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EN60065 2002版本 有三个条件
1 Q) ~' u4 H; n, O1.5mins max & 210K
! d- R+ v3 \1 }& [2. 符合20.1.3要求
{. v0 I. H6 ra.<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
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2 n9 K- h+ R; p" i. P很繁琐。。。。
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但是最新版本IEC 60065 2011版本的说的很清楚% ~ \4 U5 g, O
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11.2.3 Parts, other than windings and PRINTED BOARDS, providing electrical insulation' H3 s, O/ O4 Q. p1 P) b' r
The temperature rise of insulating parts other than windings and PRINTED BOARDS, the failure of* H7 n2 R$ |9 G
which would cause an infringement of the requirements of 11.1, 11.2.2 and 11.2.4, shall not: C( D3 c+ d% N- T; _8 {
exceed the values given in Table 3, item b) "Fault conditions".
3 b+ R5 K5 L1 Z' c/ {( sIf a temperature rise limit is exceeded, and if there is doubt as to whether or not an electric! l! W6 R# P: P6 i- n# F5 ?% m
shock hazard exists, a short circuit is applied between the conductive parts concerned and the8 f% Z- C+ f% J
tests of 11.1 are repeated.4 C9 l L g; D* K/ e& c- M# h* y
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最新的就说的很清楚。 |
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