Document: NUREG-0800
Document ID: cd6f87fe-98e4-4726-8a49-7793f2f2caf1
Document Type: srp
Title: REGIONAL CLIMATOLOGY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070225.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.1
CFR Part: 
CFR Title: 

Content:
l data is used to determine the expected frequency with which the most severe conditions occur. These data are then used to specify plant design requirements for a CP, OL, COL, or early site permit or for the site parameter envelope in the case of a standard design certification, thereby ensuring that components will continue to function as required. Meeting these requirements will provide assurance that equipment and structures will be designed to withstand the effects of natural phenomena, thus minimizing the probability that climatology-related natural phenomena will initiate an accident or prevent safety systems from performing their intended functions.15 2. Compliance with GDC 4 requires that structures, systems, and components important to safety be designed to accommodate the effects of, and be compatible with, environmental conditions associated with normal operation, maintenance, testing, and postulated accidents. The criterion also requires that such structures, systems, and components be appropriately protected against dynamic effects, including missiles. For this Standard Review Plan section, the requirements of GDC 4 are imposed on facility structures and other components that may be subject to tornado-generated missiles. Tornado missiles could cause loss of function for some safety-related structures or components, thus compromising the safety of the nuclear plant. Meeting these requirement will provide assurance that tornado-generated missiles will not result in loss of function for safety-related portions of the nuclear plant.16 3. 10 CFR 100.10(c)(2) specifies that meteorological conditions at or near the site should be considered when evaluating the acceptability of proposed sites for nuclear power plants. The requirement to consider meteorological conditions at or near the site of a proposed nuclear power plant is imposed to provide assurance that these conditions will not 2.3.1-5 DRAFT Rev. 3 - April 1996 compromise the safety of the nuclear