Title :
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
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;
Conference_Titel :
Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
1-4244-0364-2
Electronic_ISBN :
0197-2618
DOI :
10.1109/IAS.2006.256783
