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EN60065 2002版本 有三个条件
$ U/ _. Y& I! f: Q9 `9 Y, X1.5mins max & 210K' \% P6 h' |% E, b3 q
2. 符合20.1.3要求
! \$ \; x, P% d4 ea.<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
: V8 O# ]$ m9 P( l7 Db。。。。 i% ]+ \ y+ y# V3 D
+ u& E2 Q8 d; x很繁琐。。。。/ Y, X0 N+ K" L: ]4 @: y# }/ }
! G" ^- w3 ^6 ]5 @但是最新版本IEC 60065 2011版本的说的很清楚
1 D/ B l3 v7 ~4 D# S. N Q
* ~. Y6 C6 J$ z3 g1 W i11.2.3 Parts, other than windings and PRINTED BOARDS, providing electrical insulation" @- n0 d- r# b
The temperature rise of insulating parts other than windings and PRINTED BOARDS, the failure of
- F: Z' l2 _+ zwhich would cause an infringement of the requirements of 11.1, 11.2.2 and 11.2.4, shall not9 @4 h3 K% i% ?; V/ c( s
exceed the values given in Table 3, item b) "Fault conditions".
; J1 _; f( z; G$ @7 y/ UIf a temperature rise limit is exceeded, and if there is doubt as to whether or not an electric2 Q. L4 h y: Z& p S2 Y7 Z
shock hazard exists, a short circuit is applied between the conductive parts concerned and the
: S+ f7 i- G( {- j* t; l9 p" _! Otests of 11.1 are repeated." n, F7 {2 s5 S! M: s4 c
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( O8 ?; k& v" S' U0 H+ Q$ M" U5 \
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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