> -----Original Message----- > From: Boštjan Glavič [mailto:[email protected]] > Sent: Wednesday, August 07, 2013 21:41 > > Peter, > > Fuse is not replaceable. It needs to be sleeved (tubed) > and only manufacturer can repair the power supply. > > Due to the tubing, there is not likely that vaporized > metal would affect other parts and decrease safety > distances.
Boštjan - Don't be too hasty in that tubing assessment, simply because it's there. The pressures involved can be substantial and the sealing ability of the tubing would need to be carefully reviewed, as well as application methodology (work instructions and craftsmanship). After a fuse opens the circuit involved, the tubing needs to be cut open to look for evidence of metal vapor deposition. Assume nothing. During my employ at a well known NRTL, I was responsible for testing glass tube and other fuses, as well as having seen glass tube fuses crack, ferrules become dislodged (even on solder in place fuses), when the interrupting (breaking) capacity was too low for an application in end-product equipment. I'm glad the fuse will be replaced with another, more approriate type. Peter Tarver This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. - ---------------------------------------------------------------- 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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]>
