In Reply to Parent Post by Rios oxnard qe
I am currently not a work although I'll get back with you on the part and text specifics. I myself didn't think this should have been an issue.
As to a C of C for every shipment, we will begin requesting this from all plastic enclosure suppliers. I realy don't see the value in this. I believe this was an old policy of ours that we never realy enforced until now. Some of our Quality Engineers frequently receive faxes of these CoC documents which contain hundreds of pages for each shipment and part. He doesn't even review them and now just files them.
With the E File I can now verify, through the UL website, that the supplier is certified for this part. Could it be that this was required before the internet and companies that have been around awhile never changed this requirement? If so, I assume this was only required for traceability purposes on every part that don't have a UL and E file mark. Our printers plastic enclosures don't have such markings. Although, can't we just review and file the UL cert when we perform the first article? Any changes after that to material is the responsibility of the supplier to report to us and resubmit the UL certs?
Unfortunately, for plastic parts there are no markings. Revise your system to make it work for you. Certainly verifying, via the UL Online Certifications Directory website
, that the mfr is still approved would help. You can also request your suppliers UL Listing Card or the approval letter with each shipment so you can verify whether the approval is still valid.
It maybe the responsibility of your supplier, but you will be the one with the headache when your supplier fails to renew. You should certainly discuss this issue with him.