Document: NUREG-0800
Document ID: eb0ea00d-43e4-45d1-8a5e-4daa4263d2cf
Document Type: srp
Title: EMERGENCY CORE COOLING SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550068.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.3
CFR Part: 
CFR Title: 

Content:
S-associated controls and instrumentation with regard to the features of automatic actuation, remote sensing and indication, and remote control is performed under SRP Section 7.3. This review includes consideration of the instrumentation described in TMI action plan items II.D.3 (positive indication in the control room of flow in the discharge pipe of RCS relief and safety valves) and II.F.2 (instrumentation which provides an unambiguous, easy-to-interpret indication of inadequate core cooling) of NUREG-0737. 9. Review of the inlet design of the containment sump ECCS suction screen is performed under SRP Section 6.2.2. The review is to assure that containment sumps provide a reliable, long-term recirculation cooling capability and that ECCS pump performance will not be adversely affected by post-LOCA conditions impacting the sumps and that the system operation and performance is consistent with the intent of Regulatory Guide 1.82. 10. Review of the adequacy of the containment isolation is performed under SRP Section 6.2.4. This review is, in part, to assure that portions of the ECCS penetrating the containment barrier are designed with acceptable isolation features to maintain containment integrity for all operating conditions, including accidents. 11. Review of the adequacy of the power supply for the ECCS is performed under SRP Sections 8.1, 8.2, 8.3.1, and 8.3.2. In addition, reviews of the plant’s overall capabilities to withstand or cope with, and recover from a Station Blackout (SBO) is performed under SRP Section 8.4. The review should coordinate with the review of the ECCS if the system is required to ensure adequate core cooling as required by 10 CFR 50.63 and the guidance of Regulatory Guide 1.155. 12. Review of the seismic and quality group classifications for the ECCS is performed under SRP Section 3.2.1 and 3.2.2. 13. Review of the criteria used for postulating the effects of pipe breaks both inside and outside containment on ECCS is performed under