About: http://webisa.webdatacommons.org/308602413

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	In a system with a single current sensor, there is a requirement for at least two (in the case of a three phase system) non-zero states (that is states other than state 0 or 7) to be applied for a minimum time Tmin in each period.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca