A model for calculating the temperature of aluminium particles ejected from overhead low-voltage lines owing to a short-circuit

Psarros, EG; Polykrati, AD; Karagiannopoulos, CG; Bourkas, PD

dc.contributor.author	Psarros, EG	en
dc.contributor.author	Polykrati, AD	en
dc.contributor.author	Karagiannopoulos, CG	en
dc.contributor.author	Bourkas, PD	en
dc.date.accessioned	2014-03-01T01:29:34Z
dc.date.available	2014-03-01T01:29:34Z
dc.date.issued	2009	en
dc.identifier.issn	1049-8001	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19312
dc.subject.classification	Forestry	en
dc.title	A model for calculating the temperature of aluminium particles ejected from overhead low-voltage lines owing to a short-circuit	en
heal.type	journalArticle	en
heal.identifier.primary	10.1071/WF08128	en
heal.identifier.secondary	http://dx.doi.org/10.1071/WF08128	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Wildfires, which are uncontrolled fires spreading readily over vast areas, are usually the result of human negligence, arson or lightning. There are cases of fires close to electrical distribution lines for which the network has been blamed. In the present paper, the risk of a wildfire breaking out owing to the temperature of molten metal particles that are possibly created on bare conductors of low-voltage networks in short-circuit faults (unless they are interrupted by the protection systems) is examined. Thus, a mathematical model is proposed for the estimated temperature rise of those molten metal particles ejected from bare conductors of low-voltage overhead lines. Moreover, this model can be applied to medium- or high-voltage networks. The model takes into account the weather conditions and particles' height above the ground. Further, an arithmetic example for an incandescent particle ejected from aluminium conductors of a low-voltage network is given. According to this example, there is no risk of dead leaves or wood catching fire owing to this particle. © IAWF 2009.	en
heal.publisher	CSIRO PUBLISHING	en
heal.journalName	International Journal of Wildland Fire	en
dc.identifier.doi	10.1071/WF08128	en
dc.identifier.isi	ISI:000270030500010	en
dc.identifier.volume	18	en
dc.identifier.issue	6	en
dc.identifier.spage	722	en
dc.identifier.epage	726	en