Document: NUREG-0800
Document ID: f4b8f0c1-9a14-46be-88c9-a6cb74d64dff
Document Type: srp
Title: Rev. 4 — June 1997
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500499.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
displayed and the characteristics of the displays (e.g., location, range, type, and resolution) support operator awareness of system and plant status and will allow plant operators to make appropriate decisions. The review of information displays for manually controlled actions should include confirmation that displays will be functional (e.g., power will be available and sensors are appropriately qualified) during plant conditions under which manual actions may be necessary. Safety system bypass and inoperable status indication should conform with the guidance of Reg. Guide 1.47, "Bypassed and Inoperable Status Indication for Nuclear Power Plant Safety Systems." 14. Section 5.9 — Control of Access Administrative control is acceptable to assure that the access to the means for bypassing safety system functions is limited to qualified plant personnel and that permission of the control room operator is obtained to gain access. The review of access control should confirm that design features provide the means to control physical access to protection system equipment, including access to test points and means for changing setpoints. Typically such access control includes provisions such as alarms and locks on safety system panel doors, or control of access to rooms in which safety system equipment is located. Review of digital computer-based systems should consider controls over electronic access to safety system software and data. Controls should address access via network connections, and via maintenance equipment. 15. Section 5.10 — Repair Digital safety systems may include self-diagnostic capabilities to aid in troubleshooting. BTP HICB-17 describes characteristics that digital computer-based diagnostic systems should exhibit. 16. Section 5.11 — Identification Guidance on identification is provided in Reg. Guide 1.75, which endorses IEEE Std 384. The preferred identification method is color coding of components, cables, and cabinets. Configuration management