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发表于 2013-10-7 09:54
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Nezof 发表于 2013-10-7 09:39
/ l; a* C, x# w5 O$ Y$ W$ j两个标准年份不一样,可能还没更新吧 ; U/ s$ \7 V4 q% h( l2 p
60335-1 © IEC:2010 里面第36页有这么一句话,可以算答案吗?-----k is equal to' ]5 n/ U' G: m" L- |. V8 g
• 225 for aluminium windings and copper/aluminium windings with an aluminium content
1 t. T0 F# _# E% I; X. x Q; V≥ 85 %,' z. {- ~' T- [5 ]- Z; z
• 229,75 for copper/aluminium windings with an copper content > 15 % to < 85 %,& D3 B5 a, ^- o
• 234,5 for copper windings and copper/aluminium windings with an copper content
. @- i# s+ L, M* Q$ v. A% u≥ 85 %; |
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