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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 ( N1 q q% D& G8 M. L0 Y
山炮 发表于 2012-2-7 12:57 
9 z" z; Z& M4 v4 t5 x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。0 Q- K+ N4 \! L5 v: p0 U5 z5 A
29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for
8 t( X1 H# p& W: m" H7 A. R* o/ Gsupplementary insulation. Supplementary insulation shall consist of at least 2 layers of( X1 o9 w* D. J: M, V% U/ ]
material and reinforced insulation of at least 3 layers.
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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?
1 H/ `' x% z% U( _. |0 h/ _, van assessment of the thermal quality of the material combined with an electric strength
5 l/ B* l: ]3 ]; Atest, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a
# T- W( W8 z) X- b( O5 l4 osingle layer, measurement in accordance with 29.3.Z1." ]) t9 B6 ]$ S2 H( ^ p" L
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发表于 2012-2-24 16:36
