ML20105D107
| ML20105D107 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 09/10/1992 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20105D104 | List: |
| References | |
| NPF-62-A-064 NUDOCS 9209240353 | |
| Download: ML20105D107 (3) | |
Text
e JNSTRUMENTATIOy 3/4.3.4 REClRCULATION PUMP TRif ACTUATION INSTRUMENTATION 1
ATWS RECIRCULATION PUMP TRIP SYSTEM INSTRUMENTATION 11MITING CONDlTION FOR OPERATION 3.3.4.1 The anticipated transient without scram recirculation pump trip (ATWS-RPT) system instrumentation channels shown in Table 3.3.4.1-1 shall-be OPERABLE with their trip setpoints set consistent with the values shown in the Trip Setpoint column of Table 3.3.4.1-2.
APPLICABILITY:
OPERA 110NAL CONDITION 1.
ACTION:
a.
With an ATWS-RPT system instrumentation channel trip setpoint less conservative than the value shown in the Allowable Value column of Table 3.3.4.1-2, declare the channel inoperable until the r.hannel is restored to OPERABLE status with the channel trip setpoint adjusted consistent with the Trip Setpoint value, b.
With the number of OPERABLE channels less than required by the Minimum OPERABLE Channels per Trip System requirement for one trip system, place the inoperable channel (s) in the tripped condition 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 STARlVP within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
c, With the number of OPERABLE channels one less than required by the Minimum OPERABLE Channels per Trip System requirement for both trip systems, place at least one inoperable channel in the tripped condition within one hour, and place the second inoperable channel in the tripped condition within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. Otherwise, be in at least STARTUP within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, d.
With both trip systems otherwise inoperable, restore at least one trip system to OPERABLE status within one hour or be in at least STARTUP within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
SURVElllANCE RE0VIREMENTS 4.3.4.1.1 Each ATWS-RPT system instrumentation channel shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL FUNCTIONAL TEST and CHANNEL CAllBRATION operations at the frequencies shown in Table 4.3.4.1-1.
4.3.4.1.2 LOGIC SYSTEM FUNCTIONAL TESTS and simulated automatic operation of all channels shall be performed at least once per 18 months.
CLINTON - UNIT 1 3/4 3-48 Amendment No. 64 9209240353 920910 DR ADOCK 0500 1
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TABLE 3.3.4.1-1 b
ATWS RECIRCULATION PUMP TRIP SYSTEM INSTRUMEf1TATION o
2 c
HitilMUM OPERABLE CHA!iNELS 4*'
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TRIP FUNCTION PER TRIP SYSTEM 1.
2 Low Low,-Level 2 2.
Reactor Vessel Pressure - High 2
(a) One trip system may be placed in an inoperable status for up to 2 how s' for required surveillance provided the redundant trip system is OPERABLE.
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Mr. Frank A. Spangenberg Clinton Power Station i
Illinois Power Company Unit No. I i
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Mr. J. S. Perry Illinois Department Vice President of Nuclear Safety Clinton Power Statit
.0ffice of Nuclear Facility Safety Post Office Box 678 1035 Outer Park Drive Clinton, Illinois 61727 Springfield, Illinois 62704 Mr. J. A. Miller Mr. Donald Schopfer Manager Nuclear Station Project Manager Engineering Department Sargent & Lundy Engineers Clinton Power Station 55 East Monroe Street Post Office Box 678 Chicago. Illinois 60603 Clinton, Illinois 61727 Sheldon Zabel, Esquire Schiff, Hardin & Waite 7200 Sears Tower 233 Wacker Drive Chicago, Illinois 60606 Resident Inspector U.S. Nuclear Regulatory Commission RR#3, Box 229 A Clinton, Illinois 61727 Ms. K. K. Berry Licensing Services Manager General Electric Company 175 Curtner Avenue, M/C 382 San Jose, California 95125
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Regional Administrator, Region 111 799 Roosevelt Road, Building 4 Glen Ellyn, Illinois 60137 Chairman of DaWitt County c/o County Clerk's.0ffice DeWitt County Courthouse Clinton, Illinois 61727 Mr. Robert Neumann Office of Public Counsel State of Illinois Center 100 W. Randolph, Suite 11-300 Chicago, Illinois 60601 1
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