Tampere University of Technology

TUTCRIS Research Portal

Current densities and total contact currents during forest clearing tasks under 400kV power lines

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)423-428
Issue number6
Publication statusPublished - 1 Sep 2016
Publication typeA1 Journal article-refereed


The aim of the study was to analyze all values of electric currents from measured periods while performing tasks in forest clearing. The objective was also to choose and analyze measurement cases, where current measurements successfully lasted the entire work period (about 30min). Two forestry workers volunteered to perform four forest clearing tasks under 400kV power lines. The sampling frequency of the current measurements was 1sample/s. The maximum values of the current densities were 1.0-1.2mA/m2 (calculated internal EFs 5.0-12.0mV/m), and the average values were 0.2-0.4mA/m2. The highest contact current was 167.4μA. All measured values during forest clearing tasks were lower than basic restrictions (0.1V/m and 0.8V/m) of the International Commission on Non-Ionizing Radiation Protection. Bioelectromagnetics.


  • Current density, Forest clearing, Forestry workers, Power line, Total contact current

Publication forum classification

Downloads statistics

No data available