8月6日，由中核五公司承建的中广核“华龙一号”三澳核电项目1号机组核心部件之一——反应堆压力容器顶盖，在经历了大约两小时的吊装后，于18时46分成功完成首次吊装到位。反应堆压力容器顶盖首次扣盖的顺利完成是对中核五公司核电建设能力的又一次展现，为接下来的冷试工作奠定了坚实的基础，同时也标志着中广核三澳核电项目1号机组的建设工作进入了新阶段。

中广核“华龙一号”反应堆压力容器顶盖体是反应堆冷却剂系统压力边界的重要组成部分，也是核岛堆芯放射性安全防护的第二道重要屏障，其重要性不言而喻。在项目部的精心组织下，施工团队严格遵循施工方案，从多个角度对吊装过程中可能出现的突发情况进行沙盘推演，准确识别现场可能存在的各种风险因素，并据此制定切实可行的应对措施。这些准备工作，极大地提高了施工效率，确保反应堆压力容器顶盖吊装就位的过程质量可控、安全可靠。

On August 6, the reactor pressure vessel top cover, one of the core components of Unit 1 of CGN's "Hualong One" Sanao Nuclear Power Project, built by CNNC 5, was successfully lifted for the first time at 18:46 after about two hours of lifting. The successful completion of the first closure of the reactor pressure vessel top cover is another demonstration of the nuclear power construction capability of CNNC No. 5 Company, laying a solid foundation for the following cold test work, and also marking the construction of Unit 1 of the Three Australian nuclear power project of CGN has entered a new stage.

The top body of the pressure vessel of CGN's Hualong One reactor is an important part of the pressure boundary of the reactor coolant system, and also the second important barrier of radioactive safety protection of the nuclear island core, and its importance is self-evident. Under the careful organization of the project department, the construction team strictly follows the construction plan, conducts sand table deduction for possible emergencies in the hoisting process from multiple angles, accurately identifies various risk factors that may exist on the site, and develops feasible countermeasures accordingly. These preparations greatly improve the construction efficiency and ensure the quality control, safety and reliability of the process of lifting the reactor pressure vessel top lid into place.