ISO 11231:2010 航天系统 随机风险评估(PRA)

标准编号:ISO 11231:2010

中文名称:航天系统 随机风险评估(PRA)

英文名称:Space systems — Probabilistic risk assessment (PRA)

发布日期:2010-08

标准范围

在认为有必要应用定量风险评估的情况下,ISO 11231:2010支持和补充ISO 17666中定义的风险管理流程的实施。ISO 11231:2010定义了进行定量风险评估的原则、流程、实施和要求,并解释了应用于安全性的概率风险评估(PRA)的细节。虽然PRA可以应用于涉及成本和进度的项目风险管理,但这种应用超出了ISO 11231:2010的范围。ISO 11231:2010规定了在空间方案和项目中使用PRA技术评估安全或飞行任务风险和成功的基本要求和程序。ISO 11231:2010适用于所有涉及以下方面的国际空间项目:用于在太空运送人员的空间飞行器的设计;人类居住的空间和非地球行星站的设计;由核材料提供动力或运载核材料的空间和运载火箭的设计;当局或客户指示的其他项目。这些类型的项目通常涉及可能导致公众、宇航员或飞行员或劳动力死亡或重伤,或关键或高价值设备和财产损失的场景、事件链或活动。对于其他类型的项目,PRA由项目管理层自行决定执行。

ISO 11231:2010 supports and complements the implementation of the risk management process defined in ISO 17666 in situations when application of quantitative risk assessment is deemed necessary.ISO 11231:2010 defines the principles, process, implementation and requirements for conducting a quantitative risk assessment, and explains the details of probabilistic risk assessment (PRA) as applied to safety. While PRA can be applied to project risk management involving cost and schedule, this application is outside the scope of ISO 11231:2010.ISO 11231:2010 provides the basic requirements and procedures for use of PRA techniques to assess safety or mission risk and success in space programmes and projects. ISO 11231:2010 is applicable to all international space projects involving:

  • the design of space vehicles for the transportation of personnel in space;
  • the design of space and non-terrestrial planetary stations inhabited by human beings;
  • the design of space and launch vehicles powered by, or carrying, nuclear materials;
  • other projects as directed by authorities or clients.
These types of projects generally involve scenarios, chains of events or activities that could result in the death of, or serious injury to, members of the public, astronauts or pilots, or the workforce, or the loss of critical or high-value equipment and property. For other types of projects, it is intended that PRA be performed at the discretion of the project management.

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