ML20006E178
| ML20006E178 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 02/12/1990 |
| From: | Adensam E Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20006E179 | List: |
| References | |
| NUDOCS 9002220235 | |
| Download: ML20006E178 (6) | |
Text
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SOUTH CAROLINA ELECTRIC & GAS COMPANY SOUTH CAROLINA PUBLIC SERVICE AUTHORITY DOCKET NO. 50-395 VIRGIL C. SUMMER NUCLEAR STATION, UNIT NO.1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 84 License No. NPF-12 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by South Carolina Electric & Gas Company (the licensecs).. dated July 21, 1989, as supplemented Septent>er 21, 1989 and December 11 1989, complies with the standards and requirements of the ktomic Energy Act of 1954, as amended (the Act), and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Comission; C.
There is reasonable assurance (1) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be cunducted in compliance with the Comission's regulations; D.
The issuance of this amendment will not be inimical to the common.
defense and security or to the health and safety of the public; and E.
The issuance of this amendnent is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirerents have been satisfied.
2.
Accordingly, the license is amenced by changes to the Technical Specifications, as indicated in the attachment to this license amendment; and paragraph 2.C.(2) of Facility Operating License L
No. NPF-12 is hereby amended to read as follows:
9002220235 900212 DR ADOCK 0500 5-
2 (2)- Technical Specifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised through Anenchent No. 84
, and the Environmental Protection Plan contained in Appendix B, are hereby incorporated in the license.
South Carolina Electric & G6s Company shall operate the facility in accordance with the Technical Specifications and the Environnental Protection Plan.
3.
This anendment is effective as of its date of issuance, and shall be implemented within 30 days of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION E.G Tourigny/for Elinor G. Adensam, Director Project Directorate 11-1 Division of Reactor Projects I/II
Attachment:
Changes to the Technical Specifications Date of Issuance: February 12, 1990 i
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ATTACHMENT TO LICENSE AMENDMENT NO. 84 i
TO FACILITY OPERATING LICENSE NO. NPF-12 1
DOCKET NO. 50-395 i
Replace the following pages of the Appendix "A" Technical Specifications with j
the enclosed pages.
The revised pages are identified by amendr,ent number and contain vertical lines indicating the areas of change, j
Renove Pages Insert Pages 3/48-1 3/4 8-1 3/4 8-8 3/48-8 B 3/4 8-1 8 3/4 8-1 99 I
+
F i
i 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES i
OPERATING p
LIMITING CONDITION FOR OPERATION l
- 3. 8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:
a.
Two physically independent circuits between the offsite transmission network and the onsite Class IE distribution system, and b.
Two separate and independent Emergency Diesel Generators (EDG), each with:
1.
A separate day fuel tank containing a minimum volume of 300 gallons of fuel, 2.
A separate fuel storage system containing a minimum volume of 47,100 gallons of fuel, and l
3.
A separate fuel transfer pump.
APPLICABILITY:
MODES 1, 2, 3 and 4.
ACTION:
With one offsite circuit of 3.8.1.1.a inoperable:
a.
1.
Demonstrate the OPERABILITY of the remaining offsite A.C.
sources by performing Surveillance Requirement 4.8.1.1.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter, and 2.
If either EDG has not been successfully tested within the past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, demonstrate its OPERABILITY by performing Surveillance Requirement 4.8.1.1.2.a.3 separately for each such EDG within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> unless the diesel is already operating, and 3.
Restore the offsite circuit 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 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 one EDG of 3.8.1.1.b inoperable:
1.
Demonstrate the OPERABILITY of the A.C. offsite sources by performing Surveillance Requirement 4.8.1.1.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter, and 2.
If the EDG became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining EDG by performing Surveillance Requirements 4.8.1.1.2.a.3 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> *, and
- This test is required to be completed regardless of when the inoperable EDG is restored to OPERABILITY.
SUMMER - UNIT 1 3/4 8-1 AMEN 0 MENT NO. //, 84
ELECTRICAL POWER SYSTEMS
+.,
A.C. SOURCES SHUTDOWN LIMITING CONDITION FOR OPERATION
- 3. 8.1. 2 As a minimum, the following A.C. electrical power sourcei shall be OPERABLE:
a.
One circuit between the offsite transmission network and the onsite Class 1E distribution system, and b.
One diesel generator
- with:
1.
A day fuel tank containing a minimum volume of 300 gallons of
- fuel, 2.
A fuel storage system containing a minimum volume of 33,200 l
gallons of fuel, and 3.
A fuel transfer pump.
APPLICABILITY:
MODES 5 and 6.
ACTION:
With less than the above minimum required A.C. electrical power sources OPERABLE, immediately suspend all operations involving CORE ALTERATIONS positive reactivity
. changes, movement of irradiated fuel, or crane operation with loads over the fuel storage pool.
In addition, when in MODE 5 with the Reactor Coolant loops not filled, or in MODE 6 with the water level less than 23 feet above the reactor vessel flange, immediately initiate corrective action to restore the required sources to OPERABLE status as soon as possible.
SURVEILLANCE REQUIREMENTS
- 4. 8.1. 2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the Surveillance Requirements of 4.8.1.1.1, 4.8.1.1.2 (with the exception of 4.8.1.1.2.a.4) and 4.8.1.1.3.
1
- ESF load sequencer may be deenergized in Modes 5 and 6 provided that the loss of voltage and degraded voltage relays are disabled.
l SUMMER - UNIT 1 3/4 8-8 AMENDMENT NO. //, 84
i 3
3/4.8 ELECTRICAL POWER SYSTEMS l
BASES 3/4.8.1, 3/4.8.2 AND 3/4.8.3 A.C. SOURCES, D.C. SOURCES AND ONSITE POWER l
DISTRIBUTION SYSTEMS i
The OPERABILITY of the A.C. and D.C power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety related equipment required for 1) the safe shutdown of the facility and 2) the mitigation and control of accident condi-tions within the facility.
The minimum specified independent and redundant A.C. and D.C. power sources and distribution systems satisfy the requirements of General Design Criterion 17 of Appendix "A" to 10 CFR 50.
The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation.
The OPERABILITY of the power sources are consistent with the initial condition assumptions of the safety analyses and are based upon maintaining at least one redundant set of onsite A.C. and D.C.
power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C. source.
The A.C. and D.C. source allowable out-of-service times are based on Regulatory Guide 1.93, " Availability of Electrical Power Sources," December 1974.
When one diesel generator is inoperable, there is an additional ACTION requirement to verify that all required systems, subsystems, trains, components and devices, that depend on the remaining OPERABLE diesel generator as a source of emergency power, are also OPERABLE, and that the steam-driven auxiliary feedwater pump is OPERABLE.
This require-mont is intended to provide assurance that a loss of offsite power event will not result _in a complete loss of safety function of critical systems during the period one of the diesel generators is inoperable.
The term verify as used in this context means to administrative 1y check by examining logs or other information to determine if certain components are out-of-service for maintenance or other reasons.
It does not mean to perform the surveillance requirements needed to demonstrate the OPERABILITY of the component.
The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that
- 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the unit status.
The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are in accordance with the recommendations of Regulatory Guides 1.9, " Selection of Diesel Generator Set Capacity for Standby Power Supplies," March 10, 1971, 1.108, " Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1, August 1977, and 1.137, " Fuel-011 Systems for Standby Diesel Generators,"
Revision 1, October 1979, as modified by the NRC's review and approval of South Carolina Electric & Gas Company's June 10, 1985 and December 6, 1985 amendment requests.
The fuel storage system minimum volume of fuel to demonstrate operability of the diesel generators was based on fuel consumption detemined from time dependent loads following a design basis accident and a loss of off-site power as listed in FSAR Table 8.3-3 for seven days plus a 10% fuel margin as recommended in Regulatory Guide 1.137, Revision 2, " Fuel-011 Systems for Standby Diesel Generators," position C.I.C(2).
SUMMER - UNIT 1 B 3/4 8-1 AMENDMENT NO. /87,84
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