en.Wedoany.com Reported - The North China Regional Office of the Ministry of Ecology and Environment's Nuclear and Radiation Safety Supervision Station (North China Regional Office) recently organized a specialized technical exchange activity in Shanghai on the quality appraisal of Class 1E electrical control cabinets for emergency diesel generator sets in nuclear power plants. Participants included China Nuclear Power Engineering Co., Ltd., Shenzhen China Nuclear Power Design Co., Ltd., Shaanxi Diesel Engine Heavy Industry Co., Ltd., Hudong Heavy Machinery Co., Ltd., Beijing Hollysys System Engineering Co., Ltd., the 719th Research Institute of China State Shipbuilding Corporation Limited, the Nuclear Power Institute of China, and Shanghai Yuzhang Electric Co., Ltd.
Based on the results of supervision and inspection, the activity reviewed prominent existing issues in the industry. The North China Regional Office reported typical quality problems identified in recent supervision of diesel generator sets and clarified subsequent improvement requirements. Shaanxi Diesel Engine Heavy Industry Co., Ltd. and Hudong Heavy Machinery Co., Ltd. respectively presented findings from special investigations on the appraisal issues of electrical control cabinets for diesel generator sets in nuclear power projects. Relevant units engaged in in-depth discussions on key topics such as the aging mechanism of electrical control cabinets, optimization of standardized appraisal test procedures, and compliance control during the appraisal process, sharing technical experience and jointly analyzing solutions.
This activity covered the entire industrial chain, including supervision, design, research, manufacturing, and engineering application, focusing on key, difficult, and bottleneck issues in the quality appraisal of electrical control cabinets. Through multi-dimensional discussions, it promoted the sharing of technical information and established a work pattern of multi-party collaboration across the entire chain. Following consultations among all parties, a normalized collaborative tackling mechanism was established to concentrate industry technical resources on systematically resolving technical challenges in the quality appraisal of Class 1E electrical control cabinets, aiming to standardize appraisal procedures, improve appraisal standards, and perfect the quality appraisal system, thereby preventing equipment quality risks at the source.
The North China Regional Office stated that it will continue to play a coordinating role in the next step, deepen the quality supervision of the entire chain of diesel generator sets, promote normalized technical exchanges, problem reviews, and experience sharing among upstream and downstream units, consolidate the main responsibilities of all parties, enhance the quality and operational reliability of emergency diesel generator sets in nuclear power plants, and resolutely build a solid defense for nuclear and radiation safety.
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