求教IEC60598-1: Section 9

ryanluk

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大家好！

8 k8 A: \% _$ F1 N! u' |5 j- ] 请大家帮忙理解下面IEC60598-1 Section 9 标准中的要求。
8 C! E- ^) m9 N  q0 `  ~6 e9 k
2 H8 J: J$ q: n% ~For tests of 9.2.3 to 9.2.9, a fixed luminaire intended for mounting with its body in contact with
a surface shall be tested with an expanded metal spacer interposed between the luminaire and
the mounting surface. The spacer shall be at least equal in overall size to the projection of the
! L+ [  @8 t4 E) p. }9 l4 Mluminaire, and have dimensions as follows:
, F' R% \5 O% J8 ALongway of mesh 10 mm to 20 mm
Shortway of mesh 4 mm to 7 mm
Strand width 1,5 mm to 2 mm
( Q  t4 s# a2 m# AStrand thickness 0,3 mm to 0,5 mm
* k% m/ D" i, C' H3 H: mOverall thickness 1,8 mm to 3 mm

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！

ryanluk

这是怎么了？你信不信，反正我信了！

laxijing

你信的人。已经下课了。

mountaindog

回答：850 mm + 10mm
( ^3 z+ m0 o- G1 n- t$ Z
请看一下标准：
" c% n8 |; a5 e. {If the installation instructions indicate that a drip-proof luminaire is for ceiling or under-canopy
2 a) q# l+ G* |1 L. n4 u8 ?mounting, the luminaire shall be attached to the underside of a flat board or plate which
extends 10 mm beyond that part of the luminaire perimeter in contact with the mounting
surface.

mountaindog

更正回答：100 mm + 10mm
4 f8 m( x& d- U5 g/ M  j
' V( {( I* z3 W# q$ A请看以下标准：
1 t  X: k+ Z1 HIf the installation instructions indicate that a drip-proof luminaire is for ceiling or under-canopy
# E$ t; e* n8 \+ H  ]2 Mmounting, the luminaire shall be attached to the underside of a flat board or plate which
extends 10 mm beyond that part of the luminaire perimeter in contact with the mounting
surface.