DSH 577 Construction

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 577 ( B) ~2 \7 y( }8 o + |: h3 N* c( ~+ W1 O* g

Construction

22.33 1 x3 O. ]! ~. B. [

60335-2-105(ed.1) ! R3 h: ]6 u1 S; J2 C/ v# Y+ u

Question:
Performing the a test on multifunction shower cabinet with a vaporiser according to IEC 60335-2-105 requirements, level sensor of the vaporiser is in a direct contact with water as well as earthed metal enclosure of a vaporiser. According to the requirement of-sub-clause 22.33 conductive liquids which are accessible in normal-use shall not be in direct contact with live parts. Any energized part is considered to be a live part regardless of the voltage. Level sensor is connected to SELV parts over »Black Box«.
Since the is some doubts that the actual requirement of the sub-clause 22.33 spatially wording "not be in direct contact with live parts including SELV parts" and "energized" in our case over "Black Box" is fulfilled:
2 J1 z6 \. Y5 A( H- I" r5 h" D6 U0 N0 p( \- Are the parts separated with protective impedance also energized?
& V3 b+ x3 @, d6 V# y! W- Which are the insulation requirements for "Black Box"?
2 R2 q3 p0 _* i) [% uDecision:
This construction is acceptable if only vapour is in contact with the people inside the cabinet.
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