7.2.3.2.2 Activation of a Safety In

7.2.3.2.2 Activation of a Safety Instrumented SystemA safety instrumented system is considered to have been activated when called upon to function by a valid signalregardless of whether or not the SIS responds. A single initiating event may result in multiple SIS activations (e.g.facility-wide power failure) with each SIS activation being counted separately. Inadvertent or intentional activationduring maintenance activities should not be counted as a Tier 3 PSE, but may be counted in Tier 4.SIS activation that is configured for equipment protection with no related LOPC protection should not be counted as aTier 3 PSE.7.2.3.2.3 Activation of Mechanical Shutdown SystemA mechanical shutdown system is considered to have been activated when called upon to function by a valid signal,regardless of whether or not the mechanical shutdown system responds. Inadvertent or intentional activation duringmaintenance activities should not be counted as a Tier 3 PSE, but may be counted in Tier 4.PROCESS SAFETY PERFORMANCE INDICATORS FOR THE REFINING AND PETROCHEMICAL INDUSTRIESMechanical shutdown system activation that is configured for equipment protection with no related LOPC protectionshould not be counted as a Tier 3 PSE.7.2.3.2.4 Activation of Pressure Relief Device (PRD) Not Counted as Tier 1 or Tier 2A PRD is considered to have been activated when the system pressure reaches the device set point whether or notthe PRD Derforms as desianed. A sinale initiatina event mav result in activation of multiole PRDs (e.a, facilitv-wide

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7.2.3.2.2安全仪表系统 的激活 无论是否由SIS响应，当通过有效信号调用安全仪表系统时，都将其视为已激活。单个启动事件可能会导致多个SIS激活（例如， 设施范围内的电源故障），而每个SIS激活都将单独计数。 在维护活动中的无意或故意激活不应被视为Tier 3 PSE，而应在Tier 4中进行计数。 配置用于设备保护且没有相关LOPC保护的SIS激活不应被视为 Tier 3 PSE。 7.2.3.2.3机械关闭系统的激活 不论机械停机系统是否响应，当通过有效信号调用机械停机系统时，都已将其视为已激活。 维护活动中的无意或故意激活不应被视为Tier 3 PSE，而应被视为Tier4。精炼 和石化行业的过程安全性能指标 机械停机系统的激活被配置用于设备保护，而没有相关的LOPC保护 不应计为Tier 3 PSE。 7.2.3.2.4泄压装置（PRD）的激活不算作第1层或第2层， 无论系统压力是否达到设备设定点，都认为PRD已被激活 所需的PRD Derforms。鼻内初始化事件可能会导致多分子PRD的激活（例如，在整个范围内

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结果 (简体中文) 2:[复制]

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7.2.3.2.2 Activation of a Safety Instrumented System A safety instrumented system is considered to have been activated when called upon to function by a valid signal regardless of whether or not the SIS responds. A single initiating event may result in multiple SIS activations (e.g. facility-wide power failure) with each SIS activation being counted separately. Inadvertent or intentional activation during maintenance activities should not be counted as a Tier 3 PSE, but may be counted in Tier 4. SIS activation that is configured for equipment protection with no related LOPC protection should not be counted as a Tier 3 PSE. 7.2.3.2.3 Activation of Mechanical Shutdown System A mechanical shutdown system is considered to have been activated when called upon to function by a valid signal, regardless of whether or not the mechanical shutdown system responds. Inadvertent or intentional activation during maintenance activities should not be counted as a Tier 3 PSE, but may be counted in Tier 4. PROCESS SAFETY PERFORMANCE INDICATORS FOR THE REFINING AND PETROCHEMICAL INDUSTRIES Mechanical shutdown system activation that is configured for equipment protection with no related LOPC protection should not be counted as a Tier 3 PSE. 7.2.3.2.4 Activation of Pressure Relief Device (PRD) Not Counted as Tier 1 or Tier 2 A PRD is considered to have been activated when the system pressure reaches the device set point whether or not the PRD Derforms as desianed. A sinale initiatina event mav result in activation of multiole PRDs (e.a, facilitv-wide

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结果 (简体中文) 3:[复制]

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7.2.3.2.2激活安全仪表系统 当安全仪表系统被有效信号调用运行时，该系统被视为已被激活 不管SIS是否响应。单个启动事件可能导致多个SIS激活（例如。 设备范围内的电源故障），每个SIS激活单独计算。无意或有意激活 在维护活动期间，不应将PSE计算为3级，但可将其计算为4级。 为没有相关LOPC保护的设备保护配置的SIS激活不应算作 第3级PSE。 7.2.3.2.3启动机械停车系统 当一个有效信号要求机械关闭系统工作时，该系统被认为已被激活， 不管机械关机系统是否响应。在 维修活动不应算作3级PSE，但可以算作4级PSE。 炼油和石化工业过程安全性能指标 为设备保护配置的机械关机系统激活，无相关的LOPC保护 不应算作3级PSE。 7.2.3.2.4启动不算作1级或2级的泄压装置（PRD） 当系统压力达到设备设定值时，无论是否 PRD按照设计进行了改造。单核起始事件mav导致多极prd（e.A，设备范围）激活

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