ML15237A014

Diagrams - August 25, 2015 Meeting

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

This region ~ 46,000 gal/ft 176' 0 3/8" 190' 0" 200' 0" Normal SP Level 232' 6" 240' 6" 267' 11 7/8" 261' 0" 227' 0" 288' 3 1/4" 305' 9" 181' 0" Indicated level range 192' to 217' 1, 650,000 gal 0 (199' 6") TS LL 1, 990,000 gal 2, 440,000 gal 3, 260,000 gal 3, 660,000 gal P

224' 0" 298' 6" (TAF)

Vacuum Breaker (4)

Nine Mile Point Unit 2 Primary Containment

~ 6 downcomer spillover height 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 Top of Wetwell Level Instrument - 782,000 Gallons Loss of Wetwell Vent Function - 1,242,000 Gallons 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.

Nominal Water Volume - 1,104,000 Gallons

SFP Make Up (Monitor Nozzle can be used on this connection)

SFP From Discharge Bay From CWS 2SWP*V900 2SWP-V902 2SWP-TV512 2SWP-V905 2SWP-V904 2SWP-V903 CROSS TIE BELOW LOW LAKE LEVEL TO ENSURE EACH SUCTION POINT REMAINS SUBMERGED 2RHS*MOV40A 2RHS*MOV24A 2RHS*16A 2RHS*39A 2RHS*V304 2RHS*V248 2RHS*V249 TO DIV 2 SFP SPARGER SIZED TO SUPPLY SFP (FLEX/SAWA)

DISTRIBUTION MANIFOLD TO BE OPERATED FROM THE RB TRACK BAY OR HOIST WELL AREA ON ELEVATION 261' New Penetrations through Screenwell Wall below grade (Typ - 2) 3" Hose w/ 2.5" NST (m x f) ends Estimated L = 800 feet By Pump Vendor 3" Hose w/ 2.5" NST(f x m) end Estimated Length = 1,200 feet 2 Inlets:

2.5" NH(m) x 2" NPT adaptor and 2" gate valve 4 Outlets:

1-1/2 NH (female) x 2" NPT adaptor with 2" globe valve to RPV (FLEX) 1-1/2 NH (female) x 1-1/2 NPT adaptor with 1-1/2" globe valve to SFP (FLEX/SAWA) 2-1/2 NH (female) x 3" NPT adaptor with 3" globe valve to RPV (SAWA) 2-1/2 NH(m) x 2" NPT adaptor and 2" gate valve to Recirculation Line 2SWP-V906 (3/4 Drain)

Perforated Pipe (Total of 80 x 1" Holes)

Intake Structure Wall 2-SWP-016-01H-4 (SHUTDOWN TEMPERING) 2-SWP-016-01G-4 2CNS-V621 2-RHS-003-117-2 (A-)

2-CNS-003-080-4 2-RHS-016-005-2 (A-)

NOTE ON FITTINGS:

NH = NHS = Threaded fitting sealed with gasket.

Typical fire hose connection NPT = Threaded fitting where threads do the sealing.

Storz = Latching hose fitting 6" Hose w/ cam and groove fittings Estimated L = 50 feet 6" Male CAM and Groove ADAPTER X FEMALE NPT Screenwell Wall Below Grade Elevation Outside Screenwell Basement PID 011-H PID 004-B PID 031-A 2RHS*MOV24B 2RHS*16B 2RHS*MOV40B 2RHS*39B 2RHS*MOV104 2ICS*V156 2ICS*V157 2-RHS-006-141-2 (B-)

2-RHS-003-120-2 (B-)

2CNS-V622 2-CNS-003-905-4 PID 004-B PID 031-A / 031-B 2-RHS-008-287-2(B-)

2RHS*V309 2-RHS-008-297-2(B-)

TO DIV 1 SFP SPARGER SIZED TO SUPPLY RPV FOR SAWA 3" Check Valve Priming System BDB-P2A (B, C, D, E) 4" Flange x 6" Cam and Groove Adaptor 2" Hose w/ 1.5" NST (m x f) ends Estimated L = 200 feet 3" Hose w/

2.5" NST (m x f) ends Estimated L = 200 feet 1-1/2 NHS (male) / THREADED CAP NORMALLY INSTALLED 2-1/2 NHS (male) /

THREADED CAP NORMALLY INSTALLED PID 038-B PID 038-A MISSILLE BARRIER BDB-P2B (A, C, D, E)

Minimum Flow /

Freeze Protection SAWA PATH TO RPV VIA LOOP A / DIVISION 1 RHS PIPING AND VALVE 2RHS*MOV24A LEGEND - SAWA FLOW PATHS OPERATOR ACTIONS ON PID 004-B 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 MANUALLY OPEN VALVE 2RHS*V70 OPERATOR ACTIONS ON PID 031-A / 031-B SAWA PATH TO RPV Remote Manual - Open 2RHS*MOV24A 2SWP-V1267 2SWP-V1266 LOOP A /

DIVISION 1 2RHS*V70 LOOP B / DIVISION 2 2RHS*V79 Discharge Manifold Inlet = 3" 350# flange, Outlet = 2.5" NST (f)

Note that a pressure gauge can be installed at one of the available outlets to monitor pump discharge pressure.

2SWP-V1269 2SWP-V1268 OPERATOR ACTIONS ON PID 011-H OPEN BARRIER DOOR OPEN VACUUM BREAKER VALVES 2SWP-V1268 AND 2SWP-V1269 REMOVE CAPS AND ATTACH SUCTION HOSE CLOSE VACUUM BREAKER VALVES 2SWP-V1268 AND 2SWP-V1269 SIZED TO SUPPLY RPV FOR FLEX 6" PIPE FLOW METER Valved Splitter 2.5" NST(f) inlet, 2 x 2.5" NST(m) outlets 3" Hose w/ 2.5" NST(f x m) end Estimated Length = 200 feet each Single Pump 300 GPM Capacity Two Pump 500 GPM Capacity

1. SAWA in-line flow meter

2. 200' of 3" hose

3. Local manual valve - Open 4 Power operated remote manual valve - Open

5. SAWA backflow prevention check valve - PCIV 1

2 3

4 5

TWO PUMP SAWA CONFIGURATION (OPTIONAL)

SARGENT & LUNDY LLC MASTER DIAGRAM 450kW/562.5kVA Portable DG South Corridor of the Control Building Control Building, Elevation 261' Portable DG to be located in the courtyard (El. 261' Southeast of Standby SWGR Rooms) 600VAC 2EJS*US1 BCD (Note 1) 600A*

600A Portable Cable consist of three parallel sets of 2 - 1/C #4/0 AWG and 1/C 500 MCM TPC cables 2LAC*PNL100A 2EJS*PNL100A 2EHS*MCC103 Option 1 (Primary)

Option 2 (Alternate)

LEGEND:

Note:

1.) Existing future space, cubicle 5C will be used for connection via a Bus Connection Device (BCD).

The BCD is non-safety related (NSR) and will be equipped with (1) TPC male locking receptacle, Model

1. PA22MR, per phase.

2.) Portable DG neutral to be grounded at the Switchgear neutral/ground bus.

Female Locking Connector (Typ. For Portable Cables Connecting End at BCDs)

Female Locking Connectors Male Locking Connectors Portable Cable Lengths:

Option 1: Total estimated length of 250' Option 2: Total estimated length of 200' 2EHS*MCC102 2EHS*MCC101 600A 600A*

600A*

600VAC 2EJS*US3 BCD (Note 1) 600A**

600A 2LAC*PNL300B 2EJS*PNL300B 2EHS*MCC303 2EHS*MCC302 2EHS*MCC301 600A 600A**

600A**

Female Locking Connector (Typ. For Portable Cables Connecting End at BCDs)

Standby SWGR Room Div. I Standby SWGR Room Div. II Cable Splitter Cable Splitter 2-1/C #4/0 TPC cables (190') per phase 2-1/C #4/0 TPC cables (240') per phase 1/C 500MCM TPC cable per phase (10')

1/C 500MCM TPC cable per phase (10')

1/C #4/0 neutral/ground (250')

1/C #4/0 neutral/ground (250')

Note 2 Note 2 1/C #4/0 AWG TPC Cables for portable DG system grounding

• 2EHS*MCC101, 2EHS*MCC102 and 2EHS*MCC103 are each fed by two (2) separate 600A breakers (one normally open and one normally closed)

• • 2EHS*MCC301, 2EHS*MCC302 and 2EHS*MCC303 are each fed by two (2) separate 600A breakers (one normally open and one normally closed)

NMP Unit 2 FLEX DG Connection