Document: NUREG-0800
Document ID: 8780afd7-6286-4a0c-950e-1e7eedad07fa
Document Type: srp
Title: Rev. 4 —June 1997
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500463.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
milestone). The plan should address time required for requests for additional information (RAIs) and iterations of reviews. HICB will coordinate with other NRC technical branches in the review of the following I&C system design features: • The adequacy of the monitored variables, e.g., the suitability of parameters, such as pressure, for initiating operation of reactor trip or a given ESF or EAS system included in Chapter 15 of the SAR. • The acceptability of the proposed setpoints, time delays, accuracy requirements, and actuated equipment response, and consistency with the safety analysis included in Chapter 15 of the SAR. • The acceptability of the human-machine interface as described in Chapter 18 of the SAR. The coordinated reviews include the following: • The Reactor Systems Branch (SRXB) evaluates the adequacy of protective, control, display, and interlock functions and confirms that they are consistent with the accident analysis, the operating requirements of the I&C systems, and the requirements of GDC 10, 15, 28, 33, 34, and 35. • The Plant Systems Branch (SPLB) evaluates the adequacy of the requirements for the EAS systems to ensure the EAS systems satisfy the applicable acceptance criteria. These systems include compressed (instrument) air, cooling water, boration, lighting, heating, and air conditioning. This review confirms that (1) the design of the EAS systems is compatible with the single-failure requirements of the I&C systems and (2) the EAS systems will maintain the required environmental conditions in the areas containing I&C equipment. This review includes the design criteria and testing methods employed in the seismic design and installation of EAS equipment. SPLB also evaluates the adequacy of protective, control, display, and interlock functions, and confirms that they are consistent with the operating requirements of the supported system and the requirements of GDC 41 and 44. • The Containment Systems and Severe Accident Branch