> From: Cor van de Water via EV <[email protected]> > > Who cares if the charging cable has copper, steel or aluminum wiring, as > long as it meets the current spec (and possibly the max resistance if > that is important (voltage drop)?
Do you live in a house with aluminum wiring in it? No. Because they all burned down in the 70s when it was tried and then banned. Let's hope we don't get *that* silly again! > From: EV [mailto:[email protected]] On Behalf Of Peter C. > Thompson via EV >> >> Utilities and hams have used "copperweld" for many years for airborne > power lines and antenna wires. This is steel wire with a copper plating. Utilities reluctantly use it because pure copper sags too much. Hams can get away with it in antennas because of the "skin effect," whereby high-frequency AC tends to flow in the surface of a conductor, rather than the core. (For this reason, pure copper must be derated when used with radio frequencies.) Steel isn't widely used because iron oxide (rust) is not a good conductor, and steel rusts easily. Stainless steel is mostly nickel, and is more expensive than copper. There's a lot of good reasons why we use copper for electrical applications! If only silver were cheaper... :::: The first priority for society as a whole is to drastically reduce consumption of fossil fuel energy and products derived from fossil fuels. The key action is to curtail. That means buying less, using less, wanting less and wasting less. To curtail means to cut back or to downsize. Curtail reflects the seriousness of the current situation more than the politically acceptable word "conserve." -- Pat Murphy :::: Jan Steinman, EcoReality Co-op :::: _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
