Hi, Genny, My condolences! PVC-coated wire was banned from use in aircraft equipment owing to its lack of flame retardant abilities. The PTFE-coated wire family, of which Teflon is a member, was the preferred replacement. I think you can infer when to use PVC and when not to - if, as a result of your equipment catching fire, there is a likelihood of further endangering life through increased flame or smoke, then don't use it. Do you now need to change out the wire? Good luck! Peter Genny Gibbard <[log in to unmask]> 24/04/2003 03:46 AM Sent by: TechNet <[log in to unmask]> Please respond to "TechNet E-Mail Forum."; Please respond to Genny Gibbard To: [log in to unmask] cc: (bcc: DUNCAN Peter/Asst Prin Engr/ST Aero/ST Group) Subject: [TN] wire coatings 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has been done using a PVC coated wire, instead of the teflon coated wire I spec'd. Apparently the wire in question is obsolete, but they like using it better than the teflon, and want to continue to use that.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. Genny Gibbard (mailto:[log in to unmask]) --------------------------------------------------- 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 ----------------------------------------------------- [This e-mail is confidential and may also be privileged. If you are not the intended recipient, please delete it and notify us immediately; you should not copy or use it for any purpose, nor disclose its contents to any other person. Thank you.] --------------------------------------------------- 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 -----------------------------------------------------