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大家好!
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& Q/ E" `* D; y8 n! d% b+ Q, ^) E, I 请大家帮忙理解下面IEC60598-1 Section 9 标准中的要求。
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For tests of 9.2.3 to 9.2.9, a fixed luminaire intended for mounting with its body in contact with& q2 U# j" I% b
a surface shall be tested with an expanded metal spacer interposed between the luminaire and+ b) E$ U8 z' {- |
the mounting surface. The spacer shall be at least equal in overall size to the projection of the9 ]; k8 d+ H. {: v2 o
luminaire, and have dimensions as follows:8 i- D6 }. j& ]& }. B/ W# V
Longway of mesh 10 mm to 20 mm& X3 \; l; |3 v. E( m5 Q" E! B& R% Y
Shortway of mesh 4 mm to 7 mm
( j1 V$ J0 I6 e5 GStrand width 1,5 mm to 2 mm
. J$ U1 u: c0 U5 f- K# ^4 t+ b KStrand thickness 0,3 mm to 0,5 mm
, q0 ?5 ?( V& A3 C- ~Overall thickness 1,8 mm to 3 mm
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2 @$ C3 E8 x' @: R9 O0 v我的问题是:做IPX3和IPX4测试时,当灯具本身的安装面尺寸仅有100mm,但是灯具总的投影面有850mm。那么隔板的尺寸要需要多大呢?是刚好100mm或者是850mm.(注:隔板是用在灯具和安装面之间,做隔离。) 麻烦各位前辈帮忙解答这个问题。谢谢! |
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