60950-1(ed.2) & 60065(ed.7);am15 z- `$ y9 {  K9 p6 y, l
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Standard(s): IEC 60065/2001
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IEC 60950-1/2005
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IEC 61010-1/20013 v; O( b; n. d1 K% ~: j9 Y. j
IEC 60335-1/2001
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A2/20065 O& e3 @1 P% I$ |* m2 ]
Sub clause(s): Various: `- i  _1 a( j5 c; B% {' D6 H
Sheet N°: 624/07
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Subject(s): Humidity test( c4 A0 Q" |; I6 t& Q; T/ P
requirements
6 f+ S' C5 |; A5 B7 n% BKey words:
. o8 M6 W4 \: d! M$ ^5 r: c- 93% RH
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  h3 s, w) J3 X2 |- 20 – 30°C
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Decision confirmed
, [( h# O% v( T; ?; A# Sat 45th CTL meeting& H1 n3 {$ H$ D. T9 E& \& g: }
Question: Various IEC standards have requirements for humidity/temperature: ~, U# v; {# z$ |
conditioning, but have different specifications for the test conditions.- l# h5 O9 C4 D; ^5 U: e. V( E
IEC 60065 – 93 +2%/-3% (t 30°C +0/-2°C)2 S- n' D2 o+ k
IEC 60950-1 – 91% - 95% (t 20-30°C +/-1°C)
  Q3 S3 M& D9 D0 {  IIEC 60601-1 – 93 + 3%/-3% (t 20-30°C)' v0 Y3 r: I$ D9 y
IEC 61010-1 – 92,5 + 2,5%/-2,5% (t 40°C +/- 2°C)
9 h; {6 D' T9 p' l, `8 b' rIEC 60335-1 – 93 + 3%/- 3% (t 20-30°C +/-1°C)2 \5 F7 F0 K3 M
There does not seem to be a technical justification for the differences in the) N5 r) U7 y, x2 o2 R2 t
specifications.
' u" \  ]4 z; i7 e$ ~) iAccordingly, it is suggested and recommended that the humidity/temperature
2 f/ I& a8 \$ w$ f2 L' T( y' Jspecifications in the above standards be consistent.
# `/ R7 x8 `8 g, NDecision: The chamber is to be set at 93% RH, with +/-3% RH tolerance, at a convenient+ J; h) j9 c7 H# M0 e& O- C/ r
temperature between 20°C and 30°C, but the chosen temperature to be kept
: P% o) p9 N$ S  \: bwithin +/- 2°C during the test.
: T* Z% S) V3 o! x) o* MThe standard specifications for the humidity are to be met at the: n' Q# C' r( O) r3 _/ X
reference/measuring point, where the controlling humidity sensor is located.
! C" v3 z3 I0 L9 z$ xThe tolerances permitted in CTL DSH 251A (+/-6% RH) are allowed in other. e: @9 n: B$ ?% h4 l. U) \
parts of the humidity chamber, away from the reference point.
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