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

Moisture resistance

15.1.2 ! F& {; @% x/ F

60335-1(ed.3)

( u0 v' N( F7 }# {Question:
' V( g# {, S. G8 A+ w( PWhat are the test conditions for appliances that are normally ceiling mounted ?
0 V% c- v) U0 g# ARationale:
2 U+ x! M2 Y* n% J1 NSee question.
/ V! a; `1 Q" c8 M/ Z- TDecision:
5 y' b7 D5 q6 k8 K. s& ^% ^' [Ceiling mounted appliances are mounted in accordance with IEC 60335-1/1991, sub-clause
15.1.2, as for appliances fixed to a wall. Ceiling mounted appliances are mounted in their
8 J2 H# u( j. O* Foperating position. The rear part shall be covered and sealed around the mounting plate.
The 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,
$ \9 B% o% E. H% x( S6 C9 _' @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.
5 s) P8 Q3 ^3 a( B1 sIPX2 requirements are not applicable for ceiling mounted appliances.

" A. j* q, l. l( M  Z% U3 f( K6 @5 k
( i# P) l* B3 Y* V; W