ML15237A014
| ML15237A014 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 08/25/2015 |
| From: | Niagara Mohawk Power Corp |
| To: | Office of Nuclear Reactor Regulation |
| Auluck R, NRR/JLD, 415-1025 | |
| References | |
| Download: ML15237A014 (3) | |
Text
Nine Mile Point Unit 2 Primary Containment 305' 9" 3, 660,000 gal 298' 6" (TAF) 288' 3 1/4" 3, 260,000 gal 267' 11 7/8" 261' 0" 2, 440,000 gal 1, 990,000 gal
~ 6 downcomer 240' 6" 1, 650,000 gal spillover height Vacuum Breaker (4) 232' 6" Loss of Wetwell Vent Function - 1,242,000 Gallons 227' 0" 224' 0" P Top of Wetwell Level Instrument - 782,000 Gallons This region ~ 46,000 gal/ft Estimated Maximum SAWM Level at 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br /> - 276,000 Gallons Indicated level range 192' to 217' 200' 0" 0 (199' 6") TS LL Normal SP Level Rate of rise with SAWA flow at 300 gpm is 0.39 feet per hour*
Rate of rise with SAWA flow at 100 gpm is 0.13 feet per hour*
- Does not consider mass loss rate of steam leaving containment through wetwell vent path.
190' 0" Nominal Water Volume - 1,104,000 Gallons 181' 0" 176' 0 3/8"
DISTRIBUTION MANIFOLD TO BE OPERATED FROM THE RB TRACK BAY OR HOIST WELL AREA ON ELEVATION 261' 2 Inlets:
2.5" NH(m) x 2" NPT adaptor and 2" gate valve Discharge Manifold Inlet = 3" 350# flange, Outlet = 2.5" NST (f) 4 Outlets:
1-1/2 NH (female) x 2" NPT adaptor with 2" globe valve to RPV (FLEX)
Note that a pressure 1-1/2 NH (female) x 1-1/2 NPT adaptor with 1-1/2" globe valve to SFP (FLEX/SAWA) gauge can be installed 2-1/2 NH (female) x 3" NPT adaptor with 3" globe valve to RPV (SAWA)
By Pump at one of the available 2-1/2 NH(m) x 2" NPT adaptor and 2" gate valve to Recirculation Line Screenwell Wall Below 4" Flange x 6" Cam Vendor outlets to monitor PID 004-B Grade Elevation and Groove Adaptor pump discharge pressure.
3" Check 1-1/2 NHS (male) / THREADED CAP Valve NORMALLY INSTALLED MISSILLE BARRIER Priming System SIZED TO 2" Hose w/ 1.5" NST LOOP B / DIVISION 2 2-RHS-003-120-2 (B-)
New Penetrations through Screenwell Wall 2SWP-V1268 2RHS*V79 SUPPLY SFP (m x f) ends below grade (Typ - 2)
(FLEX/SAWA) Estimated L = 200 feet PID 004-B BDB-P2A (B, C, D, E) 3" Hose w/ 2.5" NST 2-CNS-003-905-4 Single Pump 300 GPM Capacity (m x f) ends Estimated L = 800 feet SIZED TO SUPPLY RPV 2CNS-V622 FOR FLEX 2-1/2 NHS (male) /
6" Male CAM 3" Hose w/ PID 031-A PID 031-A / 031-B 2.5" NST THREADED CAP and Groove NORMALLY INSTALLED 2ICS*V157 2ICS*V156 ADAPTER X (m x f) ends FEMALE NPT Estimated 2RHS*MOV104 6" Hose w/ cam L = 200 feet 2-RHS-006-141-2 (B-)
and groove fittings Estimated SIZED TO L = 50 feet SUPPLY RPV 2-RHS-016-005-2 (A-)
FOR SAWA Minimum Flow / 2-RHS-003-117-2 (A-)
Freeze 2RHS*MOV24A 2RHS*16A 2RHS*16B Protection FLOW METER LOOP A /
6" PIPE DIVISION 1 2RHS*MOV24B 2SWP-V1269 1 2 3 2RHS*V70 4 2RHS*MOV40A 5
2RHS*39A 2RHS*39B 2RHS*MOV40B 2-CNS-003-080-4 2CNS-V621 BDB-P2B (A, C, D, E) 2RHS*V304 CROSS TIE BELOW LOW LAKE LEVEL TO ENSURE EACH SUCTION POINT 2RHS*V249 REMAINS SUBMERGED 3" Hose w/ 2.5" NST(f x m) end Outside Screenwell Estimated Length = 1,200 feet 2-RHS-008-297-2(B-)
Basement Two Pump 500 GPM Capacity 2-RHS-008-287-2(B-)
2RHS*V309 2RHS*V248 3" Hose w/ 2.5" NST(f x m) end Estimated Length = 200 feet each 2SWP-V1267 From CWS SFP Make Up (Monitor Nozzle can be used on this connection) 2SWP-V902 2SWP-V1266 2-SWP-016-01G-4 2SWP-V905 Intake Structure Wall OPERATOR ACTIONS ON PID 011-H 2SWP*V900 SFP OPEN BARRIER DOOR From Discharge OPEN VACUUM BREAKER VALVES 2SWP-V1268 AND 2SWP-V1269 Bay REMOVE CAPS AND ATTACH SUCTION HOSE Valved Splitter 2SWP-V903 CLOSE VACUUM BREAKER VALVES 2SWP-V1268 AND 2SWP-V1269 2.5" NST(f) inlet, 2-SWP-016-01H-4 2 x 2.5" NST(m) TO DIV 1 SFP SPARGER TO DIV 2 SFP SPARGER Perforated Pipe outlets (SHUTDOWN TEMPERING) 2SWP-V904 (Total of 80 x 1" Holes) OPERATOR ACTIONS ON PID 004-B 2SWP-V906 PID 038-A PID 038-B (3/4 Drain) 2SWP-TV512 SAWA PATH TO RPV VIA LOOP A / DIV 1 RHS PIPING MANUALLY REMOVE THREADED CAP AND INSTALL HOSE FITTING(S)
MANUALLY CLOSE VALVE 2CNS-V621 LEGEND - SAWA FLOW PATHS MANUALLY OPEN VALVE 2RHS*V70 PID 011-H SAWA PATH TO RPV VIA LOOP A / DIVISION 1 RHS OPERATOR ACTIONS ON PID 031-A / 031-B
- 1. SAWA in-line flow meter SAWA PATH TO RPV PIPING AND VALVE 2RHS*MOV24A Remote Manual - Open 2RHS*MOV24A
- 2. 200' of 3" hose TWO PUMP SAWA CONFIGURATION (OPTIONAL)
- 3. Local manual valve - Open 4 Power operated remote manual valve - Open NOTE ON FITTINGS:
NH = NHS = Threaded fitting sealed with gasket.
- 5. SAWA backflow prevention check valve - PCIV Typical fire hose connection NPT = Threaded fitting where threads do the sealing.
Storz = Latching hose fitting
NMP Unit 2 FLEX DG Connection Control Building, Elevation 261' 600VAC 2EJS*US1 BCD 600A 600A 600A* 600A* 600A*
(Note 1)
South Corridor of the Control Building Note 2 Female Locking Connector Portable DG to be located in the (Typ. For Portable Cables courtyard (El. 261' Southeast of Connecting End at BCDs) 2-1/C #4/0 TPC cables Standby SWGR Rooms) (240') per phase Male Locking 2EHS*MCC102 2EHS*MCC101 2LAC*PNL100A Connectors 2EJS*PNL100A 2EHS*MCC103 Option 1 450kW/562.5kVA (Primary)
Portable DG Cable Splitter 1/C 500MCM TPC cable per phase (10')
Female Locking Connectors
- 2EHS*MCC101, 2EHS*MCC102 Option 2 and 2EHS*MCC103 are each fed by (Alternate) Standby SWGR Room Div. I 1/C #4/0 neutral/ground two (2) separate 600A breakers (one MASTER DIAGRAM (250') normally open and one normally closed)
Portable Cable Lengths: Standby SWGR Room Div. II ** 2EHS*MCC301, 2EHS*MCC302 and 2EHS*MCC303 are each fed by Option 1: Total estimated length of 250' two (2) separate 600A breakers (one 600VAC 2EJS*US3 normally open and one normally Option 2: Total estimated length of 200' closed)
BCD 600A 600A 600A** 600A** 600A**
2-1/C #4/0 TPC cables (Note 1)
(190') per phase Note 2 Female Locking Connector (Typ. For Portable Cables Connecting End at BCDs) 2EHS*MCC302 2EHS*MCC301 2LAC*PNL300B 2EJS*PNL300B 2EHS*MCC303 1/C 500MCM TPC cable Cable Splitter per phase (10')
SARGENT & LUNDY LLC 1/C #4/0 neutral/ground (250')
LEGEND:
Note:
1.) Existing future space , cubicle 5C will be used for connection via a Bus Connection Device (BCD).
Portable Cable consist of three parallel sets of 2 - 1/C #4/0 AWG and The BCD is non-safety related (NSR) and will be equipped with (1) TPC male locking receptacle, Model 1/C 500 MCM TPC cables # PA22MR, per phase.
2.) Portable DG neutral to be grounded at the Switchgear neutral/ground bus.
1/C #4/0 AWG TPC Cables for portable DG system grounding
.