사례 연구 : EN ISO 13849-1의 안전회로 설계를 위한 구체적 평가 기준의 적용
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2018.03
- 8페이지/ 어도비 PDF
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서지정보
ㆍ발행기관 : 한국산업경영시스템학회
ㆍ수록지정보 : 산업경영시스템학회지 / 41권 / 1호
ㆍ저자명 : 정환석, 이동주
목차
1. 서 론
2. EN ISO 13849-1 기준과 제시하는 세분화된기준
3. 제안된 평가 기준을 적용한 사례 연구
3.1 PL 값이 주어진 시스템에서의 판정
3.2 PL 측정(Category, MTTFd, DC, CCF)계산방식을 이용한 판정
3.3 Software Tool 이용한 판정(SISTEMA)
4. 결 론
References
영어 초록
With the development of industrial technology and science, production and manufacturing facilities have been enhanced and improved, and the importance of the safety of workers has also been regulated and limited by various safety management methods. As a way to secure the safety of the workers from the production facility, the fail-safe and fool-proof methods are now being applied. Any possible insecure behavior and unsafe conditions can be removed by adopting the standards and specifications that are now secure the safety of workers and equipment. This research analyzes EN ISO 13849-1 international and European standards during CE certification. In order to secure acceptable reduced risks, the risk assessment process of ISO 12100 and the processes for reducing its risk are applied. In the current ISO 13849-1 standard, the criteria for the required performance level PLr (Required Performance Level) for the applicable risk and safety functions through the risk assessment are subjective and not subdivided. Therefore, the evaluation criteria are likely to cause judge’s judgement error due to qualitative judgement. This research focuses on evaluation and acceptable performance level setting for the safety circuit of the equipment. We propose an objective and specific evaluation criteria to secure safety, and the proposed evaluation criteria are applied to the case study of the safety circuit for the equipment. In order to secure the safety of the entire safety circuit, the improvement of the MTTFd and DC level related to the SRP/CS (Safety-Related Parts of Control Systems)’ lifetime is required for the future research.
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