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wwnw_007 发表于 2013-7-19 10:23 
! Y1 w) i% p: y! L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。
你说的明确规定，那请问是哪一条？
) W7 n P( P0 e+ ?a) no deposit of talcum powder in dust-proof luminaires, such that, if the powder were" {- W7 Q% U3 s7 C! o. j
conductive, the insulation would fail to meet the requirements of this standard;
1 }! g6 W `( u" B9 n" C! pb) no deposit of talcum powder inside enclosures for dust-tight luminaires;
, c- T4 ]5 Y" }" m& J" hc) no trace of water on current-carrying parts or SELV parts where the voltage under load9 K6 W1 B E9 e! a% z
exceeds 12 V r.m.s. or 30 V ripple-free d.c. or on insulation where it could become a hazard
% R' [$ H5 V3 lfor the user or surroundings, for example, where it could reduce the creepage distances/ d' M. E# r5 l) F1 _/ a) A5 A$ S
below the values specified in Section 11;) a- `0 L, v7 A) X
d) 1) For luminaires without drain holes, there shall be no water entry.
$ N6 T/ h' B& eNOTE Care should be taken not to mistake condensation for water entry.
8 N+ @/ d$ _/ C4 M2) For luminaires with drain holes, water entry including condensation is allowed during the
. \6 a+ Z$ E8 F- Ntests if it can drain out effectively and provided it does not reduce the creepage and
& m* ?4 v' P7 X) Dclearance distances below the minimum levels specified in the standard;: b: L- u: {$ S! T7 k# a
e) no trace of water entered in any part of a watertight or pressure watertight luminaire;% _* v( n% _( { W" u$ R2 H! ^2 g
f) no contact permitted with live parts by the relevant test probe for first characteristic* B0 a) A) T/ m' k$ s
IP numeral 2;% ^; h& k6 K4 a- t9 J. e1 M
no entry into the luminaire enclosure by the relevant test probe for first characteristic/ r; c$ N: s4 M3 O" ~8 K% o" c
IP numerals 3 and 4.: g6 p2 d- U* f; `; _$ y) |# a
For luminaires with drain holes in accordance with 4.17 and luminaires with ventilation slots2 o; I6 n% w7 t
for forced cooling, no contact with live parts is permitted through the drain holes and3 z# l" t6 e+ y6 I L, @
ventilation slots with the relevant test probe for the first characteristic IP numerals 3 and 4;
. D! W7 b& Y! Z0 n, fg) no trace of water on any part of a lamp requiring protection from splashing water as; j+ _. v7 f5 p* Z, R0 I9 X9 D
indicated in the “informations for luminaire design” section of the applicable lamp standard;- I: B2 q# |" f9 ^- z b( X3 f
h) no damage, for example, cracking or breakage of a protective shield or glass envelope,/ s D) k4 @0 M' f0 D+ u! s
such that safety or protection against the ingress of moisture is impaired. |
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