Lightning current models' characteristics based on continuous wavelet transform

He, Wei; Zhou, Kesong; Wang, Linghui; Zheng, Huang

doi:10.1109/apl.2011.6110116

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…1 Buildings suffer from the side stroke by weak lightning (2) Grounding resistance. Test results show that the smaller the grounding resistance of target object, the stronger the ability to attract lightning [6][7] [8]. It is necessary to minimize the grounding resistance, leading lightning to hit the air-terminal system and protecting the protected objects.…”

Section: Lightning Striking Selectivity Of Buildingsmentioning

confidence: 99%

Analysis on Lightning Striking Selectivity and Lightning Protection

Feng²,

et al. 2014

AMR

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According to the national standard (GB-50057-1994) of lightning protection design, we can calculate the number of lightning ground flash density around them. However, this technique would have some defects. In order to improve the predicting accuracy of the lightning striking of tall buildings, there are three methods, i.e. a broken line method, the method of Faraday cage, and ball method. The electrical geometry model of rolling ball method as the theoretical basis for calculating is easy. In order to analyze lightning striking selectivity of buildings, the shielding between buildings were discussed based on the electric geometric model (ball method). It is different lightning probability for different monomer buildings, building groups, different distance, different geographical environment, and climate environment. And some protection measurements were proposed to improve the lightning shielding performances.

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Section: Lightning Striking Selectivity Of Buildingsmentioning

confidence: 99%

Analysis on Lightning Striking Selectivity and Lightning Protection

Feng²,

et al. 2014

AMR

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“…Calculation of the electromagnetic field generated by lightning [4] [5], the position and the way of lightning occurrence is determined firstly. We hypothesized that lightning occurred off the overhead power line [6]of communication station where it's not too far away, and it is the linear cloud-to-ground lightning.…”

Section: The Lightning Channel Model and The Derivation Of Electromag...mentioning

confidence: 99%

Analysis on Lightning Electromagnetic Fields

Zhang

Wang

et al. 2013

AMM

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t is generally needed to know precisely spatial distribution of lightning electromagnetic fields in the lightning protection measurements. Therefore, the research on the lightning electromagnetic field is of practical significance. In this paper, the Maxwell equations were used to calculate and analyze the spatial distribution of lightning electromagnetic fields surrounding lightning current. And the expressions of lightning current electromagnetic fields were deduced under the assumption that the earth was under the condition of perfect conductor. The spatial distributions of the components of lightning electromagnetic fields have been plotted by Matlab. The results would provide fundamental theory for the research of lightning electromagnetic field and lightning protection measurements.

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“…Along with telecommunication equipment electronic modernization, it is also unceasingly dropping to the lightning surge endurance. Endures energy of massive applications electron tube is 0.1~10J in the 60's, endures energy of massive uses large-scale lumped circuit is only 10-8～10-6J on the present, the difference is 7 orders of magnitude [3]! The lightning that its energy of each time releases several hundred million joules (MJ) is an atmospheric physics phenomenon.…”

Section: Introductionmentioning

confidence: 98%

Lightning Electromagnetic Field within the Building

Feng³

et al. 2014

AMR

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Because of the fast development of high buildings and large mansions and the increasing applications of electronic information technology, all kinds of advanced electronic equipments are installed in buildings. These equipments have qualities of low insulation, weak endurance of overvoltage and overcurrent and sensitivity for EMC disturb. Then more and more serious hazards and indirect economic losses are arising from lightning disturbance. Therefore, in order to cut down such big losses it is really necessary to conduct the research of stroke-incidence rules and take effective measures to protect buildings against lightning. Theories and practice show that the lightning protection is a systematic engineering. The exterior protection and interior protection should be constituted as an integer. This paper mainly studies the telecommunication equipments in the building disturbed and harmed by the lightning electromagnetic field. To protect this injure effectively we must find out the distributions of the lightning electromagnetic field in the building. Three cases of the lightning electromagnetic field distributions in the building have been discussed in the paper.

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Lightning current models' characteristics based on continuous wavelet transform

Cited by 4 publications

References 8 publications

Analysis on Lightning Striking Selectivity and Lightning Protection

Analysis on Lightning Striking Selectivity and Lightning Protection

Analysis on Lightning Electromagnetic Fields

Lightning Electromagnetic Field within the Building

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