DSH 624/07 Humidity test requirements

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小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

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自动卷线器试验机

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GB1002插头量规

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IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

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DSH 624/07

Humidity test requirements ) e. x1 f# R5 S/ r% I1 k

Various 3 b# s4 T# k& o

60335-1(ed.4);am1;am2 & 61010-1(ed.2) & 60601-1(ed.3) & 60950-1(ed.2) & 60065(ed.7);am1

Standard(s): IEC 60065/2001
A1/2005
IEC 60950-1/2005
IEC 60601-1/2005
, Q8 c) X5 x: \IEC 61010-1/2001
IEC 60335-1/2001
A1/2004
( O" K- U7 L0 ?A2/2006
Sub clause(s): Various
Sheet N°: 624/07
  W% J) ]+ B/ M4 ?$ b8 H2 u; sCTL-WG4
Page: 1(1)
Subject(s): Humidity test
requirements
Key words:
! r& |/ N, q* D- 93% RH
' g: m, z: Q) k- f, g* e+ o1 h6 C$ j- +/-3% RH tolerance
8 E9 G( q# U: I" _4 y2 [- 20 – 30°C
, P0 v' Z) G3 O6 j2 _. P$ r2 O* ~Meeting:
# E, w% D9 b8 |/ L; h* I. y2 cDecision confirmed
at 45th CTL meeting
6 V0 ~; h+ c6 B  Y( f8 C% |Question: Various IEC standards have requirements for humidity/temperature
conditioning, but have different specifications for the test conditions.
IEC 60065 – 93 +2%/-3% (t 30°C +0/-2°C)
IEC 60950-1 – 91% - 95% (t 20-30°C +/-1°C)
4 l1 ]2 d; u# m( D* M% Y2 \; w$ QIEC 60601-1 – 93 + 3%/-3% (t 20-30°C)
IEC 61010-1 – 92,5 + 2,5%/-2,5% (t 40°C +/- 2°C)
IEC 60335-1 – 93 + 3%/- 3% (t 20-30°C +/-1°C)
% ]3 }" Z( i+ TThere does not seem to be a technical justification for the differences in the
specifications.
Accordingly, it is suggested and recommended that the humidity/temperature
6 ~5 s; e( g& h  I; ]( Jspecifications in the above standards be consistent.
3 E7 L- t# X5 ]+ C, q& UDecision: The chamber is to be set at 93% RH, with +/-3% RH tolerance, at a convenient
% I. C5 X3 F- a2 {temperature between 20°C and 30°C, but the chosen temperature to be kept
2 v' q) K' ?$ G6 `: rwithin +/- 2°C during the test.
The standard specifications for the humidity are to be met at the
reference/measuring point, where the controlling humidity sensor is located.
- i$ f, ]* _. U. o! IThe tolerances permitted in CTL DSH 251A (+/-6% RH) are allowed in other
parts of the humidity chamber, away from the reference point.

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