ML20335A100
| ML20335A100 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 11/18/2020 |
| From: | Exelon Generation Co |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML20335A110 | List: |
| References | |
| Download: ML20335A100 (6) | |
Text
CASK HANDLING PIT FUEL POOL 0 0 LOWER CASK LOAD DSC DSC INTO INTO CASK FUEL POOL 1
0 FILL ANNULUS BETWEEN LOAD FUEL DSC AND CASK WITH ASSEMBLIES DEMINERAL IZED INTO DSC WATER 0 11 0 ,
CHECK 8c RECORD INSTALL AND IDENTITY 8c PRESSURIZE LOCATION OF ANNULUS SEAL EACH FUEL ASSY.
IN THE DSC 0 0 FILL DSC CAVITY PLACE TOP WITH SHIELD PLUG BORATED WATER ON DSC 0 1 DECONTAMINATE REMOVE THE OUTER SURFACE CASK/DSC OF CASK FROM FUEL POOL ISFSI LOADING OPERATIONS FLOWCHART USAR Calvert Cliffs Independent Figure 5.1-1 Spent Fuel Storage Page 1 of 3 Installation [See Reference 5.2] Revision 26
CASK DECON AREA AUX.BLDG TRUCK BAY HSM SITE 0 LOWER WATER LEVEL IN DSC WELD PLUGS OVER VENT AND MOVE CASK TO
,_.......,._lll"J SIPHON PORTS TRAILER OR MOVE CASK CAVITY AND SELF-PROPELLED TO HSM ANNULUS AND PERFORM NDE MODULAR TRANSPORTER BGE-A92.O1M SEAL WELD TOP INSTALL DSC SHIELD PLUG TOP COVER TO DSC PLATE LOWER CASK ONTO SUPPORT SKID
@) SEAL WELD PERFORM NDE ON COVER PLATE INSTALL SEAL WELD TO DSC SHELL TRUNNION RESTRAINTS
, DRAIN REMAINING WATER PERFORM NDE REMOVE FROM DSC AND ON SEAL WELD CASK BOTTOM ANNULUS COVER VACUUM INSTALL CASK INSTALL CASK DRY DSC TOP COVER PLATE INNER
- OUTER PLUG ASSEMBLIES BACKFILL DSC CAVITY WITH HELIUM PERFORM HELIUM LEAK TEST ISFSI LOADING OPERATIONS FLOWCHART USAR Calvert Cliffs Independent Figure 5.1-1 Spent Fuel Storage Page 2 of 3 Installation [See Reference 5.2] Revision 26
HSM SHIE
- INSPECT HSM I ALIGNI RAM AND I 1 I
INTERIOR F0R 1
~ PUSH D*SC OE1 BRIS, IN,TQ, HSU RE MOVE OR POSITION RE TRACT RAMI CASK 'WllH AHO PULL CASK HSM OPENING OUT 0r 1 MSM OP£NINC
- I' I*
RE1 M0VE CASK I TOP COVER I' INSTAII..L DSC ALAT1E: 8. SIOD 1 IE ..OOWN
,........, EIRACKI[ 1 IF'AS 11'ENERS 1
1 1
1; SEISM1IC R£S,TRAINT ANO HSM DOOR
'I ALlGN AHO SEC URE HSM OOCt< CASK CLOSED DOOR WI TH HSM QPEN'ING St CURE SK J10 ANC IN5,TALL CASK ...,____.
IRESTRAJNT I SYSTEM ISFSI LOADING OPERATIONS FLOWCHART USAR Calvert Cliffs Independent Figure 5.1-1 Spent Fuel Storage Page 3 of 3 Installation [See Reference 5.2] Revision 26
HSM SITE 0 0 REMOVE OR RETRACT RAU POSIT ION CASI< Nm PULL CASK WITH HSM OUT OF HSM OPENING
© 1 I SECIR: CASK ON REMOVE HSM TRAILER OR DOOR Nm DSC SELF -PROPELLED SEISMIC MOOILM TRMSPORTER Ml>
RESTRAINT INSTALL TOP COVER PLATE 1 r AL ICN Nm DOCK REPLACE CASK WITH DOOR HSM OPENING ON HSM 0
INST ALL CASI< MOVE CASI<
RESTRAINT TO NEXT SYSTEM LOCATION ON SITE 1
ALIGN AND REMOVE CASI<
EXTEND RAU INNER Nm OUTER T_.OUGH CASI< PLUG INTO HSM ASSEMBLIES
© I PULL DSC OUT INSTALL CASI<
Of' HSM INTO BOTTOM CASI< WITH RAM COVER
~ ............. _
ISFSI RETRIEVAL OPERATIONS FLOWCHART USAR Calvert Cliffs Independent Figure 5.1-2 Spent Fuel Storage Page 1 of 3 Installation [See Reference 5.2] Revision 26
CASK llECDtl PII &IK.11.llf:i. TB!&K BAY
@) @
PLACE CASK REMOVE IN OECON - CASK
- TRUNNION PIT RESTRAINTS REMOVE CASK TOP COVER PLATE -
@ t LIFT CASK/DSC F'ROM TRAILER OR SELF'-PROPELLEO MOOULM TRANSPORTER REMOVE DSC BCE*A92.0N TOP COVER PLATE DRILL OUT VENT AND SIPHON PORT PLUGS
©
- FILL DSC WITH BORATED WATER
@) FILL DSC AND CASK ANNULUS WITH WATER REMOVE SEAL WELD FROM DSC TOP COVER PLATE REMOVE DSC TOP COVER PLATE i
@ REMOVE SEAL WELD FROM TOP PLUG ASSEMBLY ISFSI RETRIEVAL OPERATIONS FLOWCHART USAR Calvert Cliffs Independent Figure 5.1-2 Spent Fuel Storage Page 2 of 3 Installation [See Reference 5.2] Revision 26
CASK DEGON PIT FUEL POOL 4 h
@)
MOVE CASK TO SPENT FUEL POOL
... REMOVE WATER FROM DSC CAVITY LOWER CASK INTO POOL
_. MOVE CASK TO CASK DEGON PIT 30 @ ' '
DECONTAMINATE SEAL WELD TOP EXTERIOR
- SHIELD PLUG REMOVE DSC TOP SURFACE AND COVER SHIELD PLUG OF CASK PLATE TO DSC
@) I PROCESSOR REMOVE FUEL STORE DSC AS ASSEMBLIES LOW LEVEL FROM DSC WASTE PLACE TOP SHIELD PLUG _..
ONTO DSC BGE-A92.01M ,,
Figure 5.1-2 ISFSI Retrieval Operations Flowchart Page 3 of 3
[See Reference 5.2]
Rev. 1