NB/T 20252-2013.Design criteria for engineered-safety-feature air cleaning units in PWR nuclear power plants. 1范围 NB/T 20252规定了压水堆核电厂专设安全设施空气净化装置与部件的设

NB/T 20226-2013.Qualification of class 1E transformers for nuclear power plants. 1范围 NB/T 20226规定了安装在核电厂反应堆安全壳外的新制造的安全级(1E级)变压器在设计基准工况下执行所需安全功能的要求。 NB

NB/T 20227-2013.Qualification of switchgear assemblies for class 1E applications in nuclear power plants. 1范围 NB/T 20227规定了安装在核电厂反应堆安全壳外的户内安全级成套开关设备鉴定

NB/T 20228-2013.Type testing of measuring sensors and transducers of safety important instrumentation and control system for nuclear power plants. 1范围

NB/T 20231-2013.Design criteria for engineered safety features of pressurized water reactor nuclear power plants. 1范围 NB/T 20231规定了压水堆核电厂专设安全设施(以下简称“专

NB/T 20222-2013.Ageing management guideline of steam generator in PWR nuclear power plants. 1范围 NB/T 20222规定了压水堆核电厂立式U形传热管自然循环蒸汽发生器(Steam Genarator,以下

NB/T 20223-2013.Maintenance guide for safety critical mechanical equipments of nuclear power plant. 1范围 NB/T 20223给出了压水堆核电厂安全重要机械设备的定义及相应设备的维修策略。 NB/T

NB/T 20225-2013.Qualification of class 1E connection assemblies for nuclear power plants. 1范围 NB/T 20225规定了核电厂安全级连接件鉴定的基本要求、指导和方法。 NB/T 20225适用于和相关电缆或

NB/T 20085-2012.Qualification procedure for safety class high-voltage switchboard applied in nuclear power plants. 1范围 NB/T 20085规定了安装于核电厂安全壳外的安全级(6~1

NB/T 20086-2012.Assessing, monitoring, and mitigating aging effects on class 1E equipment used in nuclear power plants. 1范围 NB/T 20086为评估、监测和缓解核电厂安全级电