DSH 624/07 Humidity test requirements

小米

广东安规检测
有限公司提供：

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

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

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

DSH 624/07 8 u7 f7 K& ~) `4 u- \. f$ K

Humidity test requirements

Various , _. m6 G! l( E% U

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

7 M: X; y6 e4 O2 N$ Z$ {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)
; s, ]; Z- E( [5 G- YIEC 60950-1 – 91% - 95% (t 20-30°C +/-1°C)
; |) F% |3 i6 d) F' @. E+ Z3 \8 k$ gIEC 60601-1 – 93 + 3%/-3% (t 20-30°C)
IEC 61010-1 – 92,5 + 2,5%/-2,5% (t 40°C +/- 2°C)
' q, M9 l6 j, a) `IEC 60335-1 – 93 + 3%/- 3% (t 20-30°C +/-1°C)
$ D& B1 E, d" q: ]* X) ]: @1 BThere does not seem to be a technical justification for the differences in the specifications.
Accordingly, it is suggested and recommended that the humidity/temperature specifications in the above standards be consistent.
7 X: y5 Y$ _! l. x# r" ]8 Y7 mDecision: The chamber is to be set at 93% RH, with +/-3% RH tolerance, at a convenient temperature between 20°C and 30°C, but the chosen temperature to be kept within +/- 2°C during the test.
3 v, i6 J/ u# _% |. aThe standard specifications for the humidity are to be met at the reference/measuring point, where the controlling humidity sensor is located.
; ^1 e, m' p7 n" EThe tolerances permitted in CTL DSH 251A (+/-6% RH) are allowed in other parts of the humidity chamber, away from the reference point.


2 L) i, `+ x8 K( [
: X0 y' t3 d- h. b$ o2 c
4 ~; j3 V& ?0 t: Z) C: |5 C