A PROTOCOL FOR SPOT MEASUREMENTS OF RESIDENTIAL POWER FREQUENCY MAGNETIC-FIELDS

This paper describes a simple protocol for measuring power frequency m agnetic fields in residences. The protocol should not be interpreted a s an IEEE standard, but if followed, will provide a degree of procedur al uniformity that currently does not exist. The measurement procedure s are simple and not intended to characterize the temporal and spatial variability of magnetic field levels in residences. The protocol cont ains a structured component for measurements which are performed at sp ecific locations, and an unstructured component for measurements which are performed at locations requested by the occupants. The protocol r equires personnel performing the measurements to explain the metrology -related limitations associated with the measurement results. This pap er also discusses terminology related to power frequency magnetic fiel ds and their measurement, the meaning of measurement accuracy and vari ability within the context of residential magnetic field measurements, and examples of measurement approaches that characterize the variabil ity of magnetic field levels.