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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
|4 i. {& T7 ?* P1 R9 e山炮 发表于 2012-2-7 12:57 * e! X. h6 c- G0 j. y# x$ r
有这个: 6 M" R2 J/ `! v/ g. ]9 s$ \# L1 n1 z
0 t0 [# F/ W5 U! j# U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。3 q3 p" T1 K& U7 `) x- |& G7 r
29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for+ l! ?( s9 I- I2 o' w& Q
supplementary insulation. Supplementary insulation shall consist of at least 2 layers of; ?' @+ M9 h4 x# T6 ^* ?
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?
& N6 y/ |* t- L% }an assessment of the thermal quality of the material combined with an electric strength
$ Y4 r' d2 ~. V, ]+ X6 N* ttest, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a
- w T+ D, o2 `- B$ v1 @" F" ~* Vsingle layer, measurement in accordance with 29.3.Z1.! n. ~3 ~. P4 o* i8 h2 j
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