ML20081K396
| ML20081K396 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 06/21/1991 |
| From: | WOLF CREEK NUCLEAR OPERATING CORP. |
| To: | |
| Shared Package | |
| ML20081K394 | List: |
| References | |
| NUDOCS 9106270138 | |
| Download: ML20081K396 (3) | |
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- Attachment IV to ET 91 0109 Page 1 of 3 ATTACllMENT IV PROPOSED TECIINICAL SPECIFICATION CHANGE f
910627t,138 910621 FDR ADOCI: 05000482 P
Attachment IV to E1 91-0109 Page 2 of 3 g
C0!4T AliqN T_ SY S T f fi5 CONTAINMENT COOLING SYSTEM LIMITING CONDITION FOR OPERATION 3
3.6.2.3 Two independent groups of containment cooling fens shall be OPERABLE with two fan systems to each group.
APPLICABILITY:
MODES 1, 2, 3, and 4.
D ACTION:
With one group of the above required containment cooling fans inoperable and both Containment Spray Systems OPERABLE, restore the inoperable group of cooling fans to OPERABLE status within 7 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUT 00WN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
U, b.
With tvs groups of the above required containment cooling fans e
inoptrable and both Containment Spray Systems OPERABLE, restore at least one group of cooling fans to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> a
or be in at least 110T STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD gt SHU100WN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Restore both above required es groups of cooling fans to OPERABLE status within 7 days of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in
(
COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
,d With one group of the above required containment cooling fans c.
e inoperable and one Containment Spray System inoperable, restore the inoperable Containment Spray System to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Restore the inoperable group tainment cooling fans to OPERABLE status within 7 days of ini-of cop'oss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in tial l COLD SHUT 00WN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
a 7
SURVEILLANCE REQUIREMENTS 3
4.6.2.3 Each group of containment cooling fans shall be demonstrated OPERABLE:
a.
At least once per 31 days by )-
tarting each non-operating fan group from the control room, and verifying that each fan group operates for at least 15 minute twf-2)
VerMying a coomg-water-f4ow rate of gr+ater thar eMVtual--40--
--1MG-9p~' * ^ c ac h cooler-.gr4ufw b.
At least once per 18 months by verifying that on a Safety injection test signal, the fans start in slow speed or, if operating, shift i
to slow speed and the cooling water flow rate increases to at least N000= gpm to each cooler group.
l WOLF CREEK - UNIT 1 3/4 6-15 Amendment No. 38
Attachment IV to ET 91-0109 Page 2 of 3 CONTAltNENT SYSlfMS CONT AINMEf1T_ COOLING SYSILM LIMITING COND1110N FOR OPERATION 3.6.2.3 lwo independent groups of containment cooling fans shall be OPERABLE with two fin systems to each group.
APPLILABILITY.
MODES 1, 2, 3, and 4.
ACTION:
a.
With one group of the above required containment cooling fans inoperable and both Containment Spray Systems OPERABLE, restore the inoperable group of cooling fans to OPERABLE status within 7 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUT 00WN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, b.
With two groups of the above required containment cooling fans inoperable and both Containment Spray Systems OPERABLE, restore at least one group of cooling fans to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Restore both above required groups of cooling fans to OPERABLE status within 7 days of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUIDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
c.
With one group of the above required containment cooling fans inoperable and one Containment Spray System inoperable, restore the inoperable Containment Spray System to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Restore the inoperable group of cop,tainment cooling f ans to OPERABLE status within 7 days of ini-tial loss or be in at least HOT SIANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SURVEILLANCE REQUIREMENTS 4.6.2.3 Each group of containment cooling fans shall be demonstrated OPERABLE:
At least once per 31 days b [ g a.
4) tarting each non operating fan group from the control room, and verifying that each fan group operates for at least 15 minute
-+mi--
-2)
Ver4fying-a-cooMm}-water-f l ow-rat (Wreater-tiewmMual--to--
-4%0--gf+m-4e-eaeh-soolwywyw b.
At least once per 18 months by verifying that on a Safety Injection test signal, the fans start in slow speed or, if operating, shift 2000 to slow speed and the cooling water flow rate increases to at least M pm to each cooler group.
l O
WOLF CREEK - UNil 1 3/4 6-15 Amendment No. 3B
Attachmcut IV to ET 91-0109 Page 3 of 3 CON 1AINMENI SYS11t6 cAsrs 3/4.6.1.4 INIERNAL PRESSURE The limitations on containment internal pressure ensure that: (1) the containment structure is prevented from exceeding its design negative pressure differential with respect to the outside atmosphere of 3.0 psig, and (2) the containment peak pressure does not exceed the design pressure of 60 psig during steam ireak conditions.
The max mum peak pressure expected to be obtained f rom a steam line' break event is
- psig.
The limit of 1.5 psig for initial positive containment pressure will limit the total pressure to psig, which is less than design pressure and is consistent with the s analyses.
3/4.6.1.5 AIR TEMPERATURE The limitations on containment average air temperature ensure that the 00erall containment average air temperature does not exceed the initial temperature condition assumed in the safety analysis for a steam line break accident.
Measurements shall be made at all listed locations, whether by fixed or portable instrunents, prior to determining the average air temperature.
3/4.6.1.6 CONTAINMENT VESSEL STRUCTURAL INTEGRIlY This limitation ensures that the structural inte ity he containment will be maintained in accordance with safety analyF s requirements for the life of the facility:. Structural integrity is requir' to ensure that the contain-ment will withstand the maximum pressure of-5&ffsig in the event of a steam line break accident.
The measurement of containment tendon lift-off force, the tensile tests of the tendon wires or strands, the visual examination of tendons, anchorages and exposed interior and exterior surfaces of the contain-ment, and the Type A leakage test are sufficient to demonstrate this capability.
l The Surveillance Requirements for demonstrating the containment's l
structural integrity are in compliance with the recommendations of proposed Regulatory Guide 1.35, " Inservice Surveillance of Ungrouted Tendons in Pre-i stressed Concrete Containment Structures," April 1979, and proposed Regulatory Guide 1.35.1, " Determining Prestressing Forces for Inspection of Prestressed Concrete Containments," April 1979.
The required Special Reports from any engineering evaluation of containment abnormalities shall include a description of the tendon condition, the condition of the conc e 3 (especially at tendon anchorages), the inspection procedure, the tolerance on cracking, the results of the engineering evaluation and the corrective actions taken.
WOLF CREEK - UNil 1 B 3/4 6-2
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