• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 추계학술대회 논문집
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• pp.599-604
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• 2005

As a public transportation possible to convey a large quantity, the railway is safe and keeps time, but it has hazards to cause a disaster if the accidents such as collision, derailment, and fire occur. So advanced countries carry out System Safety Plan with various program activities which have connected orders to maintain or improve safety level by finding hazards, evaluation, taking measures and practice, and improving problems. Especially they systematically manage hazards to cause railway accidents and the factors which possibly threat safety, using national classification of risk and causes with analysis of the related data such as establishing accident/incident data and safety regulations/standards. As executing railway safety regulations, domestic railway is currently trying to improve railway safety management system. The research of classification system of accidents/incidents is one thing to make railway safety management systems better. In this research, we reviewed hazardous factors of railway systems and classification of the causes as the beginning of system safety management, and we conducted study on development of railway accident classification based on findings of this research. The results are able to be used in identifying hazards and activities of systemic safety management at the step of railway accident report and investigation.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.235-240
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• 2008

Since urban railway transit is one of the most essential transportation systems, its power facilities must ensure high reliability and safety. Currently, urban railway operating organizations perform TBM (Time Based Maintenance) on power facilities. However, in order to improve management efficiency and system safety, CBM (Condition Based Maintenance) is preferred. Among various power facilities, mold transformers has been chosen as the object of study since it is widely used for the purpose of minimizing volume and weight, and due to safety against fire. In this paper, various transformer failure cases due to electric, thermal, mechanical and environmental factors have been collected and analyzed. In addition, investigation on national and international condition based maintenance cases and the characteristics of sensors widely used for transformer monitoring has been performed to suggest the optimal condition based maintenance technique for urban railway systems.

• 헤리티지:역사와 과학
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• 제46권2호
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• pp.96-113
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• 2013

문화재 안전관리는 아직 그 개념이 분명하게 정립되지 못하였고, 문화재 안전관리의 범위와 종류 등에 관해서도 체계적인 정리가 이루어지지 못한 상태에 있다. 현장 관리 측면에서도 다양한 위험요인으로부터 문화재의 안전을 확보할 수 있는 시스템이 구축되지 못하여 위험이 상존하고 있다. 구체적으로는 제도적으로 문화재 안전관리에 관한 법률 등 규정이 극히 제한적인 수준에 머물러 있고, 시설적으로는 소방설비 등 안전설비의 설치 운용에 적정성이 확보되지 못하고 있으며, 주변 환경 면에서도 문화재 안전 확보에 필요한 조치가 매우 미흡한 실정이다. 이 연구에서는 목조문화재를 중심으로 안전관리상의 문제점과 한계를 극복하기 위해 문화재 안전관리의 개념과 종류, 범위 등을 설정하였다. 그리고 문화재 안전관리 수준을 한 단계 높이기 위해 현장에서 안전관리를 담당하는 안전경비인력과 일선 소방공무원들의 의식을 다각적으로 조사 분석하여 목조문화재 안전관리 강화 방향을 제시하였다.

• International Journal of Advanced Culture Technology
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• 제7권3호
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• pp.97-102
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• 2019

This study suggests a solution of an incentive system from the viewpoint of the external effect on the renting of firefighting qualifications and on rental agencies. Currently, the Human Resources Development Service of Korea does not have a penalty for neglecting to perform a search into qualification lending and rental agencies. In the short term, the penal clause should be strengthened so that companies and qualification holders cannot borrow or lend their qualifications. In addition, the Human Resources Development Service of Korea will increase the number of personnel dedicated to investigating the loaning of qualifications. It is necessary for the government to establish a penalty for neglecting to investigate the lending of qualifications for the Human Resources Development Service of Korea. In the long term, the state needs to make only minimal regulations. Also, the state needs to make companies and qualification holders feel like they benefit more when they are not borrowing or lending qualifications. The anticipated effect of this study is that the government will intervene appropriately by applying firefighting qualifications according to market principles. It can also be used as a basis for the revision of related laws on the renting of national technical qualification certificates and the investigation of rental agencies.

• 한국안전학회지
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• 제33권1호
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• pp.66-72
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• 2018

This study analyses the types, related operations, facilities, and causes of chemical accidents in Korea based on the RISCAD classification taxonomy. In addition, human error analysis was carried out employing different human error classification criteria. Explosion and fire were major accident types, and nearly half of the accidents occurred during maintenance operation. In terms of related facility, storage devices and separators were the two most frequently involved ones. Results of the human error-based analysis showed that latent human errors in management level are involved in many accidents as well as active errors in the field level. Action errors related to unsafe behavior leads to accidents more often compared with the checking behavior. In particular, actions missed and inappropriate actions were major problems among the unsafe behaviors, which implicates that the compliance with the work procedure should be emphasized through education/training for the workers and the establishment of safety culture. According to the analysis of the causes of the human error, the frequency of skill-based mistakes leading to accidents were significantly lower than that of rule-based and knowledge based mistakes. However, there was limitation in the analysis of the root causes due to limited information in the accident investigation report. To solve this, it is suggested to adopt advanced accident investigation system including the establishment of independent organization and improvement in regulation.

• 한국산업융합학회 논문집
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• 제24권6_2호
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• pp.781-786
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• 2021

Korean domestic workers are trend to avoid harmful and dangerous jobs calls 3D work due to the poor working conditions. Therefore, the incoming population of foreign workers is increasing to fulfill the required labor force. Mostly these foreign workers are placed in small and medium-size industries. As work that induces musculoskeletal disorders(WMSD) is equally exposed to domestic workers as well as foreign workers, this study attempted to investigate the work burdened by musculoskeletal disorders and derive improvement measures by understanding the actual conditions of the worksites of foreign workers. The result of this investigation defines that the possibility of developing musculoskeletal disorders is very high in the environment in which more than 40% of the respondents work with heavy objects and repetitive work of wrists and elbows. To prevent the symptoms of musculoskeletal disorders among foreign workers, three measures were proposed. To reduce the mandatory check-up period of WMSD under the Occupational Safety and Health Act, to revise the employment permit system, and to enhance the practical help of EPS education. Safety and health management of foreign workers is becoming an essential task not only for securing a workforce but also for the national image. Personal and economic losses at the national level should be minimized through policy support such as financial support for small and medium-sized businesses in Korea and supplementation of legal systems for the protection of foreign workers.

• 문화기술의 융합
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• 제5권3호
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• pp.43-54
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• 2019

이 연구는 아파트 화재의 대형화를 막기 위해 소방공사감리원의 업무수행능력에 따른 완공검사결과와 소방공사감리원의 성능시험 공기확보의 필요성에 따른 완공검사결과 및 완공검사증명서 발급 후 소방시설 등의 하자 유무상태에 따른 요인을 분석하여 완공검사 결과를 측정하여 소방공사감리원의 업무수행능력을 향상시키 위한 것이다. 연구의 결과를 요약하면 첫째, 소방공사감리원의 업무수행능력에 따라 아파트 완공검사결과에 영향을 미치는 것으로 직업별로 소방공무원보다 소방시설설계업 및 소방공사감리업 종사자가 소방공사감리원의 업무수행능력에 따라 아파트 완공검사 결과 정도는 유의하게 높게 나타났다. 그러므로 아파트에는 아파트 공사감리 경력이 있는 사람을 감리원으로 배치하여 소방공사감리원의 업무수행능력을 향상시킬 필요가 있다. 둘째, 소방공사감리원의 성능시험 공기확보 필요성에 대한 완공검사 결과는 직업별로 소방공무원보다 소방시설설계업 및 소방공사감리업 종사자의 성능시험에 대한 공기확보 필요성이 유의하게 높은 것으로 분석 되었다. 이를 개선하기 위해 건축 준공일까지 완공검사를 할 수 있도록 하며 발주처에서는 완공검사증명서를 건축준공일에 임박하여 발급받도록 강요하지 않도록 장치를 마련할 필요가 있다. 마지막으로, 완공검사증명서 발급 후 완공검사의 하자가 완공검사 결과에 영향을 미치는 것으로 발주자(건축주. 감독관) 종사자보다 소방시설설계업 및 소방공사감리업체 종사자가 유의하게 낮게 분석되었다. 이는 소방시설공사를 마치지 않은 상황에서 발주처. 건설사가 완공검사증명서의 발급을 요구함에 따라 완공검사증명서 발급 후 소방시설 등에 하자가 발생하여 완공검사 결과에 영향을 미친 것으로 분석된다.

• Architectural research
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• 제19권4호
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• pp.101-108
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• 2017

The use of the air conditioner is increasing due to the rise of the outdoor temperature during summer, and the problems of the fire and the cooling performance deterioration are caused due to lack of maintenance of the outdoor unit. In particular, overall performance of cooling system and efficiency in outdoor units have been degraded due to an intake of high-temperature outdoor air thereby increasing cooling energy and operating cost. Thus, this study aimed to increase efficiency of outdoor units by evaporating and cooling intake air through mist spray at the intake port surface in the outdoor unit. The measurements results showed that total power consumption of misting outdoor unit compared to that of conventional outdoor units was reduced by 21% approximately, and total power consumption of the entire system including pump was reduced by 16.7%. In addition, the operating cost including water use was reduced by 13.5% approximately. In summary, if a mist-spray nozzle kit is installed in air-cooled outdoor units, the reduction in the usage of cooling energy and operating cost will be achieved without replacement of existing cooling systems or a large scale of repairs.

• 한국안전학회지
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• 제29권4호
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• pp.172-179
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• 2014

This research suggests that the regulation, design and improvement of domestic and international ambulances so that make the basis for the future ambulance in Korea. It is true that the diversification of current disasters, increasing elderly population, the increase in emergency patients, due to the lack of effective transfer system, emergency vehicle's performance problem, and the aging of ambulances cause have difficulty in providing effective emergency services in domestic country. Therefore, in order to improve the effectiveness of ambulance, the history of ambulance, other relevant provisions include international, design and directions to be improved were investigated, and also research directions of the ambulance are suggested in domestic country. In this research, suggests the following conclusions to improve domestic ambulance 1. Through standardization of the spacing and location of an ambulance is needed to maximize the treatment room. 2. The interior of the ambulance design for hygiene and infection control should be included. 3. Stretcher and equipment are designed to be fitted to each other should be standardized. 4. Especially during transfer maintain the road, noise, vibration, and shock-absorbing function to emphasize the importance. 5. The improvement of ergonomic design is necessary for the possibility of applying to many people.

• 항공우주시스템공학회지
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• 제15권1호
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• pp.47-55
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• 2021

항공기의 비정상적인 착륙 상황에서도 조종사의 생존을 보장하고 탈출에 방해되지 않도록 구조물이 설계되어야 한다. 추락 시, 화재의 원인을 찾는 연구를 시작으로 과거 수많은 고정익 항공기 추락시험이 수행되었다. 동역학적 분석을 통한 구조물의 거동특성을 이해하고, 가속도 상태에서 인체의 허용한계를 조사하여 적절한 추락하중배수가 설정되었다. 또한 화물기 사고 데이터를 확률론적 방법으로 분석하여 승객의 안전과 운용비용이 합리적으로 반영된 화물고정용 추락하중배수도 제시되었다. 과거 사례를 바탕으로 현재 적용되고 있는 추락하중배수의 물리적, 의학적, 경제적 의미를 살펴 보았다.