标准摘要
[中文适用范围]： 本文件确定了轻水小型模块化反应堆（SMR）中现有IEC SC 45A标准尚未充分解决的一系列重要问题，这些问题在修订现有出版物或提出新工作项目时可以考虑。是否解决这些问题以及在哪份出版物中解决将由各SC 45A工作组决定。尽管有许多先进的第四代SMR项目正在进行中，但本文件不涵盖其具体需求。 本文件结构如下： • 第5条列出了SMR的主要特点，这些特点通常不在大型反应堆中出现或对SMR特别重要，可能需要IEC SC 45A标准中未提供的特定或额外要求和推荐。 • 第6条为每个工作组提出了可能在现有出版物修订或新工作项目主题中考虑的一系列问题。 • 第7条提出了对SMR重要但不适合现有工作组范围的主题。 [外文原描述]： IEC TR 63335:2021 identifies a number of issues of particular importance to light water Small Modular Reactors (SMRs), which are not currently adequately addressed by existing IEC SC 45A standards, and that could be considered when revising existing publications or that could be the object of new work item proposals. Whether each of these issues will indeed be addressed, and if so in which publication, will be the decision of each SC 45A working group. Though there are a number of advanced Generation IV SMR projects underway, their specific needs are not covered by this document.
英文名称Nuclear power plants - Instrumentation and control systems, control rooms and electrical power systems - Specific features of small modular reactors and needs regarding standards