Levels of extremely low-frequency electric and magnetic fields from overhead power lines in the outdoor environment of ramallah city-Palestine
Date
2017-11-18
Authors
Abuasbi, Falastine
Lahham, Adnan
Abdel-Raziq, Issam Rashid
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
In this study, levels of extremely low-frequency electric and magnetic fields originated from overhead power lines were investigated
in the outdoor environment in Ramallah city, Palestine. Spot measurements were applied to record fields intensities
over 6-min period. The Spectrum Analyzer NF-5035 was used to perform measurements at 1 m above ground level and directly
underneath 40 randomly selected power lines distributed fairly within the city. Levels of electric fields varied depending
on the line’s category (power line, transformer or distributor), a minimum mean electric field of 3.9 V/m was found under a
distributor line, and a maximum of 769.4 V/m under a high-voltage power line (66 kV). However, results of electric fields
showed a log-normal distribution with the geometric mean and the geometric standard deviation of 35.9 and 2.8 V/m, respectively.
Magnetic fields measured at power lines, on contrast, were not log-normally distributed; the minimum and maximum
mean magnetic fields under power lines were 0.89 and 3.5 μT, respectively. As a result, none of the measured fields exceeded
the ICNIRP’s guidelines recommended for general public exposures to extremely low-frequency fields.
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Citation
TY - JOUR AU - Abuasbi, Falastine AU - Lahham, Adnan AU - Ashqer, Issam PY - 2017/11/18 SP - 1 EP - 4 T1 - Levels of extremely low-frequency electric and magnetic fields from overhead power lines in the outdoor environment of Ramallah city-Palestine VL - 179 DO - 10.1093/rpd/ncx259 JO - Radiation protection dosimetry ER -