Lightning overvoltages in wires within the buildings

Sowa, A.

doi:10.1109/isemc.1991.148192

Cited by 10 publications

(15 citation statements)

References 2 publications

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“…6. In addition, it is worth calculating the transient current distributions induced by a direct lightning on a commercial building since surge currents may create impulsive magnetic fields inside the building and may interfere with or damage sensitive equipment placed in the building [18][19][20][21][22][23][24]. Fig.…”

Section: Influence Of the Lightning Current Injection Locationmentioning

confidence: 99%

Evaluation of Ground Potential Rises in a Commercial Building During a Direct Lightning Stroke Using CDEGS

Lee

Chang

Jiang

2015

IEEE Trans. on Ind. Applicat.

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This paper utilizes CDEGS software to calculate the transient ground potential rise (GPR) in a commercial building with a base of 39 m x 13 m and a height of 21 m during direct lightning strokes. The influences of soil resistivity, location of the lightning strike point, and waveshape of the lightning current on the transient GPRs of three scenarios for the building are analyzed. Such scenarios within the building include devices are grounded independently, devices are grounded via vertical ground electrodes that are connected to each down conductor fixed on the outside of the building, and devices are grounded via a ring ground electrode that is sited around the periphery of the building. The results show that the ring ground electrode provides effective lightning protection for the building under lighting and therefore is recommended.

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Section: Influence Of the Lightning Current Injection Locationmentioning

confidence: 99%

Evaluation of Ground Potential Rises in a Commercial Building During a Direct Lightning Stroke Using CDEGS

Lee

Chang

Jiang

2015

IEEE Trans. on Ind. Applicat.

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“…Numerical modelling of the LPS and computation of relevant electromagnetic quantities due to lightning strikes inside and around it has been a subject of interest for a number of researchers [1][2][3][4][5][6][7][8][9][10][11]. These numerical models vary in many aspects -from the domain in which the computation is performed -time domain models such as [8,9] or frequency domain models such as [11] to the general complexity with which the authors model the entire LPS and/or the medium in which it is situated (homogeneous ground or a more realistic and complex heterogeneous ground).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Attenuation Effect of Grid-Like Spatial Shields Used in Lightning Protection of Buildings

Lovrić¹,

Vujević²

2018

PIER M

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A frequency-domain-based electromagnetic model of the lightning protection system of buildings is presented in this paper. Numerical model can accurately take into account all conductors of the lightning protection system, i.e., air-termination system, down-conductor system and earthtermination system. Using the presented electromagnetic model, attenuation effects of a grid-like spatial shield-sometimes used in lightning protection of buildings-will be analyzed for both the electric field and the magnetic field caused by a lightning strike. Three-dimensional distributions of the fields inside the shield are provided in the paper.

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“…The objective of lightning protection systems (LPS) of buildings is the dissipation of lightning currents to ground with the least possible impact on equipment, installations and people inside the building. This impact is mostly due to the electromagnetic environment (conducted and radiated fields) generated by the circulating currents from the point of impact of the lightning stroke to the grounding electrodes [1] . Large voltage differences between different points of the structure, which are dangerous to persons and equipment inside the building, can also appear as a result of the circulating currents.…”

Section: Introductionmentioning

confidence: 99%

Frequency domain model for transient analysis of lightning protection systems of buildings

Gómez

2016

Heliyon

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A frequency domain modeling approach for lightning protection systems (LPS) of buildings is described and validated in this paper. The model is based on a 2-port transmission line representation of each conductor, and the further assembling of a network representing the complete structure. Horizontal and vertical conductors are modeled using formulas based on the complex images method, in order to take into account frequency dependence. Variation of electrical parameters with height is also considered for vertical conductors. This is accomplished by means of a non-uniform modeling approach based on conductor subdivision and cascaded connection of chain matrices computed for each segment. The results from the model are validated by means of comparisons with measurements reported elsewhere, as well as simulations using PSCAD/EMTDC.

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Lightning overvoltages in wires within the buildings

Cited by 10 publications

References 2 publications

Evaluation of Ground Potential Rises in a Commercial Building During a Direct Lightning Stroke Using CDEGS

Evaluation of Ground Potential Rises in a Commercial Building During a Direct Lightning Stroke Using CDEGS

Analysis of Attenuation Effect of Grid-Like Spatial Shields Used in Lightning Protection of Buildings

Frequency domain model for transient analysis of lightning protection systems of buildings

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