PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Have checked both the NFPA 70 and IEEE C37.20.2 and they do not appear to suggest anything other than labelling the equipment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • theiet.org