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wwnw_007 发表于 2013-7-19 10:23 ! r: ]/ Q+ q0 T) `$ t" e, i
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。
! L/ E* F4 c! q% l! |4 M你说的明确规定,那请问是哪一条?$ C/ E! S6 I& z& N
a) no deposit of talcum powder in dust-proof luminaires, such that, if the powder were& X3 o0 g- S8 S0 V4 v/ B# T
conductive, the insulation would fail to meet the requirements of this standard;0 L" t5 T# K( J8 T
b) no deposit of talcum powder inside enclosures for dust-tight luminaires;: `3 @* N$ T. @# O- {7 h4 ?$ w
c) no trace of water on current-carrying parts or SELV parts where the voltage under load8 t& ]% ^" t4 D5 s" `* E
exceeds 12 V r.m.s. or 30 V ripple-free d.c. or on insulation where it could become a hazard( r5 U1 ?- N0 V. I( _& E. Q5 S
for the user or surroundings, for example, where it could reduce the creepage distances& \- q! S# {, Q1 Q4 A4 q: F
below the values specified in Section 11;- P& u) }/ s+ E7 I1 m
d) 1) For luminaires without drain holes, there shall be no water entry.
, ^0 q% O: k9 w1 z9 `/ WNOTE Care should be taken not to mistake condensation for water entry.* E/ E* C! A' X% x5 z" J3 \. A- u, a
2) For luminaires with drain holes, water entry including condensation is allowed during the* _. x! J" X/ T# Z6 M7 a" b
tests if it can drain out effectively and provided it does not reduce the creepage and
$ D2 l2 m. m! R* D [' D* o) n9 gclearance distances below the minimum levels specified in the standard;
* Y, S& k+ M4 `' z9 Ge) no trace of water entered in any part of a watertight or pressure watertight luminaire;
7 n( c9 L+ e- f2 u% A) o+ zf) no contact permitted with live parts by the relevant test probe for first characteristic$ O* z, T4 D) A; p
IP numeral 2;) D t6 X* M8 m; a6 m% H
no entry into the luminaire enclosure by the relevant test probe for first characteristic; D3 d T W/ ^# D
IP numerals 3 and 4.
0 Y/ p( }) F- }3 D) L( i YFor luminaires with drain holes in accordance with 4.17 and luminaires with ventilation slots1 [& s, v2 b' b
for forced cooling, no contact with live parts is permitted through the drain holes and
4 _2 O' L! `' }7 Pventilation slots with the relevant test probe for the first characteristic IP numerals 3 and 4;
, z, ^, r. G9 }- g9 Q3 Kg) no trace of water on any part of a lamp requiring protection from splashing water as
9 q0 P5 C4 q4 h* w8 x# S* P7 rindicated in the “informations for luminaire design” section of the applicable lamp standard;* s, U) c) c1 w) u! q
h) no damage, for example, cracking or breakage of a protective shield or glass envelope,/ R3 p+ U7 _+ t* ?! p; {
such that safety or protection against the ingress of moisture is impaired. |
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