BS EN 60880-2009 核电站.对安全重要的仪器和控制系统.形成A类功能的基于计算机系统的软件问题

标准号：BS EN 60880-2009
中文标准名称：核电站.对安全重要的仪器和控制系统.形成A类功能的基于计算机系统的软件问题
英文标准名称：Nuclear power plants - Instrumentation and control systems important to safety - Software aspects for computer-based systems performing category A functions
标准类型：F82
发布日期：2010/1/31 12:00:00
实施日期：2010/1/31 12:00:00
中国标准分类号：F82
国际标准分类号：27.120.20;35.080
引用标准：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
适用范围：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.