And the device safety standard is ?? Start with construction requirements in UL1310/CSA No 223
Brian From: [email protected] [mailto:[email protected]]On Behalf Of Scott Xe Sent: Tuesday, November 17, 2009 8:53 AM To: [email protected] Subject: Direct plug-in EPS Lots of electronic equipment are using external power supply (EPS) that is of direct plug-in type. The two halves of housing of the EPS are secured together either by self-tapping screws or ultrasonic welding. Is there any method to access these two methods of screws or ultrasonic welding to an acceptable level? Are these methods degraded with time? We are especially concerned about the screw method since partial recycle material (now quite popular for saving environment) may impact the strength. Regards, Scott - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
