Qinshan Nuclear Power Plant Unit 2 of Qinshan Phase II Completes 218 Refueling Outage

At 18:30 on September 29, Unit 2 of Qinshan Phase II was successfully connected to the grid, marking the official completion of the 218 refueling outage.

During this outage, more than 5,300 tasks were completed, mainly including the PSR weakness modification for prevention of boron misdilution, addition of automatic primary coolant makeup and residual heat removal eddy current detection functions, excitation system modification for the B-train emergency diesel generator, disassembly and inspection of the turbine-generator, annual inspection of the main transformer and station service transformer, replacement of No. 2 and No. 3 seals of the No. 2 main coolant pump, disassembly and inspection of the No. 1 charging pump, modification of the nuclear island switchboards, condenser cleaning and eddy current inspection, and optimization of the pipe supports where the safety injection system safety valves are located. These important tasks have laid a solid foundation for the safe and stable operation of the unit in the next fuel cycle.

Under the unified leadership and deployment of the outage command center, all outage personnel gave full play to the guiding role of Party building joint activities. In accordance with the requirements of “proactive thinking, strengthened responsibility, timely response, proper execution, cadres on the front line, advance planning, professional coordination, and strict enforcement against violations,” they adhered to the principle of conservative decision-making, fully consolidated nuclear safety responsibilities, and strictly implemented high-risk operation control requirements to ensure the safe progress of the outage. Anchored to the company’s annual safety production “seven zeros” goal, they completed all established tasks safely, with high quality and efficiency, making every effort to ensure nuclear safety is “absolutely guaranteed with no room for error.”

Subsequently, Unit 2 of Qinshan Phase II will steadily increase power and complete the relevant tests at each power level.