• 제목/요약/키워드: equipment accident

검색결과 563건 처리시간 0.04초

전류 모니터를 이용한 백열등 부하 전기설비에서 사고 징후 검출에 관한 연구 (A Study on the Detection of Indication of Accident in Electric Equipments with Incandescent Lamps Using Current Monitor)

  • 지승욱;옥경재;김시국;이춘하;이광식
    • 조명전기설비학회논문지
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    • 제23권1호
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    • pp.109-115
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    • 2009
  • 본 논문은 백열등 부하 전기설비에서 측정한 전류 파형으로 전기사고 징후를 조기에 검출하기 위한 것이다. 첫째, 저항성 회로에서 전류 모니터의 특성을 분석하였다. 둘째, 백열등을 부하로 하는 전기설비를 구축하고, 전기설비의 일부에서 KS C IEC(Korea Standard C International Electrostatic Commission) 60112에 따라 트래킹을 발생시켜 사고를 모의하였다. 전기사고 징후는 전류 모니터로 측정한 전류파형을 분석함으로써 검출되었다. 그 결과 부하의 수에 관계없이 사고의 최종 단계인 트래킹으로 진전되어 갈수록 전류 파형에는 점점 큰 전류 펄스가 보였고 출현빈도도 더욱 높아졌다.

자동차 주ㆍ정차를 위한 안전장비 디자인에 관한 연구 (Design of safety equipment for the parking)

  • 김기수
    • 디자인학연구
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    • 제16권1호
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    • pp.281-288
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    • 2003
  • 21세기를 거듭나면서 산업의 발달은 우리생활에 크나큰 영향을 주고 있으며, 그 중에서도 교통수단인 자동차의 발달은 우리 삶의 편리함을 제공하고 있다. 그러나 점차 대중화 추세로 나아가는 자동차인구의 증가와 함께 주차 안전의 중요성이 어느 때보다 중요시되고 있으며 교통사고 중 우리가 안심하고 있는 자동차 주차 및 정차 시에 일어나는 사고가 빈번히 발생하고 있으므로 이러한 사고를 예방하기 위한 자동차 안전장비 개발이 필요하다. 본 연구의 목적은 주차 및 정차 시 발생하는 안전사고를 사전에 방지하기 위한 안전장비 개발로서 기존의 실용신안으로 제안된 안전 지지대에서 고려하지 못한 정지마찰력이 높고 도로의 다양한 환경변화, 비포장, 젖은 노면에 적응하며 타이어의 크기를 고려한 각도조절이 용이한 지지대를 개발하였다. 더 나아가 휴대성과 이동성이 고려된 향상된 안전 지지대를 개발하였다. 본 연구는 우리나라의 전체 교통사고 중 10%에 육박하는 주정차 안전사고의 경각심을 고취시키고 안전사고를 줄일 수 있는 방안을 모색하고 나아가 정책적인 의무사용규정을 확립하는데 기초자료를 도출하여 폭 넓은 보급과 활용 방안에 대한 방향을 제시하였다.

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철도건널목 사고방지를 위한 방안 연구 (Accident prevention technology development at a level crossing)

  • 조봉관;류상환
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 제39회 하계학술대회
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    • pp.1025-1026
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    • 2008
  • The level crossing collision accident which comprises more than 90 percent of all level crossing accidents is one of the most serious safety problems. There is a critical need for providing safe strategy and is focusing on the level crossing information rather than measures at a grade crossing. This study is intended to develop technology for accident prevention and damage reduction based on accident cases analysis result and improvement direction to complement shortcomings of safety equipment of conventional level crossing and to establish safety of travelers(train, motor vehicle, person).

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고령 근로자의 안전의식 수준과 안전교육 개선에 관한 연구 (A Study on the Improvement of Safety Awareness Level and Safety Education of Elderly Workers)

  • 이인서;강채연;김현서;정명진;김민서;이승민;우효민
    • 문화기술의 융합
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    • 제9권1호
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    • pp.83-88
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    • 2023
  • 고용노동부의 산업재해 사고사망 통계에 따르면 건설업의 사고 사망자는 458명으로 사고사망자의 77.3% 가 50세 이상이며, 41.9% 가 60세 이상 고령층인 것으로 나타났다. 본 연구는 건설현장에서 근무중인 고령근로자 68명을 대상으로 안전교육, 보호구, 안전의식에 대해 파악하고자 설문조사를 진행하고 분석하였다. 그 결과 고령 근로자들이 가지고 있는 모순적인 안전의식을 재고하기 위해 시각자료를 활용한 안전 교육의 다양화의 필요성에 대해 확인하였다. 또한, 보호구에 대한 높은 필요성 인식과 현장 착용에도 불구하고 보호구 착용에 소극적인 근로자를 위한 개인 신체에 맞는 보호구 지급과 주기적인 교체 등의 보호구의 개선의 필요성에 대해서 확인하였다.

노통연관식 보일러의 압궤사고 방지대책 (Measures for Preventing Pressure Fracture of Fire and Flue Tube Boiler)

  • 이근호
    • 한국안전학회지
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    • 제19권4호
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    • pp.14-19
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    • 2004
  • Boiler is a hazardous equipment to have potential explosion ail the time. And not only it has malfunction at explosion. it lead to people death but also secondary accident such as explosion and fire. Therefore, this equipment should not be broken for keeping its own function. And also, high level of safety should be kept in the process of the use not to be malfunctioned. A large scale of accident due to boiler explosion can be preventive in advance. Boiler fracture is occurred by instant expansion (approximately 1700 time) from quick evaporation of rater in boiler, due to pressure decrease in boiler Emitting energy from it is tremendous and it is so dangerous because of its high temperature. Secondary explosion such as fire is also a main hazard occurring at fuel supply place. If any devices with high pressure is broken, then not only boiler vessel but also components of it are spread with high speed, causing secondary accident. This study is to analyze integrally accident cause of fire and flue tube boiler to have occurred pressure fracture actually, to show countermeasures to prevent accident loss from the fire and flue tube boiler.

Prevention through Design (PtD) of integrating accident precursors in BIM

  • Chang, Soowon;Oh, Heung Jin;Lee, JeeHee
    • 국제학술발표논문집
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    • The 9th International Conference on Construction Engineering and Project Management
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    • pp.94-102
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    • 2022
  • Construction workers are engaged in many activities that may expose them to serious hazards, such as falling, unguarded machinery, or being struck by heavy construction equipment. Despite extensive research in building information modeling (BIM) for safety management, current approaches, detecting safety issues after design completion, may limit the opportunities to prevent predictable and potential accidents when decisions of building materials and systems are made. In this respect, this research proposes a proactive approach to detecting safety issues from the early design phase. This research aims to explore accident precursors and integrate them into BIM for tracking safety hazards during the design development process. Accident precursors can be identified from construction incident reports published by OSHA using a text mining technique. Through BIM-integrated accident precursors, construction safety hazards can be identified during the design phase. The results will contribute to supporting a successful transition from the design stage to the construction stage that considers a safe construction workplace. This will advance the body of knowledge about construction safety management by elucidating a hypothesis that safety hazards can be detected during the design phase involving decisions about materials, building elements, and equipment. In addition, the proactive approach will help the Architecture, Engineering and Construction (AEC) industry eliminate occupational safety hazards before near-miss situations appear on construction sites.

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Analysis of Injuries in the Ghanaian Mining Industry and Priority Areas for Research

  • Stemn, Eric
    • Safety and Health at Work
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    • 제10권2호
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    • pp.151-165
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    • 2019
  • Background: Despite improvements in safety performance, the number and severity of mining-related injuries remain high and unacceptable, indicating that further reduction can be achieved. This study examines occupational accident statistics of the Ghanaian mining industry and identifies priority areas, warranting intervention measures and further investigations. Methods: A total of 202 fatal and nonfatal injury reports over a 10-year period were obtained from five mines and the Inspectorate Division of the Minerals Commission of Ghana, and they were analyzed. Results: Results of the analyses show that the involvement of mining equipment, the task being performed, the injury type, and the mechanism of injury remain as priorities. For instance, mining equipment was associated with 85% of all injuries and 90% of all fatalities, with mobile equipment, component/part, and hand tools being the leading equipment types. In addition, mechanics/repairmen, truck operators, and laborers were the most affected ones, and the most dangerous activities included maintenance, operating mobile equipment, and clean up/clearing. Conclusion: Results of this analysis will enable authorities of mines to develop targeted interventions to improve their safety performance. To improve the safety of the mines, further research and prevention efforts are recommended.

Severe Accident Management Using PSA Event Tree Technology

  • Choi, Young;Jeong, Kwang Sub;Park, SooYong
    • International Journal of Safety
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    • 제2권1호
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    • pp.50-56
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    • 2003
  • There are a lot of uncertainties in the severe accident phenomena and scenarios in nuclear power plants (NPPs) and one of the major issues for severe accident management is the reduction of these uncertainties. The severe accident management aid system using Probabilistic Safety Assessments (PSA) technology is developed for the management staff in order to reduce the uncertainties. The developed system includes the graphical display for plant and equipment status, previous research results by a knowledge-base technique, and the expected plant behavior using PSA. The plant model used in this paper is oriented to identify plant response and vulnerabilities via analyzing the quantified results, and to set up a framework for an accident management program based on these analysis results. Therefore the developed system may playa central role of information source for decision-making for severe accident management, and will be used as a training tool for severe accident management.

철도 광케이블을 이용한 화상전송방안에 관한 연구 (A study on the moving picture transmission method by railway fiber optics cable)

  • 조봉관;장석각;류상환
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2003년도 춘계학술대회 논문집
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    • pp.468-473
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    • 2003
  • CCTV network has been implemented to transmit the image information of platfo gate and transfer section to local headquarters in the KNR(Korean National Railroa But. communication system for transferring image information around accident field has not been established yet. thus, at present implementation of communication equipment is necessary for dyn of unspecified accident to be transmitted to headquarters. Copper cable communication network is run by KNR, but it is processing installatio optics cable in connection with the implemental plan for high-speed network from n And, the capacity of communication channel will be guaranteed much more than een station and station, station and central headquarters when fiber optics cable is This study analyzes the image equipment of field for transmission and estimated m transmit image information of accident field to headquarters with using communicat ucture. And, the study considers implemental method of communication network for nce image transmission from dozens to hundreds kilometers.

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