Document: NUREG-0800
Document ID: f03d2c71-27a1-41fd-9362-1e62c6142e13
Document Type: srp
Title: Containment Systems and Severe Accidents (Tier 1)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070653.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.11
CFR Part: 
CFR Title: 

Content:
.g., EPGs, ERGs) in Chapter 18 of the DCD Tier 2 identify the minimum set of alarms, displays, and controls necessary to perform safety functions. This minimum set should be included in Tier 1, either in the systems or in the main control room (MCR) ITAAC. These alarms should be verified by the MCR, HFE and I&C ITAAC. 7. REMOTE SHUTDOWN PANEL ITAAC Controls, displays, and alarms available on the remote shutdown panel can be identified and verified as part of the Remote Shutdown Panel (RSP) ITAAC, or identified in the system ITAAC and verified as part of the remote shutdown panel ITAAC. The EPGs and Chapter 18 of Tier 2 identify the minimum set of controls and displays necessary to perform safety functions. They will be used as guidance for establishing the needs for RSP displays and controls to be included in Tier 1. If the controls, displays, and alarms are identified in the system ITAAC, the design description should describe the system displays and controls available on the RSP. Important instrumentation should be shown on the system figure. The system ITAAC need only verify that these features exists since their performance will be addressed in the HFE and I&C ITAAC. If not shown on the system ITAAC, the designation and performance of the controls, displays, and alarms should be addressed in the RSP ITAAC. 8. MOTOR OPERATED VALVES ITAAC In addition to the MOV qualification testing (Generic Letter 89-10) required in the Basic Configuration ITAAC, MOVs with active safety functions are tested in the system ITAAC to check the capability of the as-installed MOV to operate under differential pressure. In some cases closing/opening times are specified. This addresses problems that have occurred due to 14.3-67 DRAFT Rev. 0 - April 1996 installation errors. The DCD Tier 2 should contain a complete list of safety-related MOVs which have an active function. These tests are required to be performed under pre-operational differential pressure, fluid flow, and temperature