作者：北京广利核系统工程有限公司 李刚, 郝爱霞，王江，梁中起，王连春，李俊卿

摘要：核安全法规HAF003中明确指出关于核电厂安全级物项“必须对保证质量所必需的每一个工作步骤都进行检查。如果不能对已加工的物项进行检查或要求附加的工艺监视，大纲必须规定间接控制措施”，以保证核电厂安全级物项能够长期安全、可靠、稳定运行。本文主要描述了多种检验方法在核电厂安全级DCS设备盘柜装配检查中的应用，通过对标准RCC-E“MC2000目视检查和机械检查”要求的详细解读和对安全级DCS设备盘柜工程设计应用特点分析，结合安全级DCS设备盘柜装配操作工艺流程，明确提出了多种检验方法：涂抹标记法、指差呼称法、扭矩校验法、隔离验证法和光源照射验证法在安全级DCS设备盘柜装配检查中的应用过程。这些检验方法已在多个核电机组安全级DCS设备盘柜装配检查中得以应用，证明了应用多种检验方法可有效提高DCS设备盘柜装配质量，能及时发现人因操作失误产生的质量不良问题，并得以纠正处理，保证了安全级DCS设备盘柜装配质量符合工程设计图纸和相关法规标准要求。

关键词：检验方法; 核级DCS; 装配检查; 质量特性；NCR；缺陷密度

Abstract: In the nuclear safety regulation HAF003, it is clearly pointed out that the safety level items of nuclear power plant "must be checked for every work step necessary to ensure the quality".If the processed items cannot be inspected or additional process monitoring is required, indirect control measures must be specified in the outline to ensure the long-term safe, reliable and stable operation of safety level items of nuclear power plant. This paper mainly describes the application of various inspection methods in the assembly inspection of safety grade DCS equipment cabinets in nuclear power plants. Through detailed study of the requirements of standard RCC-E “MC2000 visual inspection and mechanical inspection”and analysis of application characteristics of safety grade DCS equipment panel engineering design,combined with safety level DCS equipment cabinet assembly operation process, a variety of inspection methods have been clearly proposed: the application process of the smear marking method, the finger confirmation method, the torque verification method, the isolation verification method and the light source illumination verification in the assembly inspection of the safety level DCS equipment. These inspection methods have been applied in the assembly inspection of safety level DCS equipmentcabinets of several nuclear power plants. It has been proved that the application of multiple inspection methods can effectively improve the assembly quality of DCS equipment cabinets, timely detect the quality problems caused by human error, and be corrected and ensured that the assembly quality of the safety level DCS equipment cabinet assembly meets the design drawings and relevant regulatory standards.

Key words: Testing method; Nuclear safety level DCS;Assembly testing; Quality characteristics; NCR;Defect density

在线预览：多种检验方法在核级DCS设备盘柜装配检查中的应用

摘自《自动化博览》2019年11月刊