ML22298A009
| ML22298A009 | |
| Person / Time | |
|---|---|
| Issue date: | 10/25/2022 |
| From: | Bhagwat Jain NRC/NRR/DORL/LPL4 |
| To: | |
| References | |
| Download: ML22298A009 (1) | |
Text
©2022 Nuclear Energy Institute 15 Gen IV Light Water Reactor Example Note 1: Initiated upon Manual Core Spray actuation Note 2: Initiated upon Manual Core Spray or Manual Containment Isolation Phase A actuation Note 3: Also includes Turbine Trip and Main Feedwater Isolation Note 4: Manual trip required for Steam Generator Tube Rupture. Other scenarios credit DAS automatic signal.
Protection System Function IEEE Reqd Automatic Function IEEE Reqd Manual Function SECY Points 1-3 (D3 Analysis)
Diverse Automatic Function SECY Point 4 Diverse Manual Function SECY Point 4 Manual Action Credited in D3 Analysis?
Reactor Trip RPS 1 switch/train DAS (Note 3) 1 switch Yes (Note 4)
Containment Isolation Phase A ESF 2 switches 1 switch Yes Containment Isolation Phase B ESF Note 1 Containment Purge Isolation ESF Note 2 Containment Spray Actuation ESF 2 switches/train CVCS Isolation ESF 2 switches Emergency Core Cooling System (ECCS)
ESF 1 switch/train DAS 1 switch Emergency Feedwater (EFW) Actuation ESF 1 switch/train DAS 1 switch Emergency Feedwater (EFW) Isolation ESF 2 switches/train 1 switch/SG Yes Main Feedwater Isolation ESF 2 switches Main Steam Line Isolation ESF 2 switches 1 switch/SG Yes MCR Isolation ESF 1 switch/train Main Steam Depressurization Valve 1 switch/SG Yes Safety Depressurization Valve 1 switch Yes