摘要
IEC 61508和IEC 61511为那些涉及在危险的与安全相关的环境下运营,同时想证明自身在功能安全管理方面有合规能力和资质的企业设立了一个全球通用的标准。本文是功能安全手册的第三部分,它介绍了系统集成商采用的安全生命周期模型的详细内容。该功能安全模型对应于IEC 61508的第9阶段和IEC 61511的第4阶段中的逻辑解算器子系统。本文描述了安全生命周期中的关键流程和应交付的内容,以及安全生命周期项目的关键活动和功能安全评估-后者的活动通常不易为人理解,或为安全团体所使用,但它们在确保达到功能安全时是必不可少的。
IEC 61508 and IEC 61511 are setting global benchmarks for organisations operating in hazardous safetyrelated environments who wish to demonstrate their compliance to these standards in the area of capability and competency in functional safety management. This paper constitutes Part 3 of the functional safety handbook and provides details on the safety lifecycle model adopted by the system integrator. This safety lifecycle model maps to IEC 61508 Phase 9 and IEC 61511 Phase 4 in the context of the logic solver subsystem.The paper describes key processes and deliverables of the safety lifecycle in addition to key safety lifecycle project activities and functional safety assessments - this latter activity is one which is not well understood or used within the safety community but is essential in ensuring functional safety is achieved.
出处
《仪器仪表标准化与计量》
2008年第5期17-24,共8页
Instrument Standardization & Metrology
