Extremely Low Frequency Exposure Limits Relative To Military Electrical/electronic System Environments

Abstract

Military electrical and electronic equipment inherently radiate extremely low frequency (ELF) (30 to 300 Hz) fields. In this paper, ELF magnetic field limits from several national and international agencies are compared to MIL-STD-461C radiated emission (REO1) limits which some military electrical and electronic equipments must meet to maintain electromagnetic compatibility. The comparison shows that by meeting the REOl limits, military equipment magnetic field emissions will be below the currently available interim ELF limits and guidelines. Using the existing REOl magnetic field limits as a reference, interim guidelines are suggested for dealing with cases where the REOl limit must be relaxed in the design of electrical and electronic equipments for some military applications.