On a Survey of the Magnetic Field in a Commercial Area

Ionel Pavel, Valeriu David, Silviu Ursache

Abstract

In this paper we present the human exposure of low frequency magnetic field in a commercial area. To realize the study, we used two measurement instruments to obtain both spot measurements and the long term survey of the magnetic field. Referring to the spatial variability, we realised a map and graphical representations of the magnetic field at different heights, inside the commercial area. The magnetic field variability with height from the floor it was determined in two cases: when the equipments were connected or disconnected from the power supply network. The highest value of the magnetic field was identified near F1 freezer, when it is connected to the power supply network (1272 nT). Also, the maximum value of the magnetic field collected in the commercial area studied was under 2 µT. Compared to the maximum values allowed by ICNIRP, this value is less than 2 %.

Keywords

human exposure, long term survey, magnetic field, spot measurements

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DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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