A simplified model of the lightning performance of a driven rod earth electrode in multi-layer soil that includes the effect of soil ionisation

Author

Nixon, Kenneth J. ; Jandrell, Ian R. ; Phillips, Andrew J.

Author_Institution

Sch. of Electr. & Inf. Eng., Witwatersrand Univ., Johannesburg

Volume

4

fYear

2006

fDate

8-12 Oct. 2006

Firstpage

1821

Lastpage

1825

Abstract

It is proposed that a single apparent resistivity value calculated from the steady state resistance equation and the measured steady state resistance can be used as a simplification for lightning current transient performance modelling of a driven rod earth electrode in multi-layer soil. The proposal is verified against results obtained using transient analysis of an equivalent circuit that includes the effect of soil ionisation and full-scale experimental results of current impulse tests on a single vertical earth rod in three-layer soil

Keywords

earth electrodes; earthing; equivalent circuits; ionisation; lightning; lightning protection; soil; transient analysis; apparent resistivity value; driven rod earth electrode; equivalent circuit; lightning current transient; lightning performance; multilayer soil; soil ionisation; steady state resistance equation; transient analysis; Circuit testing; Conductivity; Earth; Electrodes; Equations; Grounding; Ionization; Lightning; Soil; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE

Conference_Location

Tampa, FL

ISSN

0197-2618

Print_ISBN

1-4244-0364-2

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2006.256783

Filename

4025471