NB/T 20521-2018.Screening and classification guidelines for ageing and life management of nuclear power plants equipment. 1范围 NB/T 20521对核电厂老化与寿命管理设备筛

NB/T 20522-2018.Eddy current examination for in-core neutron flux thimble tubes of nuclear power plant. 1范围 NB/T 20522规定了核电厂在役检查时堆芯中子通量测量指套管涡流检测的基本要求,

NB/T 20512.2-2018.Operating license extension of nuclear power plant-Part 2: mechanical components aging management review. 1范围 NB/T 20512.2规定了核电厂机械设备

NB/T 20512.3-2018.Operating license extension of nuclear power plants-Part 3: Aging management review for electrical and instrumentation and control c

NB/T 20512.4-2018.Operating license extension of nuclear power plants-Part 4: Ageing management review for structures and structural components. 1范围 N

NB/T 20513.1-2018.Preparation of periodic safety review for nuclear power plants-Part 1: General Requirements. 1范围 NB/T 20513.1规定了核电厂定期安全审查的范围和内容、策划和准

NB/T 20462-2017.Thermal analysis of spent fuel dry storage installation for pressurized water reactor. 1范围 NB/T 20462规定了压水堆乏燃料干法贮存设施热工限值、工况分类、分析方法等。 N

NB/T 20475-2017.Qualification and acceptance of boron based metallic neutron absorbers for nuclear criticality control for dry cask storage systems an

NB/T 20512.1-2018.Operating licenses extension of nuclear power plant-Part 1:Screening of aging management review and identification of time-limited a

NB/T 20447-2017RK.Overpressure protection of low pressure systems connected to the reactor coolant pressure boundary. 1范围 NB/T 20447规定了压水堆核电厂中与反应堆冷却剂压