About: http://webisa.webdatacommons.org/52113574

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	This condition prevails for example for a frequency of the auxiliary current of at least 1,000 cycles per second. ice It is well known, however, that high frequency causes perturbing parasitic radiations, often called radio interference.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk