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Radiation Protection Dosimetry Advance Access published online on October 20, 2009
Radiation Protection Dosimetry, doi:10.1093/rpd/ncp218
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© The Author 2009. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

INTERCOMPARISON OF MAGNETIC FIELD MEASUREMENTS NEAR MV/LV TRANSFORMER SUBSTATIONS: METHODOLOGICAL PLANNING AND RESULTS

S. Violanti1, M. Fraschetta1, S. Adda2,* and E. Caputo2

1 ARPA (Agenzia Regionale Protezione Ambiente) Emilia Romagna, Via XXI Aprile 48, Piacenza (PC)
2 ARPA Piemonte, Via Jervis 30, 10015 Ivrea (TO), Italy

* Corresponding author: s.adda{at}arpa.piemonte.it

Within the framework of Environmental Agencies system's activities, coordinated by ISPRA (superior institute for environmental protection and research), a comparison among measurements was designed and accomplished, in order to go into depth on the matter of measurement problems and to evaluate magnetic field at power frequencies. These measurements have been taken near medium voltage /low voltage transformer substation. This project was developed with the contribution of several experts who belong to different Regional Agencies. In three of these regions, substations having specific international standard characteristics were chosen; then a measurement and data analysis protocol was arranged. Data analysis showed a good level of coherence among results obtained by different laboratories. However, a range of problems emerged, either during the protocol predisposition and definition of the data analysis procedure or during the execution of measures and data reprocessing, because of the spatial and temporal variability of magnetic field. These problems represent elements of particular interest in determining a correct measurement methodology, whose purpose is the comparison with limits of exposure, attention values and quality targets.


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