Requalification Experimental Study on Life Extension of Electrical Instrument Equipment in Nuclear Power Plant

Chen Qing; Guo Xing; Gao Xuan; Qiu Xinyuan; Wang Guangjin; Duan Xuxing; Zhao Chuanli; Jiang Shenghan

doi:10.13832/j.jnpe.2022.05.0217

Volume 43 Issue 5

Oct. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(5): 217-222

Chen Qing, Guo Xing, Gao Xuan, Qiu Xinyuan, Wang Guangjin, Duan Xuxing, Zhao Chuanli, Jiang Shenghan. Requalification Experimental Study on Life Extension of Electrical Instrument Equipment in Nuclear Power Plant[J]. Nuclear Power Engineering, 2022, 43(5): 217-222. doi: 10.13832/j.jnpe.2022.05.0217

Citation:

Chen Qing, Guo Xing, Gao Xuan, Qiu Xinyuan, Wang Guangjin, Duan Xuxing, Zhao Chuanli, Jiang Shenghan. Requalification Experimental Study on Life Extension of Electrical Instrument Equipment in Nuclear Power Plant[J]. Nuclear Power Engineering, 2022, 43(5): 217-222. doi: 10.13832/j.jnpe.2022.05.0217

Citation:

Chen Qing, Guo Xing, Gao Xuan, Qiu Xinyuan, Wang Guangjin, Duan Xuxing, Zhao Chuanli, Jiang Shenghan. Requalification Experimental Study on Life Extension of Electrical Instrument Equipment in Nuclear Power Plant[J]. Nuclear Power Engineering, 2022, 43(5): 217-222. doi: 10.13832/j.jnpe.2022.05.0217

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Requalification Experimental Study on Life Extension of Electrical Instrument Equipment in Nuclear Power Plant

doi: 10.13832/j.jnpe.2022.05.0217

1.
Nuclear Power Institute of China, Chengdu, 610213, China
2.
CNNC Nuclear Power Operation Mangemant Co., Ltd., Haiyan, Zhejiang, 324300, China

Received Date: 2021-10-19
Accepted Date: 2021-10-19
Rev Recd Date: 2022-04-21
Publish Date: 2022-10-12

Abstract

Abstract

On the basis of the research results of environmental qualification of electrical instrument equipment in nuclear power plant, the life extension requalification analysis and experimental research of electrical instrument equipment in nuclear power plant are carried out. Taking the DDG-1 electrical penetration assembly (EPA) of Qinshan Nuclear Power Co., Ltd. as the research object, the principles for requalification experimental study are formulated according to the actual operation. Based on these principles, the test scheme, test item sequence and EPA repair basis and scheme are determined by combining the analysis method, and requalification experimental study is carried out on this basis. The properly repaired DDG-1 EPA passed the test of equipment performance with time, seismic test, thermodynamic test under design basis accident (DBA) conditions and ultimate electrical performance test after DBA in sequence according to the test scheme. Its state is intact after the test, which indicates that the DDG-1 EPA can achieve the expected goal of continuing to extend its life for 20 years after proper repair, and can provide guidance and reference for the requalification experimental study of other electrical instruments in nuclear power plants.
- Nuclear power plant,
- Electrical instrument equipment,
- Electric penetration assembly (EPA),
- Life extension,
- Requalification

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References(8)

References

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