ML051050168
| ML051050168 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 06/04/2004 |
| From: | Paul Krohn NRC/RGN-III |
| To: | Chernoff H, Lounder R NRC/RGN-III |
| References | |
| FOIA/PA-2004-0282 | |
| Download: ML051050168 (6) | |
Text
Harold Chernoff - PB CIV Unit 1 MS-228 Body-to-Bonnet Leak
-.-. '-Aei From:
To:
Pwaf A Date:
Subject:
PGK1 @NRC.GOV <pgkl @nrc.gov>
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PLL@NRC.GOV" <pil@nrc.gov>, OHKC@NRC.GOV" <hkc nrc.gov>
I TI Fri. Jun 4, 2004 8:37 AM PB CIV Unit 1 MS-228 Body-to-Bonnet Leak k-- Oz q
MAJN STEAM FC 2016 6'
2010-2013 P-1 STOP VALVE z
z z I TO CONDENSER STEAM I I
GENERATOR PENETRATION -
I It t 4
TO BLOWDOVN TANK 2020 3' TO AUXILIARY m FEEDVATER TURBINE AND RADWASTE STEAM4 CONTAINMENT ISOLATION VALVES 1INSIDE OUTSIDE CLOSED SYS.
MS-227 CLOSED SYS.
MS-2018 TEMP.
LINE HOT>200 S!ZE FLUID COLD<200 CLASS I
BRANCH/SYSTEM
-ATMOSPHERIC STEAM DUMP/MS STEAM 10 TURRINE/MS
- MSIV BYPASS/MS STEAM LINE DRAIN TO BLOWDOWN TANK AND CONDENSER/MS 6'
G 30' G
3' G
2' G
H4T HOT HOT HOT 4
4 CLOSED SYS.
CLOSED SYS.
MS-234 G'i 4
CLOSED SYS.
MS-235
-AUXILIARY FEED PUMP AND RADbASTE.STEAM/MS 3'
G HOT 4
FOR FURTHER -INFORMATION REFER TO FSAR CHAPTER 10 & FIG. 10.2-1 SHT. I NDTEi i) ATMOSPHERIC STEAM DUMP-THIS IS AN OUTGOING LINE CONNECTED TO A CLOSED SYSTEM INSIDE CONTAINMENT.
THE -MANUAL 15OLATION REQUIREMENT 1S MET BY MS-I27.
2)-STEAM TD TURBINE-THIS IS AN OUTGOING LINE CONNECTED TO A CLOSED SYS. INSIiSD CONTAINMENT.
.IT THEREFORE SATISFIES CLASS A PENETRATION CRITERIA BECAUSE REMO-E STOP 'VALVE 14S-2018 PROVIDES A.DEGREE OF ISOLATION WHICH EXCEEDS THAT OF A MANLUAL
.VALVE bSINCE IT CAN -BE REMOTELY. OPERATED.
3)1.MSIV BYPASS-THIS IS AN OUTGOING LINE' CONNECTED TO A CLOSED SYSTEM INSIDE CONTAINMENT.
THE MANUAL ISOLATION REQUIREMENT IS 'SATISFIED BY MS-234.
>4) STEAMLINE DRAIN TO STEAM -GENERATOR BLOWDOWN TANK AND CONDENSER-THIS IS AN OUTGOING LINE CONNECTED.TO A CLOSED SYSTEM INSIDE CONTAINMENT.
-.HE MANUAL ISOLATION RECUIREMENT IS SATISFIED BY MS-228.
- 5) AUXILIARY FEED PUMP AND RADVASTE STEAM SUPPLY-THIS IS AN OUTGOING LINE CONNEOrCED TO A CLOSED SYSTEM INSIDE CONTAINMENT.
THE MANUAL ISOLATION VALVE IS SATISFIED BY 1SS-235.
FIG. 5.2-1 June 1552
3.6 CONTAINMENT SYSTEMS 3.6.3 Containment Isolation Valves LCO 3.6.3 Each containment isolation valve shall be OPERABLE.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTIONS
NOTES--------------------------------------------------
- 1.
Penetration flow path(s) except for the purge supply and exhaust flow paths may be unisolated intermittently under administrative controls.
- 2.
Separate Condition entry is allowed 'for each penetration flow path.
- 3.
Enter applicable Conditions and Required Actions for systems made inoperable by containment isolation valves.
- 4.
Enter applIcable Conditions and Required Actions of'LCO 3.6.1, "Containment,'
when isolation valve leakage results in' exceeding the overall containment leakage rate acceptance criteria.
CONDITION REQUIRED ACTION COMPLETION TIME A.
NOTE -----------
A.1 Isolate the affected 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> Only applicable to penetration flow path by penetration flow paths use of at least one with two containment closed and de-activated isolation valves.
automatic valve, closed manual valve, blind flange, or check valve One or more penetration "With flow through the flow paths with one valve secured.
containment isolation valve inoperable.
AND (continued)
Point Beach 3.6.3-1 Unit 1 - Amendment No. 201 Unit 2 - Amendment No. 206
Containment Isolation Valves 3.6.3 ACTIONS (continued)
CONDITION l
REQUIRED ACTION J
COMPLETIONlIME C
NOTE-----------
Only applicable to penetration flow paths with only one containment isolation valve and a closed system.
One or more penetration flow paths with one containment Isolation valve inoperable.
C.1 Isolate the affected
(
penetration flow path by use of at least one closed and de-activate!
automatic valve, closed manual valve, or blind flange.
72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> AND C.2
NOTES----------
- 1. 'Isolation devices in high radiation areas may be verified by use of administrative means.
- 2. Isolation devices that are locked, sealed, or otherwise secured may be verified by use of administrative means.
Verify the affected penetration flow path is isolated.
Once per 31 days for isolation devices outside containment AND Prior to entering Mode 4 from Mode 5 if not performed within the previous 92 days for isolation devices inside containment I.
A.
(continued)
Point Beach 3.6.3-3 Unit 1 - Amendment No. 201 Unit 2 - Amendment No. 206
ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLE71ON TIME D.
Required Action and D.1 Be in MODE 3.
6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met.
AND D.2 Be in MODE 5.
36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.3.1 Verify each purge supply and exhaust valve Is 31 days closed with the control switch locked, except for one purge valve in a penetration flow path to perform leakage rate corrective maintenance.
S R 3.6.3.2-NE------
NOT --------------------------
Valves and blind flanges In high radiation areas may be verified by use of administrative controls.
Verify each containment isolation manual valve 31 days and blind flange that Is located outside containment and not locked, sealed, or otherwise secured and required to be closed during accident conditions is closed, except for containment isolation valves that are open under administrative controls.
(continued)
Point Beach 3.6.3-4 Unit 1 - Amendment No. 201 Unit 2 - Amendment No. 206
- 3.
Manual and remotely operated isolation valves that are locked closed or otherwise closed and under administrative control during power operation qualify as automatic trip valves.
- 4.
A check valve qualifies as an automatic'trip valve in certain incoming lines.
- 5.
The double disk type of gate valve is used to isolate certain lines.
- 6.
Isolation lines between the containment and the second outside isolation barrier (valve or closed system) are designed to-the same seismic criteria as the containment vessel and are assumed to be an extension of containment.
- 7.
The first outside isolation valve is located as close to the containment as possible unless a more remote location is dictated by equipment isolation requirements.
Class 1 (Outgoing Lines, Reactor Coolant System)
Normally operating outgoing lines connected to the reactor coolant system are provided with two automatic trip valves in series, one located inside containment and one located outside containment.
Class 2 (Outgoing Lines)
Normally operating outgoing lines not connected to the reactor coolant system and not protected from missiles throughout their length are provided with either (1) two automatic trip valves in series or (2) a closed system outside containment and either a remotely operated stop valve or an automatic trip valve in series.
Class 3 (Incoming Lines)
Incoming lines connected to open systems outside containment aremprovided with two automatic trip valves in series, one of which may be located inside containment. Incoming lines connected to closed systems outside containment are provided with one automatic trip valve located inside containment.
Class 4 (Missile Protected)
'Normally operating incoming and outgoing lines which penetrate the containment and are connected to closed systems inside the containment and protected from missiles and the dynamic effects of High Energy Line Breaks (HELB's) throughout their length are provided with at least one manual isolation valve located outside the containnient.