次级不能接地，这个在61347-2-13上已经明确说明了
通过Y1接地没有问题的
这个我已经跟两家机构确认过 jsspace 发表于 2014-7-2 10:56 static/image/common/back.gif
次级不能接地，这个在61347-2-13上已经明确说明了
依据IEC61347-2-13 Clause 8.2, 满足条件的SELV都可以被人接触到，为什么不可以接地？
8.2 Output circuits of SELV- or SELV equivalent control gear may have exposed terminals if
– the rated output voltage for constant voltage control gear or maximum output voltage for
constant current control gear under load does not exceed 25 V r.m.s.;
– the no-load output voltage does not exceed 33 V r.m.s. and the peak does not exceed
33 2 V.
Compliance is checked by measuring the output voltage when steady conditions are
established, the controlgear being connected to rated supply voltage and rated frequency. For
the test under load, the controlgear is loaded with a resistance which would give rated output
at rated output voltage.
For controlgear with more than one rated supply voltage, the requirement is applicable for
each of the rated supply voltages.
Controlgear with a rated output voltage above 25 V shall have insulated terminals. billowlee 发表于 2014-7-2 11:56 static/image/common/back.gif
依据IEC61347-2-13 Clause 8.2, 满足条件的SELV都可以被人接触到，为什么不可以接地？
8.2 Output cir ...
请注意是不能直接接地，既然谈到了SELV接地的问题，我多说几句
按照60598.1的要求，SELV是不允许接地的， 请参考8.2.3 note 2
而且IEC61347-2-13 附录I已经明确提到SELV不能直接接地。 jsspace 发表于 2014-7-2 12:04 static/image/common/back.gif
请注意是不能直接接地，既然谈到了SELV接地的问题，我多说几句
按照60598.1的要求，SELV是不允许接地的， ...
谢谢......
页:
1
[2]
