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本帖最后由 lele11 于 2012-2-9 10:26 编辑 3 u" F8 X6 @7 n
山炮 发表于 2012-2-7 12:57
" B& e% \$ k* 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。
/ ^/ C' O0 I) m% r! R3 Q29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for6 p5 m9 g2 F1 K$ j! T- h7 D) N# Y
supplementary insulation. Supplementary insulation shall consist of at least 2 layers of3 ~' B w$ i `
material and reinforced insulation of at least 3 layers.
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- n# A2 I1 o$ O/ O q$ b0 K# ] l, x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?
# G9 x' w6 t0 t2 ?/ N$ w% yan assessment of the thermal quality of the material combined with an electric strength- q7 I5 G$ n5 p/ j' @2 E" [2 O
test, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a( ]0 }* n/ p3 G( R. o* V* n
single layer, measurement in accordance with 29.3.Z1.
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