PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Western Australia was 40 Hz until 1958 when it changed to 50 Hz like the Eastern part.AEG seems to have chosen 50 Hz as the main frequency in Germany and with Siemens as one of the largest electrical companies in the world I wonder if this is not one reason why eventually everything in Europe and later the rest of the world except North America and other small exceptions became 50 Hz.Some interesti
http://www.w3.org/ns/prov#wasQuotedFrom
  • electrical-contractor.net