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wwnw_007 发表于 2013-7-19 10:23  # o; _9 P* R% ]+ o# W+ e! v
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？- a3 B; r' s4 Z' Z0 q0 y
a) no deposit of talcum powder in dust-proof luminaires, such that, if the powder were
( X& `9 s, M0 J' U" ^* \conductive, the insulation would fail to meet the requirements of this standard;
6 R6 Z& f: J$ x1 Tb) no deposit of talcum powder inside enclosures for dust-tight luminaires;# K6 h+ y2 o6 u- o) I4 v
c) no trace of water on current-carrying parts or SELV parts where the voltage under load! ~& J# X4 u' C8 E
exceeds 12 V r.m.s. or 30 V ripple-free d.c. or on insulation where it could become a hazard. s2 o" o% Y2 x" Z1 e! Q/ ]5 m
for the user or surroundings, for example, where it could reduce the creepage distances' H1 k% Y$ z" v+ d- B! Z# G) T9 Z
below the values specified in Section 11;. }/ Z& I( }# g: V; c+ T0 j* _
d) 1) For luminaires without drain holes, there shall be no water entry.
$ U! |6 R) _7 P$ s3 c6 eNOTE Care should be taken not to mistake condensation for water entry." u4 N* I, I. t/ [4 j
2) For luminaires with drain holes, water entry including condensation is allowed during the
* Q, x- D7 k; b8 F$ Rtests if it can drain out effectively and provided it does not reduce the creepage and0 t3 p& X4 W. u1 ~6 ^& L
clearance distances below the minimum levels specified in the standard;
5 Q, R1 j' O0 `2 M1 E8 E# Z* {, Pe) no trace of water entered in any part of a watertight or pressure watertight luminaire;
1 R* _0 q H$ Y- @; M& c g1 S1 V# sf) no contact permitted with live parts by the relevant test probe for first characteristic0 C! F* I# _: z- e. P
IP numeral 2;' \! U" D; f. E! H
no entry into the luminaire enclosure by the relevant test probe for first characteristic
! A6 p6 G# e: ?4 D3 ~ x" nIP numerals 3 and 4.6 D1 `4 A( l0 w, |( m
For luminaires with drain holes in accordance with 4.17 and luminaires with ventilation slots
5 N4 M; Y& K8 n( mfor forced cooling, no contact with live parts is permitted through the drain holes and
9 X6 x2 W. N( Q8 ?4 Oventilation slots with the relevant test probe for the first characteristic IP numerals 3 and 4;
6 _' G! y3 V- Eg) no trace of water on any part of a lamp requiring protection from splashing water as1 O5 p; ]& [3 F9 P8 p
indicated in the “informations for luminaire design” section of the applicable lamp standard;
" Q5 W6 P# w; s- S/ Ph) no damage, for example, cracking or breakage of a protective shield or glass envelope,) V. p* D. t; S; c" ~: h) v/ u
such that safety or protection against the ingress of moisture is impaired. |
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