Jerry Flanders wrote: > > An aside: > > While touring Canada in '98, I saw one-wire electrical power > distribution wire along the highway. At a nearby store I asked about > it - clerk phoned her husband, who worked for power co. He confirmed > only one wire was used - conductivity was so good in that area they > used ground for the return path. > > I didn't think about checking the earthworms. > > I later learned a part of Australia or New Zealand also did this. > http://en.wikipedia.org/wiki/Single_wire_earth_return > <http://en.wikipedia.org/wiki/Single_wire_earth_return> > http://www.saskpower.com/pm/rural_elect/rural_elect2.shtml > <http://www.saskpower.com/pm/rural_elect/rural_elect2.shtml> >
I also saw the same in Cuba and in some regions of Central and South America. In fact now it is seldom used, just for small branches of 13,8 Kv circuits serving just a small power transformer. I understand many are being replaced by conventional (live and neutral) 2 wire circuits. 73 de Ignacio, EB4APL
