有安规认证(UL)的整流桥的BODY能基本绝缘的要求吗?
我们这一款电源,用的整流桥是新电元的US8KB80R,有经过UL认证,这种整流桥的BODY可以用螺丝与金属外壳连在一起吗?换句话说,整流桥的BODY符合基本绝缘的要求吗?在UL里面查出来的证书里面没有明确说明它满足基本绝缘的要求呀! 不会吧,没有人回答呀,大虾们,指点下 一般情况下没有基本绝缘,除非UL报告中有明确说明它有基本绝缘,才会认为它有基本绝缘! QQQX2.E142422Electrically-isolated Semiconductor Devices - Component
Models U4KB, U6KBA, U8KBA, US4KB, US6KB, US8KB, US10KB, US15KB, US20KB, US30KB, which may be followed by 80R
CONDITIONS OF ACCEPTABILITY
Unless specified otherwise in the individual Reports, consideration is to be given to the following Conditions of Acceptability when these components are employed in the end-use equipment:
1. These devices shall be installed in compliance with the requirements for enclosure, mounting, electrical spacing, and segregation of the end-use equipment.
2. The suitability of the specified isolation voltage rating shall be determined in the end-use application.
3. Electrical terminals are intended to be factory wired only and the suitability of the connection shall be determined in the end-use equipment.
4. The suitability and performance of these devices as switches shall be determined in the end-use equipment.
这种元件的外壳不可以作为基本绝缘,用过类似CCN的元件,供参考 谢谢包子兄,我怎么能给你金币呀,不会弄? 之前讨论过“MOS管的外壳能否当成绝缘看待?”
http://www.angui.org/read.php?tid-77152-keyword-%CD%E2%BF%C7.html 呵,山炮兄,不一样哦,我这次讨论的整流桥是有经过UL认证的,但REPORT里面没有说明它的BODY有基本绝缘的功能! (之前回过相同内容的一贴,不见了,奇怪,发到哪去了?)
哦,那里有人提出过有UL认证的整流桥,其外壳可以当作基本绝缘。我认为只要相关认证标准中,有专门的说明就可以,楼主可找发贴人问一下。符合这种标准的整流桥,可能封装有特别之处,能有效防止内部炸管时出现外壳的绝缘层崩裂。光耦也是封起来的,呵呵,加强绝缘! PAG 60950 2.10.5-1可以参考一下 PAG 60950 2.10.5-1?
是章节2.10.5-1?标准IEC60950?没有看到什么呀?
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