About: http://webisa.webdatacommons.org/323073002

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	These ensure that essential machinery and systems, such as steering gear, fire-fighting system, navigation and emergency lights, communication and alarm systems continue to operate.
http://www.w3.org/ns/prov#wasQuotedFrom	iec.ch