My ancestors informed me similarly. Corrosion, grease, any thin non-conductive layer between the part to be grounded and ground is invisible to a high potential, but detectable by a lower potential that cannot "punch through it." Ken Javor Phone: (256) 650-5261
> From: John Woodgate <j...@jmwa.demon.co.uk> > Date: Fri, 29 Mar 2013 20:20:30 +0000 > To: <EMC-PSTC@LISTSERV.IEEE.ORG> > Subject: Re: protective bonding test at 12V > > In message <5155f037.6080...@ieee.org>, dated Fri, 29 Mar 2013, Richard > Nute <ri...@ieee.org> writes: > >> The voltage of the test generator is of no consequence. > > Well, that isn't what my ancestors told me, which is what I recited. > -- > OOO - Own Opinions Only. See www.jmwa.demon.co.uk > Which Thunderbird will David Miliband pilot? Or will he drive Lady Penelope? > John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > Website: http://www.ieee-pses.org/ > 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 <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>