--- In [email protected], Ignacio Cembreros <[EMAIL PROTECTED]> wrote: > > Jerry Flanders wrote: >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 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
Presents serious potential issues (pardon the pun). No way to monitor for unintended ground faults, and the possibility of multiple unintentional grounds being present causing really strange circuit behavior. Not to mention that if for some reason the ground impedance were to vary from time to time... Bob
