What I love with BA, either WE customers are guilty, either their providers ... I already mentioned X-1s giving electrical shocks... and the CE sign on the PSUs is the China Export sign, not the CE one !!!
The China Export mark is apparently a misconception, what I suspect these supplies have is a counterfeit Conformité Européenne mark.
http://en.wikipedia.org/wiki/CE_marking#China_ExportThe X1 PSU definitely has an incorrect CE mark as seen here:-

(screenshot from
http://youtu.be/KtxVxqPmN7k?t=2m50s at 2:50)
I believe BA were badgering the PSU manufacturers to shrink the physical size of the PSUs which won't help matters. Here we go, 20th February weekly update (remember those?) parts 6a and 6b.
http://ecointalk.net/topic/392-black-arrow-weekly-production-update/Anybody in the US want to get in touch with Underwriters Laboratories? They take a rather dim view of logo misuse and there's a UL Registered Component mark on those power supplies.
http://site.ul.com/global/eng/pages/offerings/services/programs/anticounterfeitingoperations/How are counterfeit goods discovered? And how can companies/individuals report counterfeiting?
UL works with U.S. Customs and other law enforcement agencies to train personnel how to identify counterfeit products. If you have information about counterfeiting activities or suspicious products, please contact the U.S. Customs hotline at 1-800-ITS-FAKE (1-800-487-3253) or UL to issue a report.
ALSO of note (the deeper the rabbit hole goes) there's no FCC declaration on those power supplies, and for import to the US they appear to require one.
http://en.wikipedia.org/wiki/FCC_Declaration_of_Conformity