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 5 b( V1 C. B5 Q, M" _

Moisture resistance

15.1.2 ( S, d0 z9 [( L' V

60335-1(ed.3) : l. c$ M) W. S+ }4 l3 y1 c

/ ]; `/ a/ C6 x8 e4 y' L! kQuestion:
  O7 E' U* u, N( f4 \What are the test conditions for appliances that are normally ceiling mounted ?
1 ^3 ]! c" C! N6 WRationale:
See question.
) T2 O, Q$ a8 W0 s% k% CDecision:
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 O8 s2 f* d% J! g; xoperating 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 j) m$ r0 A6 Q7 k1 u6 t4 ~4 Abut 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.
; E" K! E" x5 h% vIPX2 requirements are not applicable for ceiling mounted appliances.
% M3 `* T# l+ M8 K9 j4 ]3 v

; |  C  V2 a5 g+ d6 L