Lightning-induced surges in building electrical systems

Ya Ping Du; Binghao Li; Mingli Chen

doi:10.1109/ICLP.2014.6973315

Lightning-induced surges in building electrical systems

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

6 Citations (Scopus)

Abstract

This paper presents a numerical investigation into lightning induced surges using a FDTD method. When the down conductor in a building discharges a lightning current, substantial induced voltages are observed in the adjacent distribution circuits. The induced surge voltage is linearly proportional to wave-front parameters of the lightning discharge current, and is a logarithmic function of the distance ratio of two circuit conductors. It is found that capacitances can suppress the induced surge voltage substantially. SPDs are recommended to install at two far ends of a distribution circuit. They do not need to dissipate substantial lightning surge energy observed in the down conductor. It is also found that the surge currents in SPDs are similar to those in short circuits, and can be estimated by using a low-frequency formula.

Original language	English
Title of host publication	2014 International Conference on Lightning Protection, ICLP 2014
Publisher	IEEE
Pages	1217-1222
Number of pages	6
ISBN (Electronic)	9781479935444
DOIs	https://doi.org/10.1109/ICLP.2014.6973315
Publication status	Published - 1 Jan 2014
Event	2014 International Conference on Lightning Protection, ICLP 2014 - Crowne Plaza Shanghai, Shanghai, China Duration: 11 Oct 2014 → 18 Oct 2014

Conference

Conference	2014 International Conference on Lightning Protection, ICLP 2014
Country/Territory	China
City	Shanghai
Period	11/10/14 → 18/10/14

Keywords

distribution circuit
FDTD
induced surge
lightning current

ASJC Scopus subject areas

Environmental Engineering

More information

10.1109/ICLP.2014.6973315

Cite this

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title = "Lightning-induced surges in building electrical systems",

abstract = "This paper presents a numerical investigation into lightning induced surges using a FDTD method. When the down conductor in a building discharges a lightning current, substantial induced voltages are observed in the adjacent distribution circuits. The induced surge voltage is linearly proportional to wave-front parameters of the lightning discharge current, and is a logarithmic function of the distance ratio of two circuit conductors. It is found that capacitances can suppress the induced surge voltage substantially. SPDs are recommended to install at two far ends of a distribution circuit. They do not need to dissipate substantial lightning surge energy observed in the down conductor. It is also found that the surge currents in SPDs are similar to those in short circuits, and can be estimated by using a low-frequency formula.",

keywords = "distribution circuit, FDTD, induced surge, lightning current",

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doi = "10.1109/ICLP.2014.6973315",

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pages = "1217--1222",

booktitle = "2014 International Conference on Lightning Protection, ICLP 2014",

publisher = "IEEE",

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AU - Li, Binghao

AU - Chen, Mingli

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N2 - This paper presents a numerical investigation into lightning induced surges using a FDTD method. When the down conductor in a building discharges a lightning current, substantial induced voltages are observed in the adjacent distribution circuits. The induced surge voltage is linearly proportional to wave-front parameters of the lightning discharge current, and is a logarithmic function of the distance ratio of two circuit conductors. It is found that capacitances can suppress the induced surge voltage substantially. SPDs are recommended to install at two far ends of a distribution circuit. They do not need to dissipate substantial lightning surge energy observed in the down conductor. It is also found that the surge currents in SPDs are similar to those in short circuits, and can be estimated by using a low-frequency formula.

AB - This paper presents a numerical investigation into lightning induced surges using a FDTD method. When the down conductor in a building discharges a lightning current, substantial induced voltages are observed in the adjacent distribution circuits. The induced surge voltage is linearly proportional to wave-front parameters of the lightning discharge current, and is a logarithmic function of the distance ratio of two circuit conductors. It is found that capacitances can suppress the induced surge voltage substantially. SPDs are recommended to install at two far ends of a distribution circuit. They do not need to dissipate substantial lightning surge energy observed in the down conductor. It is also found that the surge currents in SPDs are similar to those in short circuits, and can be estimated by using a low-frequency formula.

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M3 - Conference article published in proceeding or book

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BT - 2014 International Conference on Lightning Protection, ICLP 2014

PB - IEEE

T2 - 2014 International Conference on Lightning Protection, ICLP 2014

Y2 - 11 October 2014 through 18 October 2014

ER -

Lightning-induced surges in building electrical systems

Abstract

Conference

Keywords

ASJC Scopus subject areas

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