About: http://webisa.webdatacommons.org/14596202

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	The installer then sets the desired polarity according to how the relay has been wired, i.e. for normally open or normally closed operation.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk