DSH 508 Moisture resistance

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 508 * g" n& Z4 `( t/ h6 g2 T

Moisture resistance

15.1.2 % ?4 O, O, m) P7 ?/ r9 Q

60335-1(ed.3)

1 q0 X; `* I, [& p3 i( _) |Question:
What are the test conditions for appliances that are normally ceiling mounted ?
1 f$ {0 R& c/ [& K; l% P% TRationale:
7 d/ O# R+ P; {  v! W, z4 B+ vSee question.
Decision:
Ceiling mounted appliances are mounted in accordance with IEC 60335-1/1991, sub-clause
" o8 j9 W! Z4 O* ]15.1.2, as for appliances fixed to a wall. Ceiling mounted appliances are mounted in their
9 C% \+ w' b* i( [& foperating position. The rear part shall be covered and sealed around the mounting plate.
9 B* |+ C0 g2 R, c. M' x$ C- WThe requirements for IPX4 are checked in accordance with IEC 60529, sub-clause 14.2.4.
The requirements for IPX3 are checked in accordance with IEC 60529, sub-clause 14.2.3,
but the oscillating tube is oscillated as for IPX4, detailed in IEC 60529, sub-clause 14.2.4.
Alternatively, IPX3 and IPX4 requirements can be made using figure 5 of IEC 60529.
IPX2 requirements are not applicable for ceiling mounted appliances.

3 ]% _% D( l) ]4 @: B7 {