This Technical Report provides general guidance on the electromagnetic environment issues of HVDC transmission lines. It concerns the major parameters adopted to describe the electromagnetic environment of a HVDC transmission line, including electric fields, ion current, magnetic fields, radio interference, and audible noise generated as a consequence of such effects. If the evaluation method and/or criteria of environmental issues are not yet regulated, engineers in different countries can refer to this Technical Report to:
- ensure the safe operation of HVDC transmission lines,
- limit the influence on the environment within acceptable ranges, and
- optimize engineering costs.