• DocumentCode
    893890
  • Title

    A Practical Extension of Rusck´s Formula for Maximum Lightning-Induced Voltages That Accounts for Ground Resistivity

  • Author

    Darveniza, Mat

  • Author_Institution
    Sch. of Inf. Technol. & Electr. Eng., Queensland Univ., St. Lucia, Qld.
  • Volume
    22
  • Issue
    1
  • fYear
    2007
  • Firstpage
    605
  • Lastpage
    612
  • Abstract
    The effects of ground resistivity (rho) on overhead line voltages induced by nearby lightning flashes to ground are reviewed and descriptions are given of experimental field data and of analytical studies of these effects. A semi-empirical extension to Rusck´s formula for maximum induced voltage to account for the effect of rho is proposed, and this involves substituting the line height (h) in the formula by an effective height heff=h+0.15 radicrho. Finally, its validity is assessed by means of results published by other authors
  • Keywords
    earthing; lightning protection; Rusck formula; ground resistivity; lightning flashes; maximum lightning-induced voltages; semi-empirical extension; Conductivity; Conductors; Data analysis; Frequency; Insulation; Lightning; Power distribution lines; Surface impedance; Surface resistance; Voltage; Ground resistivity; Rusck formula; induced voltage; lightning;
  • fLanguage
    English
  • Journal_Title
    Power Delivery, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0885-8977
  • Type

    jour

  • DOI
    10.1109/TPWRD.2006.881443
  • Filename
    4039415
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=893890