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wwnw_007 发表于 2013-7-19 10:23 0 S; o! I; a+ E! S5 [! U; C
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。
; \) f; A- `2 v+ b. n你说的明确规定,那请问是哪一条?
: ]( n6 `* O% S I p/ B0 ^/ ra) no deposit of talcum powder in dust-proof luminaires, such that, if the powder were
" o' f( @) j9 c& y, @6 y1 D3 w( bconductive, the insulation would fail to meet the requirements of this standard;% ~# |6 f2 l8 y q) t E. f4 ~6 t5 G
b) no deposit of talcum powder inside enclosures for dust-tight luminaires;
0 l8 w$ e6 t& E( E U& A! O- W# dc) no trace of water on current-carrying parts or SELV parts where the voltage under load
3 Q, K: {& y: U+ ?exceeds 12 V r.m.s. or 30 V ripple-free d.c. or on insulation where it could become a hazard
6 k+ z' p, }' n6 k% L) Y1 wfor the user or surroundings, for example, where it could reduce the creepage distances
. ?3 v) R( r# O6 s: N& Ebelow the values specified in Section 11;
! {# ?, v: W$ c$ k# sd) 1) For luminaires without drain holes, there shall be no water entry.7 f" Z. i% z, H( \. E
NOTE Care should be taken not to mistake condensation for water entry.! c# g7 _: g. ?: ?
2) For luminaires with drain holes, water entry including condensation is allowed during the" g' f: q) E( t' a4 R1 O
tests if it can drain out effectively and provided it does not reduce the creepage and
( F z+ W* d7 N l! dclearance distances below the minimum levels specified in the standard;
5 h! a) J, a' s" A* B6 p5 d6 J" Fe) no trace of water entered in any part of a watertight or pressure watertight luminaire;
0 z0 R! u6 I6 Z# ~+ wf) no contact permitted with live parts by the relevant test probe for first characteristic' G, I5 d, h9 [; ~
IP numeral 2;
& s1 W6 P9 Y" t2 Z* pno entry into the luminaire enclosure by the relevant test probe for first characteristic* n8 W! W7 c2 H0 f% J
IP numerals 3 and 4.4 Q" S. V! r+ k0 m* ~7 r9 ?
For luminaires with drain holes in accordance with 4.17 and luminaires with ventilation slots
2 l/ S8 B8 D8 m: Gfor forced cooling, no contact with live parts is permitted through the drain holes and
( P9 P" Z( [/ a D( z+ _ventilation slots with the relevant test probe for the first characteristic IP numerals 3 and 4;
" |7 y# f' j" R& [g) no trace of water on any part of a lamp requiring protection from splashing water as% M+ B% s% u9 ]4 f! [# K
indicated in the “informations for luminaire design” section of the applicable lamp standard;! H" f: o! w# P' y# R
h) no damage, for example, cracking or breakage of a protective shield or glass envelope,1 Z: K# N* c5 D4 R+ @
such that safety or protection against the ingress of moisture is impaired. |
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