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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
1 K) r3 R& s' Y% ~! G5 h山炮 发表于 2012-2-7 12:57
, w! C `8 \& c* U* G7 L( f% ~6 {有这个: p1 _/ K$ U5 t$ b: N# m
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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。
8 ~! o$ d1 b t: {) R6 P( R! w H29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for
8 {. V. X: |3 y2 i! B: dsupplementary insulation. Supplementary insulation shall consist of at least 2 layers of
9 |: h7 R) R( @9 L' }material and reinforced insulation of at least 3 layers.
6 I4 b2 K% B: j+ z, E+ J9 \! Y& t: x* C$ p& ]
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?. y/ h7 {7 m% m# X, r* ?2 u8 ^
an assessment of the thermal quality of the material combined with an electric strength r# L, w( B$ n
test, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a
% L) M0 c% s" H; V! l- Ksingle layer, measurement in accordance with 29.3.Z1.5 \! U1 F" j. p1 P: ?! g$ m, C( D# \# ?2 O
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