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Based on the previous background regarding sacrificial anode protection for water-cooled reactors, the following are the areas in such reactors where corrosion is most likely to occur and where sacrificial anodes should be installed first: the secondary loop cooling water system, including carbon steel cooling pipes, condenser tube sheets, and cooling water pump casings. These components are in constant contact with cooling media containing impurities, and junctions between different metals are prone to galvanic corrosion; hence they represent the key areas for installing sacrificial anodes. The steel structure of the spent fuel pool, including its steel lining, underwater lifting guides, and internal support components, is exposed to a boron-containing water environment for extended periods, which makes it susceptible to uniform corrosion; therefore, zinc-based sacrificial anodes must be installed. In the tube sheet, flanges, and inlet end of the tube bundle of the waste heat rejection heat exchanger, there is a risk of combined flow-induced erosion and coulombic corrosion, resulting in a rapid rate of local corrosion; therefore, anodes need to be installed accordingly. Components associated with seawater cooling systems: the seawater filters, pipe elbows, and valve interiors in coastal seawater-cooled reactors are exposed to high levels of chloride ions in seawater, which poses a very high risk of pitting; therefore, aluminum-based sacrificial anodes are required as supplementary protection. Dead corners in hydrophobic/waste discharge pipelines – areas where liquid accumulates at the lower parts of the pipelines, blind ends, and weld areas – are prone to the formation of closed-cell batteries that lead to corrosion beneath the scale. It is necessary to install small anodes in these areas.