Guidance is provided for measuring the electric-field strength, ion-current density, conductivity, monopolar space-charge density, and net space-charge density in the vicinity of HVDC power lines, in converter substations, and in apparatus designed to simulate the HVDC power-line environment.

The purpose of this document is to provide guidance for the measurement of the electric-field strength, ion-current density, conductivity, monopolar space-charge density, and net space-charge density in the vicinity of high-voltage dc (HVDC) power lines, in converter substations, and in apparatus designed to simulate the HVDC power-line environment. The document -Defines the terms that are used -Describes the interrelationship between electrical parameters - Describes operating principles of measuring instruments - Suggests methods of calibration where applicable - Describes measurement procedures - Identifies significant sources of measurement error