Document: NUREG-0800
Document ID: 988a555f-fdfa-4452-829d-c06654bfbba5
Document Type: srp
Title: Initial Plant Test Program - Design Certification and New License Applicants
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660618.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.2
CFR Part: 
CFR Title: 

Content:
t be included in the ITAAC. Detailed analyses should be retained in Tier 2. (7) Hazard (e.g., flood, fire) Protection Features - Special features (switches, valves, dampers) used to provide protection from hazards should be included in the appropriate system design description. Other features such as walls, doors, curbs, etc., should also be covered, but in most cases these should be in an ITAAC for buildings or structures. (8) Special Cases for Seismic - There may be some nonsafety equipment that requires special treatment because of its importance to safety. An example is the seismic analysis of the BWR main steam piping that provides a fission product leakage path to the main condenser and allows the elimination of the traditional main steam isolation valve control system. iv. Seismic and ASME code classifications. The safety classification of structures, systems, and components are described in each system's design description. The functional drawings identify the boundaries of the ASME Code classification that are applicable to the safety class. The generic Piping Design ITAAC includes a verification of the design report to ensure that the appropriate code design requirements for the system's 14.3-26 March 2007 safety class have been implemented. Therefore, design pressures and temperatures for fluid systems do not need to be specified in the DD except in special cases such as ISLOCA where the system has to meet additional requirements. v. System operation. The DD should provide a description of the important performance modes of operation of the system. This should include realignment of the system following an actuation signal (e.g., a safety injection signal for a PWR or a LOCA signal for a BWR). vi. Alarms, Displays and Controls. The DD for the systems should describe the important system alarms, displays (do not use the term "indications"), and controls available in the control room. Important instrumentation that is required for direct operation or