標準號：BS EN 60880-2009
中文標準名稱：核電站.對安全重要的儀器和控制系統(tǒng).形成A類功能的基于計算機系統(tǒng)的軟件問題
英文標準名稱：Nuclear power plants - Instrumentation and control systems important to safety - Software aspects for computer-based systems performing category A functions
標準類型：F82
發(fā)布日期：2010/1/31 12:00:00
實施日期：2010/1/31 12:00:00
中國標準分類號：F82
國際標準分類號：27.120.20;35.080
引用標準：IEC 60671;IEC 61069-2-1993;IEC 61226;IEC 61508-4;IEC 61513;ISO/IEC 9126;IAEA guide NS-G-1.2;IAEA guide NS-G-1.3
適用范圍：This International Standard provides requirements for the software of computer-based I&C systems of nuclear power plants performing functions of safety category A as defined by IEC 61226.According to the definition in IEC 61513, I&C systems of safety class 1 are basically intendedto support category A functions, but may also support functions of lower categories. Howeverthe system requirements are always determined by the functions of the highest category implemented.For software of I&C system performing only category B and C functions in NPP as defined by IEC 61226, requirements and guidance of IEC 62138 are applicable.This standard provides requirements for the purpose of achieving highly reliable software. Itaddresses each stage of software generation and documentation, including requirements specification, design, implementation, verification, validation and operation.The principles applied in developing these requirements include:– best available practices;– top-down design methods;– modularity;– verification of each phase;– clear documentation;– auditable documents;– validation testing.Additional guidance and information on how to comply with the requirements of the main part of this standard is given in Annexes A to I.