ML20216C140
| ML20216C140 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/02/1997 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML20216C129 | List: |
| References | |
| NUDOCS 9709080231 | |
| Download: ML20216C140 (6) | |
Text
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Docket No. 50-1M B16641 1
l Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications Containment Pressure Marked Up Pages September 1997 9709000231 970902 PDR ADOCK 05000336" P
PDR,.
e, C
- h 23,1977 CONTAINMENTSYSTEME INTERNAL. PRESSURE LIMITING CONDITION FOR OPERATION 3.6.1.4
-12 inches Water Gauge and ee:+ Primary containment internal pressure shall be m
,20 =
APPLICABILITY: MODES 1, 2, 3 and 4.
ACTION:
With the containment internal pressure in excess of or below the limits be in NOT STANDBY within the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />; go to COLD SHU next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
SURVEILLANCE REOUIRENENTS i
4.6.1.4 The primary containment internal pressure shall be detemined to within the limits at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
p -
MILLSTONE - UNIT 2 3/4 6-8
Oct: Mr21,1^^.4, t CONTA1NMDff SYSTEMS BASES 3/4. 6.1. 4 INTERNAL PRESSURE The limitations on containment internal pressure ensure that the contain-ment peak pressure does not exceed the design pressure of 54 psig during MSLB er l LOCA conditions.
The maximum peak pressure is obtained from a MSLB event.
psig for initial positive containment pressure will limit the total pressure toThe limit of 44 l less than the design pressure and is consistent with the accident analyses.
3/4.6.1.5 AIR TE@ERATURE The limitation on containment air temperature ensures that the contain-ment air temperature does not exceed the worst case combined LOCA/MSLB air temperature profile and the liner temperature of 189'F.
The containment air and liner temperature limits are consistent with the accident analyses.
3 /4. 6.1. 6 CONTAINMENT STRUCTURLL INTEGRITY This limitation ensures that the structural integrity of the containment vessel will be maintained comparable to the original design standards for the life of the facility. Structural integrity is required to ensure that the vessel will withstand the design pressure of 54 psig in the event of a LOCA or MSLt.
The measurement of containment tendon 1tft off force, the visual and totallurgical examination of tendons, anchorages and liner and the Type A leakage tests are suffletant to demonstrate this capability.
The surveillance requirements for demonstrating the containment's struc-tural integrity are in compliance with the recommendations of Regulatory Guide 3.35 ' Inservice Surveillance of Ungrouted Tendons in Prestressed Concrete Containment Structures."
MILLSTONE - UNIT 2 8 3/4 6 2 Amendment No. JJ. 71 171 em
Docket No. 50-336 B16641 Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications Containment Pressure Retyped Pages 1
September 1997 1
s e.
CONTAINMENT.5YSTEMS
' INTERNAL PRES $URE LINITING CONDITION FOR OPERATION 3.6.1.4 Primary containment internal pressure shall be maintained between
-12 inches Water Gauge and +1.0 PSIG.
l APPLICABillTY:
MODES 1, 2, 3 and 4.
ACTION:
With the containment internal pressure in excess of or below the limits above, restore the internal pressure to within the limits within I hour or be in HOT STANDBY within the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />; go to COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
l i
SURVEILLANCE REQUIRENENTS 4.6.1.4 The primary containment internal pressure shall be determined to I
within the limits at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
MILLSTONE - UNIT 2 3/4 6-8 Amendment No.
0308
e CONTAINMENT $YSTEMS SASES' 3/4.6.1.4 INTERNAL PRESSURE The limitations on containment internal pressure ensure that the contain-ment peak pressure does not exceed the design pressure of 54 psig during MSLB or LOCA conditions.
The maximum peak pressure is obtained from a MSLB event.
The limit of 1.0 l psig for initial positive containment pressure will limit the total pressure to less than the design pressure and is consistent with the accident analyses.
3/4.6.1.5 AIR TEMPERATURE The limitation on containment air temperature ensures that the contain-ment air temperature does not exceed the worst case combined LOCA/MSLB air temperature profile and the liner temperature of 289'F. The containment air and liner temperature limits are consistent with the accident analyses.
3/4.6.1.6 CONTAINMENT STRUCTURAL INTEGRITY This limitation ensures that the structural integrity of the containment vessel will be maintained comparable to the original design standards for the life of the facility.
Structural integrity is required to ensure that the vessel will withstand the design pressure of 54 psig in the event of a LOCA or MSLB. The measurement of containment tendon lift off force, the visual and metallurgical examination of tendons, anchorages and liner and the Type A leakage tests are sufficient to demonstrate this capability.
The surveillance requirements for demonstrating the containment's struc-tural integrity are in compliance with the recommendations of Regulatory Guide l
1.35 " Inservice-Surveillance of Ungrouted Tendons in Prestressed Concrete Containment Structures."
gLSTONE-UNIT 2 B 3/4 6-2 Amendment No. U, 77, JM, J#,