反应堆保护系统AC160平台商品级物项适用性确认过程的探讨

Discussion of Reactor AP1000 Protection System AC160 Platform Commercial Grade Dedication Process[JZ)][HS)]

摘要:

用于核安全场合的设备传统做法是从核级供应商采购模拟设备或数字化设备,美国核电业界在合格核级供应商数量不断减少的情况下,逐步开始使用商品级物项适用性确认方法(CGD),把成熟商品级产品用于核安全领域；商品级数字化仪控设备因内嵌软件,CGD方法与传统模拟设备略有不同,软件的CGD包括评审开发过程的软件配置项控制、验证和确认活动以及测试活动等要求；文章综述了美国核法规规定的核安全设备的相关要求和NRC对于数字化设备CGD的接受方法和准则,并重点介绍AP1000保护系统AC 160平台的CGD实施过程和方法,有助于国内数字化仪控设备供应商的CGD工作的开展。 

Abstract:

Generally, the analog and digital equipments used in safety- related application in nuclear plant should be procured from qualified supplier that maintained a 10CFR50, Appendix B. Because of a decrease in the number of qualified nuclear-grade vendors, numerous licensees employ commercial grade dedication method to dedicate commercial grade item for use in safety-related application. For digital I&C equipment, dedication of built-in software has some different from analog. The main works including review of software configuration control, verification and validation activity and test activity, etc, to assure the quality of the software. The paper introduces the requirements of USA nuclear law, and NRC’s approved acceptance method and process for digital I&C commercial dedication. The Paper focuses on describing the CGD process and acceptance method of AP1000 protection system AC160 platform. It's helpful for future dedication of digital I&C equipments by civil vendor. 