Document: NUREG-0800
Document ID: 48fcca4d-4efe-4600-b4ca-9911efb87843
Document Type: srp
Title: and 5.2.1.2.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070446.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.1.1
CFR Part: 
CFR Title: 

Content:
t structures, systems, and components be designed, fabricated, erected, constructed, tested and inspected to the highest quality standards commensurate with the importance of the safety function to be performed. The steam generator may be relied upon to perform safety functions such as removing decay heat or supplying steam to engineered safety feature pumps. It also forms a portion of the reactor coolant pressure boundary. This SRP Section evaluates the design, selection, fabrication, cleaning and chemistry controls of the steam generator materials. Regulatory Guide 1.85 describes acceptable ASME code cases that may be used in materials selection and fabrication. Meeting the requirements of GDC 1 and the positions of Regulatory Guide 1.85 assures system integrity and the ability to support emergency core cooling. 2. GDC 14 requires that all RCPB components be designed and constructed such that there is an extremely low probability that these components will fail and cause a primary leak or loss of coolant accident. The steam generator is an integral part of the reactor coolant pressure boundary that performs the vital function of separating the radioactive primary DRAFT Rev. 3 - April 1996 5.4.2.1-8 system from the clean secondary system. Primary leakage into the secondary system could lead to the direct release of radioactivity outside of the containment. Meeting GDC 14 design and construction standards will ensure that the potential for a primary to secondary leak and contamination of the secondary is minimized thus reducing the potential for release of radioactivity outside of the containment. 3. GDC 15 requires that the reactor coolant pressure boundary be designed, constructed, and tested with sufficient margin to assure that design conditions are not exceeded during normal operation or anticipated operational occurrences. The steam generator is a part of the reactor coolant pressure boundary and provides for emergency core cooling under certain transients.