Document: NUREG-0800
Document ID: f48fc6fe-7c52-4612-b75c-034cedcfeb13
Document Type: srp
Title: STEEL CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070325.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.2
CFR Part: 
CFR Title: 

Content:
and obtain the expected frequency of the most severe occurrences. These data are then used to specify design requirements of nuclear power plant components, including the containment, to be evaluated during construction permit (CP), operating license (OP), combined license (COL), or early permit reviews or for site parameter envelopes in the case of standard design certifications, thereby ensuring that the components will function as required. Meeting this requirement provides assurance that steel containment structures will be designed to withstand the effects of natural phenomena and will help to ensure that those portions of the facility that are important to safety will function to maintain the plant in a safe condition. 3. Compliance with GDC 4 requires that nuclear power plant structures 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 (including LOCAs). SRP Section 3.8.2 cites acceptance criteria, standards, and codes so that steel containments will resist dynamic effects, including missiles and pipe whipping, discharging fluids, and other events (including LOCA effects). Meeting this requirement provides assurance that structures covered by this SRP section will withstand missile impacts associated with tornadoes or other external sources, including aircraft, thus decreasing the probability that these events could cause accidents. 4. Compliance with GDC 16 requires that the reactor containment and its associated systems be provided to establish an essentially leaktight barrier against uncontrolled release of radioactivity to the environment and to ensure that design conditions important to safety are not exceeded for as long as required for postulated accident conditions. The steel containment is designed, constructed, and tested to provide a leaktight barrier. A typical structure is made of steel plates that are shop