About: http://webisa.webdatacommons.org/181276445

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	There are published clearances to these in standards such as the National Electrical Code.
http://www.w3.org/ns/prov#wasQuotedFrom	antennasystems.com