• 대한안전경영과학회지
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• 제17권2호
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• pp.47-54
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• 2015

To prevent safety hazards in dangerous working area, we have proposed an intelligent image analysis system. Six common patterns of safety violations of workers' are defined and its motion detection algorithms are developed for alarm to CCTV monitoring system. Developed algorithms are implemented at 195 dangerous areas such as chemical and gas treated room. The results of violated motion detection ratio by developed system shows 94.95% of true positive cases, and 0.21% of false positive cases from all 587,645 event cases in one month implementation period. In the period, it is observed that the number of safety rule violations and the following accidents are decreased.

• 한국안전학회지
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• 제7권3호
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• pp.43-52
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• 1992

This research presents how to make more efficient management for preventing accidents in construction site. One of the most efficient way to do so is to quantify those potential hazards and risks, resulting from it. Also it has been tried to rate & weigh each Item of those hazards, depending on the degree of risk. The goal if this qualification method is to establish ensuring the required safety. These are rated & compared with the degree of understandings of each item & accomplishment of those codes.

• International Journal of Safety
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• 제7권1호
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• pp.15-20
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• 2008

The primary goal of this study is to analyze fire hazards of electric home appliances such as electric iron and electric heater using fault tree analysis(FTA). A fault tree(FT) is constructed and used to analyze fire hazards in electric home appliances. The fault tree is built from events that may occur in electric home appliances. The failure rate of basic events are derived from the value of experimental results and reference. And an algorithm analyzing fire in electric home appliances is suggested. We show how fault tree analysis, carried out by means of failure rate, is able to diagnose fire hazards of electric home appliances in a precise manner. We present numerical results such as fire probability of electric home appliances, importance measure, fire cause, etc. It can be helpful in preventing the fire hazards in electric home appliances.

• 한국가스학회지
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• 제4권4호
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• pp.20-24
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• 2000

한국의 Liquid Petroleum Gas 충전소에 있어서 안전관리자의 정전기에 대한 안전 의식을 설문 조사했다. 또한, 위험요소로 판단된 일반 작업복과 순면 작업복의 정전기에 의한 화재 폭발 위험성을 평가했다. 설문 조사에 의하면, 충전소에서는 정전기 예방 측면의 효율적인 교육 및 인식 부족으로 인해 무분별한 작업복을 착용하고 있는 것으로 나타났다. 특히 현재 착용하고 있는 일반 작업복의 경우, 실험에 의한 대전 전하량이 동복 1.79$\mu$C 춘추복 1.44$\mu$C, 하복 1.02$\mu$C로 한국공업규격 (KS K-7807) 에서 정전기 재해 위험 가능성에 대해 언급한 0.60$\mu$C를 크게 상회하여 위험성이 존재했다. 반면. 순면 작업복의 경우는 대전량이 0.52$\mu$C에서 0.42$\mu$C의 범위로 안전한 것으로 나타났다. 따라서, 향후 시각적, 체험적 교육을 병행한 정전기 교육의 질적 향상이 요구되며, 정전기에 의한 재해를 방지하기 위해 착용하는 작업복에 대한 관련 기술 기준의 제정이 요구된다.

• 한국안전학회지
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• 제37권6호
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• pp.96-101
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• 2022

The Occupational Safety and Health Act holds that industrial safety helmets can be used as protective equipment to prevent the risk of injury in fall accidents. To better understand the importance given to PPE for the head, we analyzed the relevant regulations and guidelines in developed countries and reviewed the guidelines on testing safety helmets. The PPE regulations in Korea were notably different from those in other countries. First, except in Korea and Japan, safety helmets were used for protection against falling objects, flying objects, impact, or electric shock. However, the regulations did not recognize safety helmets as a PPE against fall hazards. Second, the impact energy applied on the helmet was within the range 50-100 J, and the helmet could protect only the upper part of the head against hazards such as the impact of falling objects, flying objects, etc. Third, in Korean regulations, the term "fall" was used in relation to the parts where the safety helmet was specified as a fall hazard PPE, unlike in other countries. We propose that the term "fall" should be revised to "shock" in Korean regulations for the safety helmet.

• 대한안전경영과학회지
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• 제15권2호
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• pp.21-30
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• 2013

OSHMS(Occupational Safety and Health Management System) is able to define as a typical convergence of all kinds of activities and elements that support maintaining safety at workplace and protecting employee's health. In particular, fundamental function of OSHMS is preventing diverse hazards at workplace through high level of regulation compliance. Furthermore, insuring safety in workplace, protecting employee's health and increasing effectiveness in manufacture are OSHMS's additional functions. Based on the division of manufacture in 2009 Survey on Current Status of Occupational Health & Safety data, the study analyses certain relation between OSHMS and level of regulation compliance. The main finding is that most activities and elements which formed by OSHMS are being affected by regulation clauses.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제2권10호
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• pp.661-668
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• 2013

Safety Critical 시스템은 시스템의 기능적인 실패 또는 예기치 못한 상황의 발생으로 인해 인명피해, 재산피해, 환경 피해와 같은 치명적인 사고를 초래할 수 있는 시스템을 의미한다. 그러므로 Safety Critical 시스템의 안전을 보장하기 위해서는 시스템 설계 단계에서 시스템에 존재할 수 있는 위험성들이 충분히 고려되어야 하며, 사고가 발생했을 시 피해를 최소화시키기 위한 일련의 예방 동작들이 설계되어야 한다. 현재에는 Safety Critical 시스템의 설계 단계에서 위험성을 식별하고 분석하기 위한 많은 방법들이 연구되었으며, 이 중에는 예기치 못한 사건으로 인한 피해를 예방하는 동작들의 성공 여부를 분석하는 기법도 존재한다. 본 연구에서는 위의 예방 동작들의 성공 여부에 대한 분석뿐만 아니라 기존 연구들에서 언급하지 못한 예방 동작들 간의 충돌과 이로 인해 발생할 수 있는 피해를 분석하는 방법을 제시하고자 한다. 제안한 방법을 통해 Safety Critical 시스템의 안전성이 견고해지고 피해 예방을 위한 동작들의 올바른 설계에 도움이 될 수 있을 것이다.

• 한국안전학회지
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• 제18권3호
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• pp.88-93
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• 2003

The Process Safety Management (PSM) by the Law of Industry, Safety and Health has been performed for preventing major accidents of chemical plants since 1996. In terms of preventing chemical accidents more precisely, it is essential to develop a tool for quantitative risk assessment. For this, KOSHA (Korea Occupational Safety and Health Agency) developed an Integrated Risk Management System (IRMS). The system is designed to assimilate data on chemical plant hazards from external database, to integrate these data with location information(topographic and demographic), and to make them user-friendly accessible. The system consists of several main functions: display of five major Korean petrochemical complex layout display of equipment layout with its information utilizing the external database, zonation of the hazard effected area with consequence analyses, the most probable accident scenario generation, accident/incident database and calculation of frequency of accident using equipment reliability database, etc. The highlight of IRMS is to provide the risk contours using GIS(Geographical Information System) technology. IRMS is intended to manage hazardous installation more systematically and effectively, to reduce the number of accident remarkably, further minimizing production loss in the plant. The system is now under application to about 500 PSM sites as well as and emergency authorities in Korea by KOSHA (Korea Occupational Safety and Health Agency)

• 한국응급구조학회지
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• 제6권1호
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• pp.87-102
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• 2002

Injury has now replaced disease as the biggest single cause of death in children after their first birthday. Each day child dies from preventable, unintentional injury and the medical cost of these injury is increasing remarkably. It is necessary to develope injury prevention models to explain, predict, manage, evaluate and analyze the information about accident. The purpose of this paper is, firstly, to investigate parent's actions regarding safety measures at home and secondly, to identify the influencing factors of parents' safety behaviors. The selection of such factors is guided by the theoretical framework of the Pender's Health Promotion Model. Method ; The questionnaire was developed on the basis of other investigations, through pilot testing, peer review, and review by field health workers. The questionnaire was completed by 231 mothers of young children. Data was collected between April and May 2002. Variable Use of three different domains of safety behavior, safety habits, supervision and perception of safety devices, were listed. Mothers were self reported on internal locus of control, mother & child relationships, and marital intimacy. Also the elements of the Health Promotion Model: perceived benefit, barrier, threat, and self-efficacy, were surveyed. Results & discussion The results indicate that most parents take considerable action to reduce household hazards. The constructs derived from the Model were statistically significant differences for a small part of the variables on parental behavior to reduce hazards in the home, such as age, education, economic status, self-efficacy, perceived benefit, internal locus of control. Future studies ought to include social influences, such as expectations, perceived norms, knowledge, and child-related variables, relevant to parental safety measures in their home.

• 한국안전학회지
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• 제30권4호
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• pp.64-72
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• 2015

The purpose of this study is to study the safety of a small LPG storage tank with a capacity less than 3 ton when it is exposed to an external fire. First, simulation studies were carried out using ASPEN Plus and PHAST to demonstrate that overpressurization in the tank can be relieved by discharging the LPG through an adequately sized safety valve, but the release may lead to the secondary risk of fire and explosion around the tank. Next, the temporal variations of the temperatures of the lading and tank wall were obtained using AFFTAC, which showed that the tank wall adjacent to the vapor space could be overheated in about 11 min to such a point that the weakened strength might cause a rupture of the tank and subsequent BLEVE. The consequences of the BLEVE were estimated using PHAST. Finally, several practical measures for preventing the hazards of overheating were suggested, including an anti-explosion device, sprinkling system, insulation, heat-proof coating, and enhanced safety factor for tank fabrication. The effectiveness of these measures were examined by simulations using AFFTAC and ASPEN Plus.