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Nezof 发表于 2013-10-7 09:39 & k; M$ M D6 D# \4 Q9 Y, t
两个标准年份不一样,可能还没更新吧
% a, i1 V4 Y8 M+ C d60335-1 © IEC:2010 里面第36页有这么一句话,可以算答案吗?-----k is equal to
1 k7 X+ P( E" j! O: p' E• 225 for aluminium windings and copper/aluminium windings with an aluminium content
0 t+ s y3 T, O0 |# R% o' i( I≥ 85 %,* ?3 n3 y. X( b$ W3 X
• 229,75 for copper/aluminium windings with an copper content > 15 % to < 85 %,
) b) ]' g6 |' V; Z8 [1 `" d& M: o• 234,5 for copper windings and copper/aluminium windings with an copper content; n. h H2 h. |/ [
≥ 85 %; |
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