求教IEC60598-1: Section 9

ryanluk

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大家好！

请大家帮忙理解下面IEC60598-1 Section 9 标准中的要求。
+ n  S9 v3 e/ n  B: ^/ |
For tests of 9.2.3 to 9.2.9, a fixed luminaire intended for mounting with its body in contact with
  f; r. M- O2 l$ u9 _a surface shall be tested with an expanded metal spacer interposed between the luminaire and
3 L. Q7 d. G& @& U+ ]7 Y& Lthe mounting surface. The spacer shall be at least equal in overall size to the projection of the
, k+ B9 G9 y( g$ |9 J0 B8 i2 Oluminaire, and have dimensions as follows:
, x/ T) W3 c$ [1 aLongway of mesh 10 mm to 20 mm
Shortway of mesh 4 mm to 7 mm
0 Y8 W4 e9 p6 t# ^( T9 K( {5 kStrand width 1,5 mm to 2 mm
Strand thickness 0,3 mm to 0,5 mm
Overall thickness 1,8 mm to 3 mm
" ?6 F9 {* r5 h; O
5 D' w) x$ R/ _' S, }) u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
$ B( x% |  {: ~2 Q* p  Z
9 s# S8 z( [. L/ x1 p请看一下标准：
If the installation instructions indicate that a drip-proof luminaire is for ceiling or under-canopy
# S* T! P  P9 wmounting, the luminaire shall be attached to the underside of a flat board or plate which
, s: |  s( r- Y9 C5 w" ^0 E: qextends 10 mm beyond that part of the luminaire perimeter in contact with the mounting
$ N. n7 p" b9 H  G. i1 x) Usurface.

mountaindog

更正回答：100 mm + 10mm
. Q) O3 q' A8 R: s! L) D, |
请看以下标准：
, t1 ~! ^! j- C7 Q. N# M! G. TIf the installation instructions indicate that a drip-proof luminaire is for ceiling or under-canopy
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
1 I- R/ a; |$ |0 Esurface.