The specification is suspect.  All high voltage tests (insulation resistance or dielectric withstand) that I've encountered are specified as test voltage, test time, and maximum allowable leakage current.  I don't understand how the resistance affects the test parameters.

Don Vischulis

-----Original Message-----
>From: Jeffrey Bush <[log in to unmask]>
>Sent: Feb 7, 2006 3:20 PM
>To: [log in to unmask]
>Subject: Re: [TN] Hi voltage testing
>
>Talk to Associated Research - they provide a host of units and good
>technical guidance on DWV testing.  The test (HYPOT)is mainly to
>validate power/ground leakage that will cause units to fail.  I have
>seen some Avionics customers that either need all nets validated or a
>series of critical nets tested.  Design will have an impact on test
>failures also.
>
>Jeffrey Bush
>Director, Quality Assurance and Technical Support
>VERMONT CIRCUITS INCORPORATED
>           76 Technology Drive - POB 1890
>              Brattleboro, Vermont 05302
>                Voice - 802.257.4571 ext 37
>                    Fax - 802.257.0011
>                       <http://www.vtcircuits.com/>
>
>
>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Kelly
>Sent: Tuesday, February 07, 2006 3:22 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
>-----------------------------------------------------

---------------------------------------------------
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
-----------------------------------------------------