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EN60065 2002版本 有三个条件
$ O4 K( \5 y0 V! ~4 ?3 G1.5mins max & 210K
1 Z# e. o6 _& Z& }0 P+ C, P4 u2. 符合20.1.3要求. L1 O" _/ v5 B" e0 T9 p& _
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
$ f9 k2 h; z& ^! N- A% J v0 T/ wb。。。。
$ d/ D+ j* c- @. j K8 E. S5 t2 B9 i
( W p8 i' r) ^1 U/ C6 @很繁琐。。。。8 _5 G. q2 k7 M9 } _" q- c4 P, x5 a
9 r9 J$ b8 H, `+ [但是最新版本IEC 60065 2011版本的说的很清楚# s& L2 M3 I3 n2 M# y2 y) J
% L) P0 g1 u8 E; E$ I$ g11.2.3 Parts, other than windings and PRINTED BOARDS, providing electrical insulation& h1 |8 I H6 b. t. f
The temperature rise of insulating parts other than windings and PRINTED BOARDS, the failure of
% n4 W2 a6 d D: A% B) Z; uwhich would cause an infringement of the requirements of 11.1, 11.2.2 and 11.2.4, shall not/ w( H# C8 U& [. q; D3 \
exceed the values given in Table 3, item b) "Fault conditions".; \# j5 f4 ?$ S, e8 Z5 b
If a temperature rise limit is exceeded, and if there is doubt as to whether or not an electric
% Q8 i( X/ k; F+ c4 \! g- |shock hazard exists, a short circuit is applied between the conductive parts concerned and the$ N- U5 Y# }) d$ U* j
tests of 11.1 are repeated.
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6 m+ w: a0 b' e. W4 A
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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