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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 
' i* o9 | O+ E; u2 F6 L" x两个标准年份不一样,可能还没更新吧 # R) q. ^! Y/ j4 m" a
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% ~4 Z$ z9 K4 O4 i
• 225 for aluminium windings and copper/aluminium windings with an aluminium content
: Q7 S7 a$ d: B1 [9 ?; c≥ 85 %,2 h* o2 T" y3 ~, e5 z) T
• 229,75 for copper/aluminium windings with an copper content > 15 % to < 85 %,
+ m- R3 I/ w. D& J• 234,5 for copper windings and copper/aluminium windings with an copper content
5 z5 r2 R) ~. S≥ 85 %; |
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