In message <e9c52f9e77c43c49a56a22691b3680be117...@tk5ex14mbxc301.redmond.corp.micro soft.com>, dated Mon, 26 Sep 2011, Ted Eckert <[email protected]> writes:
>As such, there may not be as much of a need to address leakage current >under the Machinery Directive. I can understand your reasoning, but since excessive leakage is one of those faults that can persist undetected until someone gets a severe electric shock, I think it does need to be addressed. There is also an in-situ EMC issue: leakage current creates magnetic fields that are not often counteracted by those of an adjacent conductor carrying the same current in the opposite direction. I had experience of this in a graphics workshop where current in the armour of an under-floor cable caused CRT displays to jitter vertically by about 1 mm, causing sever eye-strain. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK When I point to a star, please look at the star, not my finger. The star will be more interesting. - ---------------------------------------------------------------- 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
