GB/T 43797-2024
General Requirements for Nuclear Power Plant Operating License Renewal Assessment (English Version)
- Standard No.
- GB/T 43797-2024
- Language
- Chinese, Available in English version
- Release Date
- 2024
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China CN / GB
- Latest
- GB/T 43797-2024
- Introduction
Interpretation of the National Standard of the People's Republic of China GB/T 43797—2024
1. Background of Standard Formulation and Analysis of Technology Evolution
The renewal evaluation of the operating license of a nuclear power plant is an important part of ensuring the safe operation of nuclear power. With the development of nuclear power technology and the passage of time in service, nuclear power plant equipment may age and experience performance degradation, which may affect the realization of its intended functions. The formulation of GB/T 43797—2024 aims to provide nuclear power plants with a scientific and standardized operating license renewal evaluation process and technical requirements to ensure the safety and reliability of nuclear power plants during the extended operation period.
2. Comparison of standard frameworks
Standard dimensions GB/T 43797—2024 Comparative analysis Scope of application Nuclear power plant operating license validity extension assessment activities, other nuclear facilities can refer to it. Compared with previous standards, the scope of application is clearer and the guiding significance for other nuclear facilities is increased. Core content Covering safety demonstration benchmark determination, overall power plant assessment, time-limited aging analysis, environmental impact assessment, etc. Added assessment requirements for conventional island equipment to strengthen safety. Technical requirements Detailed technical details from the assessment process to specific analysis methods. The technical specifications are higher and more closely aligned with international standards. 3. Implementation recommendations
3.1 Advance planning and resource allocation
Nuclear power plants should initiate renewal assessments at least five years before the expiration of their operating licenses to ensure that there is enough time to complete various assessments and improvement measures. It is recommended to set up a special working group, clarify the responsibilities of each position, and allocate resources reasonably.
3.2 Strengthen aging management review
In the aging management review, focus should be placed on the material properties, operating environment, and historical records of key equipment. For example, core equipment such as the reactor pressure vessel and the steam generator need to adopt advanced monitoring technologies (such as non-destructive testing) and data analysis methods to ensure their reliability during continued operation.
3.3 Optimizing the safety demonstration benchmark
Nuclear power plants should regularly update the safety demonstration benchmark to ensure that it is consistent with current regulations and technological developments. In particular, when applying for renewal, the latest Final Safety Analysis Report (FSAR) and related modifications must be submitted.
3.4 Strengthening Environmental Impact Assessment
Nuclear power plants should comprehensively assess the impact of continued operation on the surrounding environment based on actual operating data and predictive models. For example, a comparative analysis of the Environmental Impact Statement and monitoring data can be used to verify whether the long-term impact of the nuclear power plant on the ecosystem is acceptable.
GB/T 43797-2024 Referenced Document
- GB/T 41717-2022 Terminology of ageing management and life management for nuclear power plants
- NB/T 20476.10 Renewal of Operating License of Nuclear Power Plant Part 10: Time-limited Aging Analysis of Prestressed Concrete Containment
- NB/T 20476.11 Nuclear Power Plant Operating License Renewal Part 11: Supplementary Guidelines for Final Safety Analysis Report
- NB/T 20476.12 Renewal of Nuclear Power Plant Operating License Part 12: Guidelines for Preparation of Application Form
- NB/T 20476.5 Renewal of Nuclear Power Plant Operating License Part 5: Environmental Impact Assessment
- NB/T 20476.6 Renewal of Operating License for Nuclear Power Plants Part 6: Time-limited Aging Analysis of Reactor Pressure Vessels
- NB/T 20476.7 Renewal of operating license for nuclear power plants Part 7: Time-limited aging analysis of steam generators
- NB/T 20476.8 Renewal of Operating License for Nuclear Power Plants Part 8: Metal Fatigue Analysis
- NB/T 20476.9 Renewal of operating license for nuclear power plants Part 9: Time-limited aging analysis of electrical and I&C equipment
GB/T 43797-2024 history
- 2024 GB/T 43797-2024 General Requirements for Nuclear Power Plant Operating License Renewal Assessment
