• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.28 no.7
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• pp.288-292
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• 2016

The purpose of this study was to improve the refuge safety area in the high-rise building type. Each simulation was conducted to evaluate the performance of three types in improving the refuge safety area. Targeting the first 63 floors (no refuge safety area), secondly, to target up to the $30^{th}$ floor (refuge safety area on the $30^{th}$ floor, $47^{th}$ floor) specified in domestic laws, and finally, the $20^{th}$ floor (evacuation safety area on the $20^{th}$ floor, $42^{th}$ floor) were considered as targets. Through this analysis, the following results were obtained : The floor for the refuge safety area through simulations showed that the evacuation time is low. It is necessary to improve the floor for the refuge safety area by using the characteristics of the domestic fire fighting vehicle. The first floor for the refuge safety area from the ground floor differs according to the distance and height of the building floor. However, in the case of a business facility it is 15F, and in the case of apartment housing, it is 20F.

• International Journal of Advanced Culture Technology
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• v.7 no.4
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• pp.163-171
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• 2019

Purpose: Purpose: The National Safety Experience Center Establishment and Reinforcement Project Management Guidelines, established to build a national safety experience center that is central to practicing education on disasters and safety accidents, requires that appropriate experience training programs be in place. However, due to the lack of classification grounds for the six areas of disaster•safety accidents presented by the Ministry of Public Administration and Security, and the mortality statistics necessary for establishing sectors have accumulated for over a decade, they are based on this. Our purpose is to standardize classification of sectors belonging to each area. Methods: We will divide disaster•safety accidents into 6 areas by three steps, and the grounds for 6 areas of accidents are presented. The 15 external causes other than the disease since 2009 has been proposed by The National Statistical Office. Therefore on the basis of these causes, various sectors belonging to each area are classified. Results: We will divide all disaster•safety accidents into six areas through three logical separation stages, and the areas were systematically classified based on the 15 factors of death. In conclusion, we present the grounds for the classification criteria in the six areas, the transportation accident disaster area in three areas, the social infrastructure system area in four areas, the crime accident disaster area in four areas, the life safety accident area in four areas, we set up all disaster•safety accidents in six areas and finally standardize total 25 areas.

• Journal of the Korea Safety Management & Science
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• v.9 no.6
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• pp.47-54
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• 2007

The safety management of the small sized enterprise is very important to decrease industrial disaster in the area of industry. On this research, to give the effective measures to decrease industrial disaster, we administered the workplaces in Kyunggi area to search actual condition of industrial disaster and to disclose a link between industrial and industrial safety management. The results show industrial accident characteristics of small sized enterprises in Kyunggi area. So it is shows that we need to put in effective safety political measures to small sized enterprises.

• Journal of the Korean Home Economics Association
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• v.45 no.10
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• pp.97-111
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• 2007

This study examined the actual conditions of outdoor facilities and evaluated safety evaluations levels in playgrounds based on types of kindergartens. The samples for the survey were 100 kindergartens in Seongnam city Gyeonggi-Do province. Most outdoor facilities consisted of playgrounds with sand area and complex playing equipments, while wood-working area, sensory playing area, and mud playing area were less equipped than other facilities. In the case of outdoor playing facilities there were meaningful environmental differences within kindergartens. The public has less diversity in play areas and equipments and providing safety guidelines in playgrounds than privates. The score for the safety evaluations in the outdoor play environment was higher than average. As the range outdoor playing facilities increased, safety was dually considered, while kindergartens with a higher ratio of child-teacher numbers exhibited less consideration to playground safety.

• Journal of the Korea Safety Management & Science
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• v.22 no.2
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• pp.73-82
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• 2020

IEC 60079-10-1 edition 2.0, the global standard for hazardous area classification, was newly revised in 2015. There are many differences compared to the previous edition 1.0 version, first released in 2008, so it has caused confusion in the industry. In case of edition 1.0, the hazardous area extent can be derived through the mathematical formula, but in case of edition 2.0, there was the problem that the exact hazardous area extent was not known because of the mathematical formula of the plot for applying the hazardous area extent was not presented. In this study, we converted the plot introduced in edition 2.0 to CAD format and derived the plot as the mathematical equations. Through this, we suggest the hazardous area extent formula of three states (heavy gas, diffusive, jet). As the IEC committee did not provide the mathematical formula of the hazardous area extent according to the release characteristic, it is impossible to apply the exact hazardous area extent. In this study, a mathematical approach was derived for the plot introduced in edition 2.0, which can reduce the confusion of the applying hazardous area extent.

• Journal of the Korean Institute of Gas
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• v.7 no.4 s.21
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• pp.53-60
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• 2003

Accident occurred by gas explosion in house or building causes damage on lives and properties. To avoid secondary damage, this study drew area ratio of vent area with the experiment for pressure variation with vent area versus building volume by selection of model for different size and shapes of vent area generated by explosion. In addition, Appropriate model was chosen to predict the damage by minimum pressure with the experiment of opening are shapes. This model can prevent secondary damage with the selected vent area and shape to guarantee building safety.

• The Journal of Sustainable Design and Educational Environment Research
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• v.15 no.2
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• pp.1-12
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• 2016

This study was conducted to extract the student-centered experiential safety education activities in order to establish safety-experience-education-facilities based on "School safety education 7 standards" announced by the Ministry of Education in 2015. For this purpose, we established the concept of safety-experience-education-facilities, and conducted surveys twice targeting experts of each 7 fields based on the learned results of 758 sessions through "School safety education 7 standards". First, through the surveys, it was organized by 150 sessions out of 758 education class that extracted from safety-education-program sessions on experts, conducted a second expert survey for the validation of selected educational programs in Delphi format, the result of 5 sessions of the program is deleted, and 145 sessions was surveyed to be maintained. It was ascertained that 145 sessions of education program, 21 sessions of life safety area, 22 sessions of traffic safety area, 18 sessions of violence and personal safety area, 5 sessions of drugs and cyber addiction area, 36 sessions of disaster safety area, 10 sessions of occupation safety area, 33 sessions of first-aid area, is the experiential safety education activities that have to be applied to the safety-experience-education-facilities.

• Journal of the Korean Society of Safety
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• v.26 no.5
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• pp.33-40
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• 2011

In the hazardous areas where explosive liquids, vapors and gases exist, electrical apparatus/equipment should have explosion-proof construction. The consuming of liquefied natural gas(LNG) has markedly increased in the industrial field, especially in aspect of some thermoprocessing equipment, boiler, dryer, furnace, annealer, kiln, regenerative thermal oxidizer(RTO) and so on. Because it has many merits, clean fuel, safety, no transportation/storage facility and so on. It is strongly recommend that the classification of hazards has to be decided to prevent and protect explosion which may occur in thermoprocessing equipment. In this paper, the operated thermoprocessing equipments in industrial area investigated and explosion risk assessment about LNG leakage from its facilities was performed through numerical calculation and computer simulation. Finally, we suggest the systemic/technical approach for safety assessments of thermoprocessing equipments consumed LNG fuel which are specially subjected to classification of hazardous area.

• Nuclear Engineering and Technology
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• v.49 no.2
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• pp.295-305
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• 2017

This paper reviews current status of the unified approach known as integrated safety assessment (ISA), as well as the associated SCAIS (simulation codes system for ISA) computer platform. These constitute a proposal, which is the result of collaborative action among the Nuclear Safety Council (CSN), University of Madrid (UPM), and NFQ Solutions S.L, aiming to allow independent regulatory verification of industry quantitative risk assessments. The content elaborates on discussions of the classical treatment of time in conventional probabilistic safety assessment (PSA) sequences and states important conclusions that can be used to avoid systematic and unacceptable underestimation of the failure exceedance frequencies. The unified ISA method meets this challenge by coupling deterministic and probabilistic mutual influences. The feasibility of the approach is illustrated with some examples of its application to a real size plant.

• Journal of Software Assessment and Valuation
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• v.16 no.2
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• pp.87-98
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• 2020

Recently, IoT, artificial intelligence, cloud, big data, and mobile fields have converged, leading to a new industrial era called the 4th industrial revolution. This 4th industrial revolution has been expanded to all industry area and Software has been taken as important role in this revolution. Thus Software Safety is the huge factor because Software is highly relevant to human safety in accordance with Software expansion. However this Software Safety has been focused on not organization improvement activities but current design/development, In this paper, to solve this issue, Software Safety Maturity level and relevant Process Area is defined. This study is expected to contribute to systematic software safety activities.