The more strands in the conductor, the more flexible it is. The drawback is the higher strands will wick more when soldered unless you use an anti-wicking tool to heat sink where the wire and the insulation meet. Donald Durett Engineering Manager Astrolab Inc. 4 Powderhorn Drive Warren, NJ 07059-5105 Tel: 732-560-3800 Fax: 732-560-9570 -----Original Message----- From: Genny Gibbard [mailto:[log in to unmask]] Sent: Wednesday, April 23, 2003 5:46 PM To: [log in to unmask] Subject: Re: [TN] wire coatings Thanks for the info so far. Upon closer examination of the part numbers we have in house, I noticed that the Teflon coated wire was a 19 strand type, while the PVC coated wire was a 7 strand type. Would these finer strands also make the wire much more susceptible to breakage with a little wiggling (the initial problem)? Do you think that if I brought in a 7 strand teflon coated wire that it might solve some of the breakage problems? Thanks. -----Original Message----- From: Genny Gibbard [mailto:[log in to unmask]] Do you remember my question regarding the midplane assembly? Turns out that there was a reel of mislabelled wire in house, and a whole bunch of assembly has been done using a PVC coated wire, instead of the teflon coated wire I spec'd. Apparently the wire in question is obsolete, but they like using it better than the teflon, and want to continue to use that. I don't know much about wire coatings - what is the difference between these two coating types, and when would you want to or not want to use them. I need to decide whether we need to force them to change out the wiring they've already done. Sigh... Thanks for your help in advance. --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------