Why do shaver sockets accommodate round pin plugs in the 115V outlet when countries with 100V to 120V mains supplies use type A plugs with flat pins? Is there a country somewhere with a 100V to 120V mains supply that just so happens to use shavers with round pin plugs?
Well possibly Chris, the 220V friends of the family we stayed at are in Florianópolis, and their holiday home is on the mainland, and ag with one neighbouring property it is on the end of it's very own branch supply in MRT (Monofásicos com Retorno pela Terra == single wire earth return) - the transformer and associated one street lamp up the precast concrete pole outside looks very strange to my UK eyes with just one HV bush on the transformer and the one 19kV line coming in at the top. That building was regarded as 'new' and I think would date from about 2010. Not a 3 pin anything in sight, but as the incoming mains had no earth, no electrodes and no RCD, that would have been fairly pointless anyway.
The 110V stuff however was from the area near Sao Paulo, though I also know that Rio is also 110V and looks very similar, having also stayed there.
I came back last time with more pics of wiring than of the folk we visited, which in retrospect I think was not a wise move in terms of domestic politics. ?
Well possibly Chris, the 220V friends of the family we stayed at are in Florianópolis, and their holiday home is on the mainland, and ag with one neighbouring property it is on the end of it's very own branch supply in MRT (Monofásicos com Retorno pela Terra == single wire earth return) - the transformer and associated one street lamp up the precast concrete pole outside looks very strange to my UK eyes with just one HV bush on the transformer and the one 19kV line coming in at the top. That building was regarded as 'new' and I think would date from about 2010. Not a 3 pin anything in sight, but as the incoming mains had no earth, no electrodes and no RCD, that would have been fairly pointless anyway.
The 110V stuff however was from the area near Sao Paulo, though I also know that Rio is also 110V and looks very similar, having also stayed there.
I came back last time with more pics of wiring than of the folk we visited, which in retrospect I think was not a wise move in terms of domestic politics. ?
