Document: NUREG-0800
Document ID: 5b9c2853-c5ef-431a-a30d-b20796f0f978
Document Type: srp
Title: Completion of Protective Action (IEEE Std 603-1991, Clause 7.3)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1601/ML16019A107.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.3
CFR Part: 
CFR Title: 

Content:
The staff’s review of this item should include review of functional and logic diagrams to ensure that “seal-in” features are provided to enable system-level protective actions to go to completion. The seal-in feature may incorporate a time delay as appropriate for the safety function. Additionally, the seal-in feature need not function until it is confirmed that a valid protective command has been received, provided the system meets response time requirements.