In message <201048ea81ba0745aca78e4cc8839001046a8...@desmdswms201.des.grplnk.net>, dated Tue, 17 Mar 2009, "Haynes, Tim (SELEX GALILEO, UK)" <[email protected]> writes:
>On the 12Vdc/230Vac inverters that I use in my cars, there is an earth >connection to earth the metal case of the inverter. This is connected >to the car chassis and it is also connected internally to the >earth/Neutral of the 3pin plug. any item that requires an earth is then >referenced to the car chassis which has become the local earth for the >system. This isn't the best solution. > >If the 230Vac powered equipment is taken outside the car environment, >the return path is still back to the chassis via the conductivity of >the soil/tarmac/concrete that the person and car are standing upon. > >How many people would operate two inverters in a car (for different >equipment) and does this double the shock risk? What happens if the two >items of equipment are connected together (e.g. DVD player and TV in a >motor-caravan (mobile home))? This is why it isn't! -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Things can always get better. But that's not the only option. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 <[email protected]> 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
