South China Regional Office conducts nuclear safety inspection on Changjiang Nuclear Power Unit 3

Recently, the South China Regional Office of Nuclear and Radiation Safety Inspection of the Ministry of Ecology and Environment organized an inspection team to conduct a routine nuclear safety inspection on the commissioning results and the implementation of the operational quality assurance program at Unit 3 of the Changjiang Nuclear Power Plant——the first "Hualong One" nuclear power unit of Huaneng Hainan Changjiang Nuclear Power Co., Ltd. As the unit completed its 168-hour full-power trial operation and officially entered the commercial operation phase, a comprehensive verification of the commissioning quality of the new unit and the management level of the new team has become a key measure to consolidate the primary responsibility of the operating organization.

During the verification of commissioning results, the inspection team focused on the final acceptance of performance verification. As the "health check report" for the unit's handover to operation, the completeness and authenticity of the commissioning results are directly related to the credibility of subsequent operational decisions. The inspection team not only spot-checked and reviewed the evaluation of commissioning test results and compliance with acceptance criteria as required by the commissioning program, with particular attention to transient test data, key equipment parameter trends, and closed-loop management of design changes, but also traced back to original records and defect handling processes to ensure that the commissioning results are genuinely qualified and valid.

In terms of operational management verification, the inspection team focused on the core concern of whether the operating organization could smoothly transition from "commissioning mode" to "operational mode." The inspection team conducted a comprehensive and detailed inspection of the implementation of the operational quality assurance program, operational performance and functions, radiation protection, and radioactive waste management for Unit 3, making every effort to ensure the efficient operation of systems such as operational management and experience feedback.

In response to the new risks posed by the new team and new equipment to the safe and stable operation of the unit, the inspection team adhered to a problem-oriented approach and bottom-line thinking. The inspection team required the operating organization to thoroughly investigate the root causes of the identified problems, implement thorough rectification from the systemic root, and draw inferences to eliminate similar hidden dangers. The South China Regional Office stated that it will continue to uphold precise, strict, and full-process supervision, firmly address management deficiencies of the new team, closely monitor operational risks of the new unit, urge the operating organization to always prioritize nuclear safety, and inject sustained and robust regulatory momentum into the long-term safe and reliable operation of the new unit.