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EN60065 2002版本 有三个条件 5 x1 H3 _) }4 D
1.5mins max & 210K4 [0 c! m3 d: x; ~) E
2. 符合20.1.3要求
4 p7 _' A" \7 @5 }" T) Sa.<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
2 L, R% R) \! k- ?b。。。。
0 X- x6 X3 ]( ^
# m" v" r/ x7 L* r& C很繁琐。。。。$ E% m J6 H% B( H3 d
+ k5 g" h0 R8 I0 l/ X5 q
但是最新版本IEC 60065 2011版本的说的很清楚
# J) B. h( G' h4 T5 w3 ~
2 G9 j, \! m9 V11.2.3 Parts, other than windings and PRINTED BOARDS, providing electrical insulation F5 ^ c3 ?, B
The temperature rise of insulating parts other than windings and PRINTED BOARDS, the failure of
6 V4 S) J. @6 G( T* e7 T; nwhich would cause an infringement of the requirements of 11.1, 11.2.2 and 11.2.4, shall not1 l, v. w! F0 l* B8 m
exceed the values given in Table 3, item b) "Fault conditions".
. u& ^) X& V! l7 NIf a temperature rise limit is exceeded, and if there is doubt as to whether or not an electric
( b# [0 Q5 S" R- B! Cshock hazard exists, a short circuit is applied between the conductive parts concerned and the
; W6 u. x1 T& i- S1 o {: r+ [& [# ~tests of 11.1 are repeated.
0 m6 X0 {' o2 x+ W7 i, K) ]3 p
- h/ I2 K2 ^; b3 x- {( j" m) \( w: X. O( d+ a: k
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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