IP3X防固体异物的判断

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hzj101988 发表于 2012-10-1 21:18
9 T0 @- Y2 a/ v; Q国标是没有规定排水孔大小、形状的吧！能排水即可！比如IPX4的话 你1mm的网状排水孔也不好开啊，开模太难 ...

9 O5 T9 {: P2 K) C+ H( A我之前的回复有问题，见盖云房兄的回复

tsunn

好帖，带防水孔和不带防水孔判据不一样。
" c) v" j' e( g% i- e另外问一下，IPX4测试后，灯泡上面有水珠，带电部件没有水珠，符合要求吗？

sdxiaomuyu

学习学习。

jjlamshushushu

tsunn 发表于 2013-7-18 16:26
好帖，带防水孔和不带防水孔判据不一样。
另外问一下，IPX4测试后，灯泡上面有水珠，带电部件没有水珠，符 ...

IPX4测试后，灯泡上面有水珠，带电部件没有水珠，符合要求

tsunn

jjlamshushushu 发表于 2013-7-18 17:01
5 v! |8 U& ~8 a) J8 A7 pIPX4测试后，灯泡上面有水珠，带电部件没有水珠，符合要求

实际使用中，随着时间的增加，灯泡上的水珠越来越多，多到一定程度它会沿着灯泡渗入到灯座里面呀，那样不是很危险？

520168

IPX4测试后，灯泡上面有水珠，不符合要求。已经和LCIE确认过了。

520168

有些灯泡发热淋到水就会爆。

tsunn

520168 发表于 2013-7-18 17:32
IPX4测试后，灯泡上面有水珠，不符合要求。已经和LCIE确认过了。

有没有文件支持，求分享。

wwnw_007

请查看标准IEC60598-1：2008第9章节，关于淋水测试的相关要求，明确规定灯泡上不得有水迹。由于标准很长时间没有查看，我的描述有误，特此更正说明：灯泡上有水迹否，与灯具的具体安装位置相关的，如柱灯。针对此问题，好早前与某知名机构经理交谈过，标准没有明确规定灯泡上不得有水迹，但是实际操作时检测人员会考虑灯具安装位置的。
2) For luminaires with drain holes, water entry including condensation is allowed during the
tests if it can drain out effectively and provided it does not reduce the creepage and
3 M+ y* H4 Q$ s+ L, tclearance distances below the minimum levels specified in the standard。

tsunn

wwnw_007 发表于 2013-7-19 10:23
请查看标准IEC60598-1：2008第9章节，关于淋水测试的相关要求，明确规定灯泡上不得有水迹。

( q" G1 M" c: j/ l, Z你说的明确规定，那请问是哪一条？
a) no deposit of talcum powder in dust-proof luminaires, such that, if the powder were
conductive, the insulation would fail to meet the requirements of this standard;
/ b# s/ E9 I$ Cb) no deposit of talcum powder inside enclosures for dust-tight luminaires;
c) no trace of water on current-carrying parts or SELV parts where the voltage under load
exceeds 12 V r.m.s. or 30 V ripple-free d.c. or on insulation where it could become a hazard
) N! C' b) n% I5 k' vfor the user or surroundings, for example, where it could reduce the creepage distances
3 s# S! h7 k2 M6 S# d5 ^  z  abelow the values specified in Section 11;
d) 1) For luminaires without drain holes, there shall be no water entry.
NOTE Care should be taken not to mistake condensation for water entry.
! D8 @- Q5 u2 o" Q; }2) For luminaires with drain holes, water entry including condensation is allowed during the
tests if it can drain out effectively and provided it does not reduce the creepage and
1 f. e  C; P( p/ n' n3 Y# a: zclearance distances below the minimum levels specified in the standard;
e) no trace of water entered in any part of a watertight or pressure watertight luminaire;
f) no contact permitted with live parts by the relevant test probe for first characteristic
2 b8 V6 Z& r& T  ^2 qIP numeral 2;
no entry into the luminaire enclosure by the relevant test probe for first characteristic
3 u; D! M' ~, `" C2 j# e0 ~/ V4 [IP numerals 3 and 4.
For luminaires with drain holes in accordance with 4.17 and luminaires with ventilation slots
! |- l, E7 z: W! Z7 K9 ]. k; k" ^for forced cooling, no contact with live parts is permitted through the drain holes and
ventilation slots with the relevant test probe for the first characteristic IP numerals 3 and 4;
g) no trace of water on any part of a lamp requiring protection from splashing water as
indicated in the “informations for luminaire design” section of the applicable lamp standard;
h) no damage, for example, cracking or breakage of a protective shield or glass envelope,
such that safety or protection against the ingress of moisture is impaired.