In message <ofcffa22de.3c402eb7-on882572e4.005fad83-882572e4.00624...@selinc.com>, dated Wed, 23 May 2007, [email protected] writes:
>During Fast Transient Burst testing at 4 kV to IEC/EN 61000-4-4 >(Edition 2, year 2004), we see arcing between the solder tab and the >frame along the barrel of the terminal block, but only when testing at >the 100 kHz pulse rate. Is it really an arc, or something like a 'brush discharge'? Does it happen if you clean the insulator surface with isopropanol? You could probably stop it anyway by putting a stout insulating washer, around 6 to 10 mm diameter, between the solder tag and the barrel. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk There are benefits from being irrational - just ask the square root of 2. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
