AS originally an EMC guy I would appreciate some more discussion about the coordination of fuses and wiring internationally both from regulator side as well as technical/ theoretical.
I have once been involved in a military portable cabinet +/-15 ft long that included a full "tree" of circuits and circuit breakers for all kind of electronics, PC's lighting. There was a discussion about circuit breaker break current coordination and "disconnect short circuit currents" in relation to wiring. An emergency supply of 15kW was part of the system. The final result as approved by customer was not satisfactorily to me. All kind of odds are found in the real world also: For example how come that small glass fuses with a current breaking capacity of 50 A are so frequently used in professional equipment that can easily be applied in industrial networks protected with over 100A circuit breakers and a potential Ishort of 20kA or more ? Regards, Ing. Gert Gremmen, BSc ce-test qualified testing . -----Oorspronkelijk bericht----- Van: emc-p...@ieee.org [mailto:emc-p...@ieee.org] Namens Peter Tarver Verzonden: Wednesday, May 02, 2012 5:44 PM Aan: EMC-PSTC@LISTSERV.IEEE.ORG Onderwerp: Circuit breakers in Europe Good day to all. We (on this list) have had discussions on the differences in the "calibration characteristics" of fuses certified for use in Europe versus North America. We also discussed fuses sizing for what in North America is called a branch circuit and that fuses in Europe are sized equal to (100% of) the circuit size. Does circuit breaker sizing in Europe follow the same circuit size matching as fuses? For example, would a 16 A circuit that uses wire sized for a 16 A circuit use a 16 A circuit breaker? Regards, Peter L. Tarver This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. - ---------------------------------------------------------------- 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>
