Recent Developments in EMC Standards and Regulations

A proposed standard for the measurement of human exposure to electromagnetic fields below 100 kHz is being studied by the IEEE C95 standard com-mittee. Among the sources of human exposure to fre-quencies from 0 to 100 kHz are 60 Hz alternating cur-rent in home electrical wiring and high-power distri-bution lines, airport metal detectors and in-store anti-theft systems. The current IEEE standard, IEEE C95.3, addresses the measurement and computation of magnetic and electric fields outside and inside the human body at frequencies of 100 kHz to 300 GHz. The proposed IEEE PC95.3.1 will do the same below 100 kHz. It is important to note that these standards do not address the safety or biological effects of exposure to these fields. IEEE C95.1, C95.6 and other standards set acceptable limits for human exposure to electro-magnetic fields.