ML070470287
| ML070470287 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 02/22/2007 |
| From: | Fields M NRC/NRR/ADRO/DORL/LPLIV |
| To: | Edington R Arizona Public Service Co |
| Markley, M T, NRR/DORL/LP4, 301-415-5723 | |
| Shared Package | |
| ML070470197 | List: |
| References | |
| TAC MD0044, TAC MD0045, TAC MD0046 | |
| Download: ML070470287 (5) | |
Text
Containment Isolation Valves 3.6.3 3.6 CONTAINMENT SYSTEMS 3.6.3 Containment Isolation Valves LCO 3.6.3 APPLICABILITY:
Each required containment isolation valve shall be OPERABLE.
MODES 1, 2, 3, and 4.
I ACTIONS NOTES -----------------------------------
- 1. Penetration flow paths except for 42 inch purge valve penetration 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 system(s) made inoperable by containment isolation valves.
- 4.
Enter applicable Conditions and Required Actions of LCO 3.6.1, "Containment," when leakage results in exceeding the overall containment leakage rate acceptance criteria.
- 5. A 42 inch refueling purge valve is not a required containment isolation valve when its flow path is isolated with a blind flange tested in accordance with SR 3.6.1.1.
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 penetration flow paths by use of at least with two required one closed and containment isolation de-activated valves.
automatic valve, closed manual valve, blind flange, or One or more check:valve with flow penetration flow paths through the valve with one required secured.
containment isolation valve inoperable AND except for purge valve leakage not within limit.
.(continued)
I PALO VERDE UNITS 1,2,3 3.6.3-1 AMENDMENT NO. 444. 166
Containment Isolation Valves 3.6.3 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
(continued)
A.2
NOTE------
Isolation devices in high radiation areas may be verified by use of administrative means.
Verify the affected Once per 31 days penetration flow path for isolation is isolated, 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 B.
NOTE --------- B.1 Isolate the affected 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Only applicable to penetration flow path penetration flow paths by use of at least with two required one closed and containmentisolation de-activated valves.
automatic valve, closed manual valve, or blind flange.
One or more penetration flow paths with two required containment isolation valves inoperable except for purge valve leakage not within limit.
(continued)
PALO VERDE UNITS 1,2.3 3.6.3-2 AMENDMENT NO.
14-ý, 166
Containment Isolation Valves 3.6.3 ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLETION TIME C. --------- NOTE --------- C.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 penetration flow paths by use of at least with only one required one closed and containment isolation de-activated valve and a closed automatic valve, system.
closed manual valve, or blind flange.
One or more AND penetration flow paths with one required C.2
NOTE------
containment isolation Isolation devices in valve inoperable, high radiation areas may be verified by use of administrative means.
Verify the affected Once per 31 days penetration flow path is isolated.
D.
One or more D.1 Isolate the affected 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> penetration flow paths penetration flow path with one or more by use of at least, required containment one closed and purge valves not de-activated within purge valve automatic valve with leakage limits, resilient seals, or blind flange.
AND (continued)
I PALO VERDE UNITS 1,2,3 3.6.3-3 AMENDMENT NO. 4-1;, 166
Containment Isolation Valves 3.6.3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.3.1 Verify each required 42 inch purge valve is 31 days sealed closed except for one purgevalve in a penetration flow path while in Condition D of this LCO.
SR 3.6.3..2 Verify each 8 inch purge valve is closed 31 days except when the 8 inch purge valves are open for pressure control, ALARA or air quality considerations for personnel entry, or for Surveillances that require the valves to be open.
NOTE----------------
Valves and blind flanges in high radiation areas may be verified by use of administrative means.
Verify each containment isolation manual 31 days valve and blind flange that is located outside containment and not locked, sealed or otherwise secured and is required to be closed during accident conditions is closed, except for containment isolation
.valves that are open under administrative controls.
(continued)
PALO VERDE UNITS 1.2.3 3.6.3-5 AMENDMENT NO.
166
Containment Isolation Valves 3.6.3 SURVEILLANCE REQUIREMENTS (continued)
SURVEILLANCE FREQUENCY
+
SR 3.6.3.4 NOTE---------------
Valves and blind flanges in high radiation areas may be verified by use of administrative means.
Verify each containment isolation manual valve and blind flange that is located inside 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.
Prior to entering MODE 4 from MODE 5 if not performed within the previous 92 days SR 3.6.3.5 Verify the isolation time of each required In automatic power operated containment accordance isolation valve is within limits.
with the Inservice Testing Program SR 3.6.3.6 Perform leakage rate testing for required 184 days containment purge valves with resilient seals.
AND Within 92 days after opening the valve SR 3.6.3.7 Verify each required automatic containment 18 months isolation valve that is not locked, sealed, or otherwise secured in position, actuates to the isolation position on an actual or simulated actuation signal.
PALO VERDE UNITS 1,2,3 3.6.3-6 AMENDMENT NO. 4-1-ý. 166