Ron, I think you are looking for IEC 60417-5926: Polarity of d.c. power connector Regards, Kris
-----Original Message----- From: [email protected] mailto:[email protected]]On Behalf Of Ronald R. Wellman Sent: donderdag 14 oktober 2004 4:24 To: EMC-PSTC List Subject: dc polarity symbol Hello all, 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. Any help is appreciated. Best regards, Ron Wellman ---------------------------------------------------------------- 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 ---------------------------------------------------------------- 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
