I read in !emc-pstc that Rich Nute <ri...@sdd.hp.com> wrote (in <200312012224.oaa12...@epgc264.sdd.hp.com>) about 'How do I do this test?' on Mon, 1 Dec 2003: >The construction you describe has two insulations in parallel: > > 1) basic insulation between mains and earth, and > 2) double insulation between mains and earthed SELV. > >Since the insulations are in parallel, the basic insulation must be >disconnected in order to test the double insulation.
What is the point of having double-insulation at all in such a situation? -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ieee-pses.org/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
