摘要
介绍了电气、电子、可编程电子安全相关系统功能安全标准IEC61508以及过程工业安全仪表系统的功能安全标准IEC61511,以风险降低的目标要求为着眼点,在安全生命周期的架构下,确立了SIS工程实践的技术和功能安全管理体系,确保SIS实现风险降低的"绩效"水平。围绕IEC61508/IEC61511,试图探讨在SIS工程实践中需要重视并解决好的几个典型问题。包括:危险和风险分析、安全要求规格书、SIS设备(子系统)的选型与结构设计、安全仪表功能(SIF)的SIL评估,典型的功能安全管理活动,以及如何对现有装置的SIS系统进行安全评估。实施IEC61508/61511,基于"绩效"的SIS工程实践,就是试图在安全监控措施的投入成本和风险降低的收益之间找到一个平衡点。
In order to reduce risk in the safety life period, the electrical, electronic, programmable electronic safety related system function safety standard HEC61508, the function safety standard of process industry HEC61511 established the SIS engineering practice technology and function safety management system, to ensure that SIS has realized reduced risk performance. Regarding to IEC 61508/ IEC 61511, the several typical problems in SIS engineering practice should be paid attention and solved. That includes risk analysis, safety requirement specification, type selection and structure design of SIS equipments, SIL evaluation of safety instrument function （SIF）, typical function safety management activities, and how to carry out safety evaluate of SIS system in existing unit. To carry out IEC 61508/ 61511 and SIS engineering practice based on the performance are to find out the balance between the cost for safety monitor measures and the benefit from reducing risk.
出处
《石油化工自动化》
CAS
2010年第1期1-7,37,共8页
Automation in Petro-chemical Industry
