Application of Risk-Informed Methods to In-Service Piping Inspection in Framatome Type Nuclear Power Plants

被引：0
|
作者：
Kim, Jin-Hoi [1 ]
Lee, Jeong-Seok [1 ]
Yun, Eun-Sub [1 ]
机构：
[1] NDE Engn Grp, KHNP Cent Res Inst, Daejeon 305343, South Korea
来源：
JOURNAL OF THE KOREAN SOCIETY FOR NONDESTRUCTIVE TESTING | 2014年 / 34卷 / 04期
关键词：
Risk-Informed In-Service Inspection (RI-ISI); Probabilistic Safety Assessment (PSA); Risk Reduction Worth (RRW); Core Damage Frequency (CDF); Large Early Release Frequency (LERF); High Failure Importance (HFI);
D O I：
10.7779/JKSNT.2014.34.4.311
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The Pressurized water reactor owners group (PWROG) developed and applied a risk-informed in-service inspection (RI-ISI) program, as an alternative to the existing ASME Section XI' sampling inspection method. The RI-ISI programs enhance overall safety by focusing inspections of piping at high safety significance (HSS) locations where failure mechanisms are likely to be present. Additionally, the RI-ISI program can reduce nondestructive evaluation (NDE) exams, man-rem exposure for inspectors, and inspection time, among other benefits. The RI-ISI method of in-service piping inspection was applied to 3 units (KSNPs: Korea standard nuclear power plants) and is being deployed to the other units. In this paper, the results of RI-ISI for a Framatome type (France CPI) nuclear power plant are presented. It was concluded that application of RI-ISI to the plant could enhance and maintain plant safety, as well as provide the benefits of greater reliability.
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页码：311 / 317
页数：7
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