JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
Other TitleLabor Accidents and Standards in Association with Flexible Intermediate Bulk Containers (FIBC)
Author(jpn)山隈, 瑞樹
Author(eng)Yamaguma, Mizuki
Author Affiliation(jpn)労働安全衛生総合研究所
Author Affiliation(eng)National Institute of Occupational Safety and Health, Japan
Issue Date2014-09-30
National Institute of Occupational Safety and Health, Japan
Publication title労働安全衛生研究
Journal of Occupational Safety and Health
Start page67
End page76
Publication date2014-09-30
Abstractフレキシブルコンテナ(FIBC)は,粉体の貯蔵・輸送・投入等に広く使用されている.一方で,内容物と容器壁との摩擦によって静電気が発生するため,内容物または周囲に爆発性混合物が存在する場合,静電気放電による爆発・火災が発生するおそれがある.本稿では,先ず,FIBC に関連した災害の典型的な発生機構を静電気放電の着火性という観点から解説し,国内での災害事例を紹介する.次に,静電気災害防止対策用FIBC の国際規格(IEC 61340-4-4:2012)の要点を紹介するとともに,これを元に現在作成中の国内規格(JIS)について,特に,IEC 規格との相違点を中心に解説する.
Flexible intermediate bulk containers (FIBC) are widely used for the storage, transportation, and handling of powder. However, a large amount of electrostatic charge can be generated in an FIBC when electrified powder is fed into it or when an FIBC that contains powder is emptied. In such cases, a non-treated FIBC can become highly electrified to the point whereby incendiary electrostatic discharges take place, sometimes resulting in explosions and fires if the powder is combustible or if an explosive atmosphere exists in the vicinity of the FIBC. In this paper, recent cases of accidents in Japan are introduced and the typical mechanisms of explosions and fi res are explained in detail. The international standard (IEC 61340-4-4:2012) and the future Japanese standard (JIS C 61340-4-4) for anti-electrostatic FIBC are described together with their differences.
Description形態: 図版あり
Physical characteristics: Original contains illustrations
KeywordsIEC規格; JIS; フレキシブルコンテナ; 静電気; 爆発・火災; Explosion and fire; FIBC; IEC standards; JIS; Static electricity
Document TypeJournal Article
NASA Subject CategorySpace Transportation and Safety

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