In article <[email protected]>, Ronald R. Wellman <[email protected]> writes > I was wondering if anyone could direct me to a reference or > standard that specifies the dc polarity symbol > that you find on ac > to dc power adaptors used for laptop computers. This is the symbol > that has a positive symbol on one side and a negative symbol on the > other, both in circles, with a circle inside a C between the two > polarity circles. The C is connected to one of the polarity circles > and the circle inside the C is connected to other polarity circle. > I can't find a reference to this symbol in IEC 60417, unless my > copy is too old to have it.
It may be. Another possibility is that it is in IEC 61076-4-111 (I think that's the right number but I can't check it). -- Regards, John Woodgate, OOO - Own Opinions Only. The good news is that nothing is compulsory. The bad news is that everything is prohibited. http://www.jmwa.demon.co.uk Also see http://www.isce.org.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/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: [email protected] Scott Douglas [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
