Document: NUREG-0800
Document ID: ccdd2795-5741-481a-9873-fd92f6379656
Document Type: srp
Title: CONDENSATE STORAGE FACILITIES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550046.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.6
CFR Part: 
CFR Title: 

Content:
losing the capability to perform their safety functions. The subject SSCs are those necessary to ensure (1) the integrity of the reactor coolant pressure boundary, (2) the capability to shut down the reactor and maintain it in a safe-shutdown condition, or (3) the capability to prevent or mitigate the consequences of accidents that could result in potential offsite exposures comparable to the guideline exposures of 10 CFR Part 100. When the plant design includes the CSF as an essential source of cooling water to prevent or mitigate the consequences of accidents or to shut down the reactor and maintain it in a safe- shutdown condition, those portions of the CSF that perform this essential function must be capable of withstanding the effects of an earthquake. Meeting the requirements of GDC 2 provides assurance that adequate reactor cooling will be available in the event of an earthquake, thus preventing offsite exposures that exceed the guidelines in 10 CFR Part 100. GDC 2 requires that SSCs important to safety shall be designed to withstand the effects of tornadoes. Regulatory Guides 1.76 and 1.117 identify the characteristics of a design-basis tornado (DBT) and the SSCs that should be designed to withstand the effects of such a tornado and still remain functional. The CSF provides makeup water to systems that remove heat from the reactor if normal heat removal methods fail or are unavailable. In the event of a DBT, severe damage may occur to those systems that are not designed to withstand these effects. Compliance with GDC 2 provides assurance that the CSF will perform its safety function in the event of a DBT. GDC 2 also requires that SSCs important to safety shall be designed to withstand the effects of floods. Regulatory Guides 1.59 and 1.102 identify the characteristics of a design-basis flood (DBF) and the SSCs that should be designed to withstand the effects of such an event and still remain functional. The CSF provides makeup water to systems that remove