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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
5 ?5 ` u, c: J4 P, E' Y3 I/ l山炮 发表于 2012-2-7 12:57 + W% g& ]+ r' p7 ~) f. }
有这个:
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( }! k: d! s: p4 P$ K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 _+ @* n! n) P/ Q/ A" q1 y% F3 |29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for" D6 e" t( N# v) m
supplementary insulation. Supplementary insulation shall consist of at least 2 layers of2 f. T* s. s3 G4 a9 R* R
material and reinforced insulation of at least 3 layers.$ O: o/ O7 n6 ?' J, k
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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?
6 v" C& {; n: Gan assessment of the thermal quality of the material combined with an electric strength
7 _& U* E, a+ B y$ L8 `$ K: otest, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a. j" v/ }' v0 ]
single layer, measurement in accordance with 29.3.Z1.% N0 p$ l8 F6 v, d- B* a
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