About: http://webisa.webdatacommons.org/154155291

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Frequency of the alternate current so generated may be changed as desired e.g. 60/50 Hz.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com