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首页> 外文会议>Symposium on methods for the assessment of structural integrity of components and structures >Methods for the Assessment of Structural Integrity of Components and Structures -Regulator's View - Nuclear Applications
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Methods for the Assessment of Structural Integrity of Components and Structures -Regulator's View - Nuclear Applications

机译：评估组件结构完整性的方法和结构 - 调节器的视图 - 核应用

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The Health and Safety Executive (HSE) regulates the nuclear industry in the United Kingdom via its Nuclear Installations Inspectorate (NII). NII oversees a wide range of nuclear sites including Magnox power stations, Advanced Gas Cooled Reactor power stations, a Pressurised Water Reactor and the Sellafield site (over 100 assorted plants). These sites have a wide diversity of structural integrity issues. HSE's and therefore NII's approach to regulation is one of goal setting rather than prescription. All of the licensed sites have a licence with 36 standard conditions. NII's goal setting intent allows each licensee to develop compliance arrangements which best suit their business so that whilst the conditions are the same for each licence the detailed arrangements for meeting these conditions vary from licensee to licensee. HSE has produced a set of Safety Assessment Principles (SAPs) which have been published. SAPs are used by NII to establish whether a safety case is adequate. Publishing the SAPs provides transparency to the licensees so that they know what NII expects from them. The SAPs also help to provide a consistent approach from Nil's inspectors. The SAPs cover all the relevant topic areas for nuclear regulation including structural integrity. Unlike the approach used by the United States Nuclear Regulatory Commission the SAPs do not specify that certain codes or methods must be used. Instead the SAPs provide targets that need to be met by a nuclear safety case. For structural integrity cases these targets vary depending on the contribution that a structure, system or component makes to nuclear safety. For items such as reactor pressure vessels where the vessel is the principal means of ensuring safety a Special Case procedure is followed. Although NII does not demand that specific assessment methods are used it still has to be convinced that a licensee has an adequate safety case. NII therefore challenges new safety cases and methodologies as they are presented. The extent of the challenge will depend on the difference in the current case and methodologies compared to those that have been previously assessed.
机译：健康和安全执行（HSE）通过其核设施监察署（NII）规范了英国的核工业。 NII监督各种核动物，包括磁铁电站，先进的气体冷却反应器发电站，加压水反应堆和SellAfield网站（超过100种型植物）。这些网站具有广泛的结构完整性问题。 HSE是，因此NII的监管方法是目标设置而非处方之一。所有许可网站都有36条标准条件的许可证。 NII的目标设定意图允许每个被许可人开发最适合其业务的合规性安排，以便每个许可证的条件相同，以满足这些条件的详细安排因被许可人而异。 HSE制作了一套发表的安全评估原则（SAPS）。 NII使用SAP来确定安全案件是否足够。发布SAP为许可证人提供透明度，以便他们知道NII期望他们的预期。 SAP还有助于提供来自尼尔检查员的一致方法。 SAP涵盖了核规则的所有相关主题领域，包括结构完整性。与美国核监管委员会使用的方法不同，SAP没有说明必须使用某些代码或方法。相反，SAP提供了核安全案件需要满足的目标。对于结构完整性情况，这些目标根据结构，系统或组分对核安全的贡献而变化。对于诸如电抗器压力容器等物品，其中容器是确保安全性的主要方法，遵循特殊情况程序。虽然NII不要求使用特定的评估方法，但它仍然必须相信被许可方有足够的安全案例。因此，NII挑战了新的安全案例和方法。挑战的程度将取决于与先前评估的那些相比的当前案例和方法的差异。

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