About: http://webisa.webdatacommons.org/291431117

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	UPS systems must provide sinusoidal output voltage irrespective of operating conditions, e.g. in presence of nonlinear and variable loads.
http://www.w3.org/ns/prov#wasQuotedFrom	ieee.org