标题: EN 61347-1的附录A问题 [打印本页] 作者: sunny.yan 时间: 2010-4-16 17:44 标题: EN 61347-1的附录A问题 请问EN 61347-1的附录A中判断是否为带电体，是否A2和A3都要测，还是只测其中任何一项，请高手解答，谢谢！作者: byl77 时间: 2010-4-16 21:17
A.1 In order to determine whether a conductive part is a live part which may cause an electric( a% Q2 ?8 X$ u% W3 e
shock, the lamp controlgear is operated at rated voltage and nominal supply frequency, and 3 o* p2 E2 G5 Z5 o: Othe following tests are conducted.: W0 Q0 ^( e* _, N
A.2 The part concerned is a live part if a current of more than 0,7 mA (peak) or 2 mA d.c. is . ?, p7 R) [% Z4 rmeasured. % ~* {, m8 D1 g# _For frequencies above 1 kHz, the limit of 0,7 mA (peak) is multiplied by the value of the3 r" W9 ]# Q5 P& @
frequency in kilohertz, but the result shall not exceed 70 mA (peak). + U0 O6 i3 S% v! q1 f0 h7 DThe current flowing between the part concerned and earth is measured. - Q7 {+ `4 X _7 ?Compliance is checked by measurement in accordance with Figure 4 and 7.1 of IEC 60990. q; K4 D) h; c+ B3 dA.3 The voltage between the part concerned and any accessible part is measured, the - ]4 ~$ G( ]0 _: D. V4 Y0 y4 _measuring circuit having a non-inductive resistance of 50 kΩ. The part concerned is a live: N8 Y) f( Y6 s% s
part if a voltage of more than 34 V (peak) is measured. + L4 g; c1 v" O5 v, K) SFor the above test, one pole of the test supply shall be at earth potential.作者: sunny.yan 时间: 2010-4-20 12:53
比如要判定金属外壳是否为带电部件，是不是A2和A3两种方法同时要测， 还是用其中任一种测就可以了？作者: windswallow 时间: 2013-5-24 09:45
关于这个问题，大家的讨论结果如何？作者: buffallo 时间: 2013-12-7 08:50
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