核临界性 - 安全尺度 - 核建筑尺寸与核临界安全尺寸限制的合规验证

[中文适用范围]： 本文件提供了与亚临界尺寸限制的确定及其遵守相关的指导、要求和建议： ——设计中规定的几何尺寸（设计尺寸），或 — 实际尺寸。 本文件适用于含有裂变材料的核设施，但核动力反应堆堆芯除外。 本文件还可适用于核设施边界外裂变材料的运输。 本文件不包括基于燃料组件、燃料棒和燃料芯块的尺寸和布局的亚临界尺寸控制。 本文件没有具体规定与裂变和非裂变材料成分控制相关的要求。 与基于规范（例如设计期间详细绘制的图纸）的单元制造和布局相关的质量保证是本文件的先决条件。 质量保证对于确保单元几何形状、一般用途和预期功能之间的一致性非常重要。 [外文原描述]： This document provides guidance, requirements and recommendations related to determination of limits on subcriticality dimensions and to their compliance with: — geometrical dimensions specified in the design (design dimensions), or, — actual dimensions. This document is applicable to nuclear facilities containing fissile materials, except nuclear power reactor cores. This document can also be applied to the transport of fissile materials outside the boundaries of nuclear establishments. Subcriticality dimension control based on dimensions and layout of fuel assembly, fuel rods and fuel pellets are not covered by this document. This document does not specify requirements related to the control of fissile and non-fissile material compositions. The Quality Assurance associated with the fabrication and layout of the unit based on specifications (e.g. drawings elaborated during design) is a prerequisite of this document. The Quality Assurance is important to ensure the consistency between the unit geometry, its general purpose and its intended function.