David Probably not Listed and/or not properly crimped with the proper tools and/or not suitable for the number of wires or wire gauge sizes.
Best Regards Sent from my iPhone Peter S. Merguerian [email protected] Go Global Compliance Inc. www.goglobalcompliance.com (408) 931-3303 On Oct 9, 2012, at 6:11 AM, "Schaefer, David" <[email protected]> wrote: > After pulling this out of a piece of equipment, I have serious doubts about > the long term use of wire nuts. > > http://s139.photobucket.com/albums/q296/user8888/?action=view¤t=2012-10-08185745.jpg > > > David Schaefer > Senior EMC Engineer > TÜV SÜD America Inc > Office: 651 638 0251 > Cell: 612 578 6038 > Fax: 651 638 0285 > > > > > -----Original Message----- > From: Doug Powell [mailto:[email protected]] > Sent: Monday, October 08, 2012 10:45 AM > To: [email protected] > Subject: [PSES] What's the deal with Wire Nuts? > > At the risk of redundancy, I would like to re-open a question from > 2008 "What's the deal with Wire Nuts?" > http://www.mail-archive.com/[email protected]/msg56599.html > > The original discussion seems to track well with my own opinion on the use of > these wiring devices, but this is based my opinion. I am aware of many > American appliance manufacturers who use these devices and still obtain their > safety certifications. It is my *opinion* that any equipment destined for > the European market should not use these devices but I cannot find any direct > prohibition on their use. The IPC 620 standard may have limits but this is > more like a workmanship standard. > > Several reasons might be used to prohibit their use: > > 1) Temperature ratings > 2) Secondary securement of conductors > 3) Insufficient coverage of bare metal parts and resulting electrical tape > used (creepage problem) > 4) No limit to the number of conductors > 5) Over/Under twisting of the connector > 6) Metallic insert or non-metallic > > > This time around my context is equipment that falls under the scope of IEC > 61010-1 and its derivatives. Has anyone seen a definitive answer to this > question? > > -- > Thanks, -doug > > Douglas E Powell > [email protected] > http://www.linkedin.com/in/dougp01 > > - > ---------------------------------------------------------------- > 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]> > > - > ---------------------------------------------------------------- > 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]> - ---------------------------------------------------------------- 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]>
