Perhaps because the cigarette lighter came before electronic gadgets in vehicles and when gadgets did start to come to market they had to use what was available with the result that the whole after-market gadget industry is subsequently geared up to use the lighter socket as a power source
________________________________ From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Piotr Galka Sent: 19 January 2009 15:11 To: EMC-PSTC Subject: Re: Cigarette socket in vehicles By the way. I don't understand why cars still don't have specialised sockets for electronic equipment. The cigarette sockets likes to lose contact (it is my experience). Piotr Galka ----- Original Message ----- From: Scott Xe <mailto:scott...@gmail.com> To: emc-p...@ieee.org Sent: Monday, January 19, 2009 2:38 PM Subject: Cigarette socket in vehicles I have learnt that cigarette sockets supply two voltages: 12 or 24 volts. 12-volt sockets are widely used in light duly vehicles while 24-volt sockets in heavy duty vehicles. The sockets are identical in terms of configuration and dimensions. Is there any mechanism to prevent a 12-volt equipment from being plugged in a 24-volt socket? Thanks, Scott - ---------------------------------------------------------------- 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.ieeecommunities.org/emc-pstc 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 <emcp...@ptcnh.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.ieeecommunities.org/emc-pstc 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 <emcp...@ptcnh.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 (including any attachments) may contain confidential information intended for a specific individual and purpose. If you are not the intended recipient, delete this message. If you are not the intended recipient, disclosing, copying, distributing, or taking any action based on this message is strictly prohibited. - 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.ieeecommunities.org/emc-pstc 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 <emcp...@ptcnh.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com>
