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Safety Instrumented Systems: Reconciling the Traditional Prescriptive Approach in API RP 14C With More Recent Risk-ased Approach Methods in IEC 61511

机译:安全仪表系统:将API RP 14C中的传统说明性方法与IEC 61511中最新的风险评估方法相协调

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Safety instrumented systems for offshore production platforms have traditionally been specified using API RP 14C. Its prescriptive approach does not sit well alongside the more recent risk-based approach in international standard IEC 61511. This later standard requires the safety integrity of these protective systems to be commensurate with the risks they are protecting against, a concept that is not addressed in API RP 14C. A combination of both approaches is proposed to provide assured safety performance, reduced spurious trips, and minimum cost of testing during their operational life.
机译:传统上,使用API​​ RP 14C指定用于海上生产平台的安全仪表系统。它的说明性方法与国际标准IEC 61511中最新的基于风险的方法不太相符。此更高的标准要求这些保护系统的安全完整性与它们所要防范的风险相称,这一概念未在本文档中得到解决。 API RP 14C。建议将这两种方法结合起来使用,以确保安全性能,减少误跳闸并在其使用寿命内降低测试成本。

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