Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:22S3
Session:
Number:22S3-3
Characterization of Compact Fluorescent Lights RF Emissions in the Perspective of Human Exposure
T. Letertre, A. Azoulay, A. Destrez, F. Gaudaire,
pp.473-476
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
In a context where energy is valued, Compact Fluorescent Light bulbs with low energy consumption (CFL) tend to generalize. However, the radio noise produced by these sources is currently the subject of discussions, particularly about the issue of human exposure. This paper is dedicated to the characterization of the electric and magnetic fields radiated by various models of lamps. Therefore, we have carried out tests in the immediate vicinity (near field) of these CFLs in order to identify the frequencies involved, and the EM fields produced at short distance. These measurements were conducted in-situ to study the evolution of the electromagnetic field over several minutes. The first results showed that the magnetic field generated by CFLs is not negligible, the maximum of the RF field strength was measured in a zone located between the cap of the lamp (containing the “ballast" ) and the middle of the fluorescent tube, values of 1A/m were reached by the magnetic field strength in the immediate vicinity of the lamps, but these values decrease quickly with the distance, this radiated electromagnetic field strength is well below the exposure limits given by ICNIRP. However, RF interferences can occur to radio broadcast receivers in the LW/MW bands.