Document: NUREG-0800
Document ID: 85a8d3b1-a30b-4282-8217-8bc68986145a
Document Type: srp
Title: ASME CODE CLASS 1, 2, AND 3 PIPING SYSTEMS, PIPING COMPONENTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1404/ML14042A513.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.12
CFR Part: 
CFR Title: 

Content:
ing conditions and stress limits are described in this SRP section, and ASME Code, Section III, Division 1, Subsection NF. SRP Section 3.12 also provides guidance for the staff's review of interfacing issues such as design specifications, mechanical properties, and testing, as appropriate. SRP Section 3.9.3 provides related guidance on component supports as well as the installation of pressure relief devices. The guidance cites the provisions of the ASME Code to compute stresses and stress limits, and complies with GDC 1 and 10 CFR 50.55a. Meeting the requirements of 10 CFR 50.55a and GDC 1 provides assurance that piping systems, piping components, and their associated supports important to safety are capable of performing their intended functions. 2. Compliance with GDC 2 requires that SSCs important to safety be designed to withstand the effects of expected natural phenomena combined with the appropriate effects of normal and accident conditions, without loss of capability to perform their safety functions. SRP Section 3.12 provides guidance for the staff's review of loading combinations, stresses and stress limits for the piping systems, piping components and their associated supports connected to systems to ensure the functionality of subject components and structures which are important to safety. These loading combinations include consideration of the effects of expected natural phenomena combined with the appropriate effects of normal and accident conditions. The stresses and stress limits (computed in accordance with the Code) are evaluated to ensure that equipment is designed to withstand these conditions without loss of capability to perform their intended functions. This guidance is designed to comply with GDC 2. Meeting the requirements of GDC 2 provides assurance that piping systems, piping components and associated supports are designed to withstand the effects of expected natural phenomena combined with the appropriate effects of normal and accident