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  1. 防災科研関係論文

Impact on the Electric Infrastructure Due to Volcanic Ash from a Hydrovolcanic Eruption of Aso Volcano in 2016

https://nied-repo.bosai.go.jp/records/3693
https://nied-repo.bosai.go.jp/records/3693
cd9230c6-bae3-4401-be3f-61d3b9d220bf
Item type researchmap(1)
公開日 2023-04-27
タイトル
言語 en
タイトル Impact on the Electric Infrastructure Due to Volcanic Ash from a Hydrovolcanic Eruption of Aso Volcano in 2016
言語
言語 eng
著者 Masashi Nagai

× Masashi Nagai

en Masashi Nagai

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Setsuya Nakada

× Setsuya Nakada

en Setsuya Nakada

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抄録
内容記述タイプ Other
内容記述 A hydrovolcanic eruption in the early hours of October 8, 2016 triggered a power outage of about 29,000 houses (∼50,000 habitants) in the Aso caldera area, Kyushu, Japan. Although it was recovered naturally by the early morning of that day, the power outage occurred again in the evening following rainfall that began in the afternoon. The power supply in the caldera area had been temporarily maintained despite the heavy landslide damage due to strong earthquakes in April 2016, without the supplemental transmission lines for the normal standard. The power outage is considered to have been due to the insulator flashover in the power substation, Ichinomiya, Aso, around which the mass of volcanic ash was about 3,000 g/m<sup>2</sup> or less (≤3 mm thick). This outage resulted from high electric conductivity of the volcanic ash that was wetted with strongly acidic water dammed in the crater before the eruption. This may be one example of the power outage incident due to thin ash fall.
言語 en
書誌情報 en : Journal of Disaster Research

巻 17, 号 5, p. 829-838, 発行日 2022-08-01
出版者
言語 en
出版者 Fuji Technology Press Ltd.
ISSN
収録物識別子タイプ EISSN
収録物識別子 1883-8030
DOI
関連識別子 10.20965/jdr.2022.p0829
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