Document: NUREG-0800
Document ID: 0c1520dd-863c-41b1-8f1d-07178a1da1d9
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/ML0705/ML070550088.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.3
CFR Part: 
CFR Title: 

Content:
The staff 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.