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发表于 2012-2-9 10:16
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本帖最后由 lele11 于 2012-2-9 10:26 编辑 - e2 N2 M# ^! t5 H2 E4 ?# w
山炮 发表于 2012-2-7 12:57 / f! s( `$ i2 x, o/ n0 J) D- I
有这个: : @- z8 l/ s( B0 J8 F$ A5 _" W; g
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山炮,打耐压是外壳按加强绝缘打就行么?按29.3.2每层都要打耐压的话,空气层我不知如何打。
* I! P$ G5 A) ?" a. S' u+ @& ^29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for4 m8 R) F8 |7 t: \# F
supplementary insulation. Supplementary insulation shall consist of at least 2 layers of9 R( [- H6 r$ K* {( s f
material and reinforced insulation of at least 3 layers.* V, t6 S* e% a/ B0 }
, A/ B9 L- k! i3 ]( n9 N& @另外,是否得按如下这条,符合29.3的材料dry heat 测试,及固体绝缘材料仍按表格符合一定的厚度。但这个要求的前提是‘single layer',我们的固体绝缘加空气是否不算single layer?
% o* c8 g; b) R0 X- D. ^' Wan assessment of the thermal quality of the material combined with an electric strength
: ^2 K. h9 `7 V) k# F! stest, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a
6 Q) L8 l) {1 T2 b, i/ W4 `& Osingle layer, measurement in accordance with 29.3.Z1.9 ~4 V4 f7 W7 f
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