Lightning-induced surges in building electrical systems

Ya Ping Du, Binghao Li, Mingli Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

6 Citations (Scopus)


This paper presents a numerical investigation into lightning induced surges using a FDTD method. When the down conductor in a building discharges a lightning current, substantial induced voltages are observed in the adjacent distribution circuits. The induced surge voltage is linearly proportional to wave-front parameters of the lightning discharge current, and is a logarithmic function of the distance ratio of two circuit conductors. It is found that capacitances can suppress the induced surge voltage substantially. SPDs are recommended to install at two far ends of a distribution circuit. They do not need to dissipate substantial lightning surge energy observed in the down conductor. It is also found that the surge currents in SPDs are similar to those in short circuits, and can be estimated by using a low-frequency formula.
Original languageEnglish
Title of host publication2014 International Conference on Lightning Protection, ICLP 2014
Number of pages6
ISBN (Electronic)9781479935444
Publication statusPublished - 1 Jan 2014
Event2014 International Conference on Lightning Protection, ICLP 2014 - Crowne Plaza Shanghai, Shanghai, China
Duration: 11 Oct 201418 Oct 2014


Conference2014 International Conference on Lightning Protection, ICLP 2014


  • distribution circuit
  • FDTD
  • induced surge
  • lightning current

ASJC Scopus subject areas

  • Environmental Engineering


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