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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
8 \, ^6 j- E. I" s B山炮 发表于 2012-2-7 12:57 6 M" b7 a1 }, u
有这个:
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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。
9 ]/ k3 @6 s! t4 S29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for7 l# J+ F; ]' |' G0 i
supplementary insulation. Supplementary insulation shall consist of at least 2 layers of
6 S( j8 w }( mmaterial and reinforced insulation of at least 3 layers.8 P( g5 @1 T1 y% g
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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?: c1 Y8 J# y. J: t9 s
an assessment of the thermal quality of the material combined with an electric strength
- z( d* I3 o* I+ W0 \ F8 Utest, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a! R% {0 p$ Z4 _& O) m
single layer, measurement in accordance with 29.3.Z1.
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