The lightning transient behaviour of a driven rod earth electrode in multi-layer soil

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dc.contributor.author Nixon, Kenneth John
dc.date.accessioned 2007-03-07T13:11:44Z
dc.date.available 2007-03-07T13:11:44Z
dc.date.issued 2007-03-07T13:11:44Z
dc.identifier.uri http://hdl.handle.net/10539/2213
dc.description Kenneth John Nixon, Student no: 9307628H, PhD thesis, Electrical & Information Engineering, Faculty: Engineering & the Built Environment. 2006. en
dc.description.abstract The work presented extends and contributes to research in earthing and lightning protection and focuses on the transient behaviour of a driven rod earth electrode. Although previous work in this area has produced practical guidelines and models that may be used for lightning protection system design and analysis purposes, there has not been an investigation into the commonly encountered scenario of multiple layers of di erent soil types, particularly where high current densities cause ionisation to occur in the surrounding soil. In the research presented, the behaviour of a practical driven rod earth electrode subjected to peak impulse currents of up to 30 KA is analysed. Measurements obtained using a large-scale experiment arrangement are compared against results obtained using a time-domain circuit model simulation. It is shown that a single apparent resistivity value calculated from the steady state resistance equation and the measured steady state resistance can be used as a simpli cation for modelling the lightning current transient behaviour of a driven rod earth electrode in multi-layer soil. This represents a unique and valuable contribution to engineers working in the eld of earthing and lightning protection. en
dc.format.extent 1322535 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.subject earth electrode en
dc.subject soil ionisation en
dc.subject model en
dc.subject multi-layer soil en
dc.subject lightning en
dc.subject transient en
dc.subject earthing en
dc.title The lightning transient behaviour of a driven rod earth electrode in multi-layer soil en
dc.type Thesis en


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