A study of temporal dynamics and spatial variability of power frequency electromagnetic fields in Saint-Petersburg

3rd International Conference Environment and Sustainable Development of Territories: Ecological Challenges of the 21st Century

生态环境科学;地球科学;经济学

Sturman, V.I.^1

Federal State Budget-Financed Educational Institution of Higher Education, Bonch-Bruevich Saint-Petersburg State University of Telecommunications, 22 Prospekt Bolshevikov, St.-Petersburg

193232, Russia^1

关键词: Electric field strength;    Electrical field;    High voltage transmission lines;    Meteorological factors;    Power frequency electric and magnetic fields;    Power frequency electromagnetic field;    Spatial variability;    Temporal dynamics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/107/1/012137/pdf
DOI  :  10.1088/1755-1315/107/1/012137

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper studies spatial distribution and temporal dynamics of power frequency electric and magnetic fields in Saint-Petersburg. It was determined that sanitary-protection and exclusion zones of the standard size high-voltage transmission lines (HVTL) do not always ensure maximum allowable limits of the electrical field depression. A dependence of the electric field strength on meteorological factors was defined. A series of sources create a city-wide background for magnetic fields. That said, the heavier the man-caused load is, the higher the mean values of magnetic induction are. Abnormally high values of magnetic induction are explained by the influence of underground electric cables.