Document: NUREG-0800
Document ID: a0bd8078-b077-48b3-83a2-5710c3303535
Document Type: srp
Title: BARRIER DESIGN PROCEDURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340544.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.3
CFR Part: 
CFR Title: 

Content:
and operate nuclear power plants. These documents are made available to the public as part of the Commission's policy to Inform the nuclear industry and the general public of regulatory procedures end policies. Standard review plans are not substitutes for regulatory guides or the Commission's regulations and compliance with them Is not required. The standard review plan sections are keyed to the Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants. Not all sections of the Standard Format have a corresponding review plan. Published standard review plans will be revised periodically. as appropriate, to accommodate comments and to reflect new informa- tion and experience. Comments and suggestions for Improvement will be considered and should be sent to the U.S. Nuclear'Regulatory Commission. Office of Nuclear Reactor Regulation, Washington, D.C. 205E A. General Design Criterion 2 as it relates to structures, systems, and components, capability to withstand, without loss of safety functions, the effects of tornadoes and the appropriate combinations of the effects of normal and accident conditions with the effects of the natural phenomena. B. General Design Criterion 4 as it relates to structures, systems, and components being appropriately protected against dynamic effects, including the effects of missiles, pipe whipping, and discharging fluids that may result from equipment failures and from events and conditions outside the nuclear power unit. Specific criteria necessary to meet the relevant requirements of General Design Criteria 2 and 4 are as follows: 1. For Local Damage Prediction a. In Concrete Sufficient thickness of concrete should be provided to prevent perforation, spalling, or scabbing of the barriers in the event of missile impact. Several empirical equations, such as the modified NDRC-formula (Ref. 3) are available to estimate missile penetration into concrete. These equations should be used to determine the required barrier