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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
& P: P5 {5 O* D, }* Q9 W1 s山炮 发表于 2012-2-7 12:57 & v. p: w4 h' J' j
有这个: ) l+ \6 l0 N% J4 e% N
, ^$ r0 |2 T7 w( ]' ^# v1 a( b# j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。
' a& Q+ f6 f9 G/ R5 [' {& l29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for! Z6 {3 \4 R6 K# Q* Q
supplementary insulation. Supplementary insulation shall consist of at least 2 layers of/ W1 C3 g+ N. f1 E& k( A7 l
material and reinforced insulation of at least 3 layers.
: R1 W% `( C1 K V# M* ]; w/ x9 K, i# F' d$ C2 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?# E4 s3 T, Q2 u7 s! x
an assessment of the thermal quality of the material combined with an electric strength
- c& b9 @8 I0 P6 F5 W2 p ^test, in accordance with 29.3.3. and, for accessible reinforced insulation consisting of a
9 w# X$ ?4 y4 P5 }) asingle layer, measurement in accordance with 29.3.Z1.
- K# {* c0 C6 ]+ N; y& d# t# X. x5 U7 }9 c) C; n4 r/ z4 r. w
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