And by the way, for the critical components description, you may not find out the description directly named with "transformer", but you possibly may find the description related with the subassembly of the transformer, such as the insuted tapes, bobbin, and etc, those may be indicated as the requirements of the transformer, and could be required to be UL R/C...
And if all above you checked can comply with the FUS procedure's description, then rest assured, and no need to be anxious, and what you should do is to prepare the documents as many as you can, in order to be checked by the UL field representative during the IPI.
And finally, make good communication with the UL factory auditor during the factory audit, it's more important than everything... Sometimes, the good communication means that you need to prepare something which is not directly related with the audit itself, such as:
1. Having a dinner with the auditor before and after the factory audit;
2. Having a modest communication with the auditor during the factory audit even you find that the auditor sucks;
3. Prepare presents, even cash if you can, but the prerequisite is that the auditor could accept.
If you can do all above well, both the work during the audit and the one outside of the audit, I believe the IPI could pass.... linktan1988 发表于 2014-6-3 16:08 static/image/common/back.gif
没有，那就应该是不需要变压器的IPI了？
个人理解是！
如果 UL Report 没有一个特別的 volume 去规范这个变压器, 应该不须要为这个变压器做 IPI But it does work...
页:
1
[2]
