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EN60065 2002版本 有三个条件 0 @/ l9 F* i4 S' I5 E, j
1.5mins max & 210K
% u# W3 g4 F- W" L0 U2. 符合20.1.3要求% O n( r' h9 ]; n1 S3 e0 V
a.<2 cm2 PCB (不明白这个2cm2 PCB指的是什么面积？是PCB的大小，还是故障时燃烧的面积不要超过2cm2），不要超过210K& p1 i5 ]# H- O5 Y
b。。。。
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很繁琐。。。。3 G- p2 b# a# L. _) T k
2 D* ]4 K+ t. B& q% B但是最新版本IEC 60065 2011版本的说的很清楚
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11.2.3 Parts, other than windings and PRINTED BOARDS, providing electrical insulation
# r" y9 v3 E! |4 M: P1 C9 UThe temperature rise of insulating parts other than windings and PRINTED BOARDS, the failure of# m* w/ u% \6 Z+ M( E' z5 g3 _# a
which would cause an infringement of the requirements of 11.1, 11.2.2 and 11.2.4, shall not
* R& r* |# Y4 w, n+ Y" rexceed the values given in Table 3, item b) "Fault conditions".
' m/ W' C9 b/ S% \6 J ^If a temperature rise limit is exceeded, and if there is doubt as to whether or not an electric ^4 o V9 @; ?1 `; p! `' _
shock hazard exists, a short circuit is applied between the conductive parts concerned and the" [ m7 @& d# X: I0 u" ]2 Z
tests of 11.1 are repeated.
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最新的就说的很清楚。 |
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发表于 2011-11-18 14:27
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