Modeling and measurement of exposure to realistic non-uniform electric fields at 50 Hz

Ilkka Laakso*, Tuukka Lehtinen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Human exposure to environmental electric fields can be studied using anatomically realistic models of the human body. However, previous studies have focused on the exposure to idealized uniform electric fields and lack experimental verification. In this study, we developed a realistic simulation model of an electrical substation, featuring a very non-uniform electric field distribution. We then performed measurements of the external electric fields and induced currents in several exposure scenarios at the actual substation, allowing direct comparison between the measured and calculated external electric fields and currents induced in the body. The results indicated a very good agreement between simulated and measured values, demonstrating that large-scale non-uniform exposure scenarios can be accurately modeled. Furthermore, even though the highest external electric field strengths exceeded the reference levels defined in the international exposure guidelines by a factor of approximately two, the internal electric fields were compliant with the exposure limits with a margin of safety of three.

Original languageEnglish
Title of host publicationProceedings of the 2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019
PublisherIEEE
Pages334-337
Number of pages4
ISBN (Electronic)9784885523229
DOIs
Publication statusPublished - Jun 2019
MoE publication typeA4 Article in a conference publication
EventJoint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility - Sapporo, Japan
Duration: 3 Jun 20197 Jun 2019

Conference

ConferenceJoint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility
Abbreviated titleEMC Sapporo/APEMC
CountryJapan
CitySapporo
Period03/06/201907/06/2019

Keywords

  • Contact current
  • Electric field
  • Electric power transmission
  • Electrical substation
  • Extremely low frequency
  • Human exposure

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