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Keyword：Sanao Nuclear Power
Unit 2 of Phase I of the Sanao Nuclear Power Project Completes First Fuel Loading
Recently, Unit 2 of Phase I of CGN's Zhejiang Sanao Nuclear Power Project successfully completed its first nuclear fuel loading, marking the unit's official transition from the engineering installation phase to the new stage of commissioning with nuclear fuel in the main systems, and representing a key step toward the full completion and commercial operation of Phase I. It is reported that the fuel loading operation adopted a semi-automatic refueling system, precisely transferring 177 nuclear fuel assemblies sequentially into the reactor core. Since the commencement of nuclear island installation, the Sanao project department of China Nuclear Industry 23 Construction Co., Ltd., the contractor, has strictly followed the principles of "safety first, quality first, pursuit of excellence," and completed a series of major prerequisite tests—including nuclear circuit flushing and cold and hot performance tests—to a high standard...
2026-11-03
First Backup Emergency Diesel Generator of Hualong One Officially Available at Sanao Nuclear Power Unit 2
On October 2, the first backup emergency diesel generator (9LHW) of Hualong One completed the replacement grid connection test at Sanao Nuclear Power Unit 2 and was officially put into service. The equipment can replace any one of the original 12 emergency diesel generators (EDGs) in Phase I and Phase II projects, significantly improving the redundancy, reliability, and maintenance flexibility of the plant's emergency power supply. Sanao Nuclear Power Phase I and Phase II each have 3 emergency busbars, with one EDG configured for each busbar. However, due to the absence of cross-power supply for loads, the preventive maintenance windows of the original units were concentrated, affecting the overhaul schedule. Since 2021, Cangnan Nuclear Power has promoted the project of adding backup diesel generators, improving from the design source, building a new backup emergency diesel generator building (BDD), and constructing corridors and cables connected to each unit...
2026-10-03