지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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It is very important to classify explosion hazardous area (EHA) suitably and to use proper explosion-proof electric installations for facilities using flammable gases and liquids. In the past, various examples in the Notification of Ministry of Employment and Labor were referred to in classifying EHA. But, at present, many companies use the hypothetical volume in Korean Standards (KS). This study reviews the validity of EHA classification based on the hypothetical volume by comparing the calculated radii of EHA with those obtained by a consequence analysis program called PHAST and a mathematical approach in British Standards (BS). The radii of EHA by the hypothetical volume were found to be slightly larger than those by the other two methods. This was attributed to rather conservative uses of a safety factor(k) and a correction factor(f) for availability of ventilation in calculating the hypothetical volume. Since the differences are not so conspicuous, however, it is concluded that the hypothetical volume in KS is a valid means for the classification of EHA. This study also presents a table of the radii of EHA for easy reference by small-scale companies using city gas, C3-LPG and flammable liquid(toluene), respectively. The table consists of 25 leakage scenarios corresponding to combinations of 5 pipe(nozzle) sizes and 5 operating conditions for each flammable gas and liquid.
목차
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참고문헌 (7)
참고문헌 신청
Alan McMillan / 2012 / Electrical Installations in Hazardous Areas / Elsevier Science LTD :87~124
1997 / API PR 505, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2 / American Petroleum Institute :21~43
1992 / NFPA 497A, Recommended Practice for Classification of Class I Hazardoud(Classified) Locations for Electrical Installation in Chemical Process Areas / National Fire Protection Association :4~39
2012 / KS C IEC 60079-10-1, Explosive atmospheres - Part 10-1: Classification of Areas-Explosive Gas Atmospheres / Korean Industrial Standards :1~34
2008 / IEC 60079-10-1, Explosive Atmospheres - Part 10-1 :Classification of Areas-Explosive Gas Atmospheres / International Electrotechnical Commission :24~39
1997 / API PR 505, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2 / American Petroleum Institute :21~43
1992 / NFPA 497A, Recommended Practice for Classification of Class I Hazardoud(Classified) Locations for Electrical Installation in Chemical Process Areas / National Fire Protection Association :4~39
2012 / KS C IEC 60079-10-1, Explosive atmospheres - Part 10-1: Classification of Areas-Explosive Gas Atmospheres / Korean Industrial Standards :1~34
2008 / IEC 60079-10-1, Explosive Atmospheres - Part 10-1 :Classification of Areas-Explosive Gas Atmospheres / International Electrotechnical Commission :24~39
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