Thanks for everyone's help. We have a pretty good idea of what we need to do and how to do it. I have a couple of vendors coming in to see me this week for proposals. Thanks again. Steve Kelly Steve Kelly PH: (416) 750-8433 FAX: (416) 750-0016 CELL: (416) 577-8433 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Blair K. Hogg Sent: Tuesday, February 07, 2006 5:05 PM To: [log in to unmask] Subject: Re: [TN] Hi voltage testing Hipotronics, Associated Research, Quadtech and Slaughter make Hipot testers. there are probably others. Hipotronics are the best (they are made here at GAI-Tronics ;) ). >>> [log in to unmask] 02/07/06 04:01PM >>> Steve, the dielectric test is often called a hipot test (high potential). I have very limited experience with these in a former life. Your stated test requirement of 500 VDC makes sense to me, but the 5000 ohms does not. Normally, a hipot test is run by applying a voltage, usually starting at zero and ramping up to the required test voltage, and checking for current leaking to ground or another conductor. The tester will shut down if leakage current is detected, and will tell you the voltage that the failure occurred at. If no leakage current was detected up to the specified voltage, the hipot test passed. If a hipot test fails once on a specimen, it will usually fail again next time at a lower voltage because you get some carbon arcing at the point of failure, which reduces the dielectric strength. On products I have worked with, 100% hipot testing was done as a UL requirement. This was on commercial food warmers and cookers. You should be able to find more information and manufacturers of hipot testers by searching the Internet for hipot tester. You might even find a hipot tester on eBay as someone's industrial surplus. Dave Roach Trane GCC 4833 White Bear Parkway St. Paul, Minnesota 55110 651-407-4294 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Kelly Sent: Tuesday, February 07, 2006 2:22 PM To: [log in to unmask] Subject: [TN] Hi voltage testing Fellow Technetters, We have been asked by a customer to do a dielectric withstanding voltage on a flex circuit. The requirement is 500Vdc at 5000 ohms. I have a couple of questions: 1) who supplies such equipment and 2) I am under the impression they want this on every net on every circuit - isn't this normally some coupon or AQL basis? Thanks in advance. Regards Steve Kelly Steve Kelly PH: (416) 750-8433 FAX: (416) 750-0016 CELL: (416) 577-8433 --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. 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