ML14183A297
| ML14183A297 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 03/03/1995 |
| From: | Bateman W Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML14183A299 | List: |
| References | |
| DPR-23-A-158 NUDOCS 9503100113 | |
| Download: ML14183A297 (7) | |
Text
6 REG0 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 CAROLINA POWER & LIGHT COMPANY DOCKET NO. 50-261 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.
158 License No. DPR-23
- 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Carolina Power & Light Company (the licensee), dated July 29, 1994, as supplemented January 29, 1995, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission'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 Commission; C.
There is reasonable assurance (i) 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 conducted in compliance with the Commission'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 amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.
- 2.
Accordingly, the license is amended by changes to the Technical Specifications, as indicated in the attachment to this license amendment; and paragraph 3.B. of Facility Operating License No. DPR-23 is hereby amended to read as follows:
9503100113 950303 PDR ADOCK 05000261 P
-2 B. Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No. 158, are hereby incorporated in the license. Carolina Power & Light Company shall operate the facility in accordance with the Technical Specifications.
- 3.
This license amendment is effective as of the date of its issuance and shall be implemented within 60 days.
FOR THE NUCLEAR REGULATORY COMMISSION William H. Bateman, Dire tor Project Directorate II-1 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance:
March 3, 1995
ATTACHMENT TO LICENSE AMENDMENT NO. 158 FACILITY OPERATING LICENSE NO. DPR-23 DOCKET NO. 50-261 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages. The revised areas are indicated by marginal lines.
.Remove Pages Insert Pages 3.7-2 3.7-2 3.7-2a 3.7-2a 3.7-4 3.7-4 3.7-4a 3.7-4a
e)
Station battles A and B, a battery charger, A Ar-1 and B or B-1, on each battery and their DC distribution systems are operable.
3.7.2 During power operation the following components may be inoperable:
a)
Provided both diesel generators are operable, power operation may continue with the start-up transformer out of service for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> without reporting to the NRC.
b)
Power operation may continue with the start-up transformer out of service beyond 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provided both diesel generators are operable and the reporting requirements of Specification 6.6.1 are followed.
c)
Power operation may continue if the start-up transformer and one diesel generator is inoperable provided the reporting requirements of Specification 6.6.1 and 6.6.2 are followed.
d)
NOTES-------------------------------------------
- 1.
For the purpose of operability testing, the diesel generator start may be preceded by an engine pre-lube period and followed by a warmup period. The diesel generator is not required to be loaded. The diesel generator shall achieve steady state voltage and frequency during the test.
- 2.
The diesel generator may be inoperable for a total of two hours per test inclusive of the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> allowed time in 2) or
- 3) below.
With either diesel generator inoperable, restore inoperable diesel generator to service within 7 days and perform 1) AND EITHER 2)
OR 3) below:
- 1)
Verify the availability of the required off-site power source within one hour and once per twelve hours thereafter.
AND
- 2)
Determine that the remaining operable diesel generator is not inoperable due to common cause failure within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; AND if the inoperable diesel generator is not restored prior to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, verify the remaining operable diesel generator starts within the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
- 3)
Verify the remaining operable diesel generator starts within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
3.7-2 Amendment No. 89, 1 158
e)
During periods when a diesel generator is being operated for testing purposes, its protective trips listed in Specification 3.7.1.d need not be bypassed after the diesel generator has properly assumed the load on its bus.
3.7-2a Amendment No.
158
Two diesel generators have sufficient capacity to start and run at design load all of the engineered safety features equipment. The safety features operated from one diesel generator can adequately cool the core for any Loss-of-Coolant accident, maintain the containment pressure within the design value, and mitigate the consequences of the design basis accident.
The required actions associated with a single diesel generator being inoperable are intended to provide assurance that a loss of off-site power, during the period that an diesel generator is inoperable, does not result in a complete loss of the engineered safety features equipment. These features are designed with redundant safety related trains. This includes motor driven auxiliary feedwater pumps. Single train systems, such as turbine driven auxiliary feedwater pumps, are not included.
Availability of off-site power sources is verified by verifying that breaker alignment is such that each breaker is in its correct position to ensure that distribution buses and loads are connected to their preferred power source.
The required action in Section 3.7.2(d) provides an allowance to avoid unnecessary testing of the operable diesel generator. All diesel generator inoperabilities must be investigated for common cause failures regardless of how long the diesel generator inoperability persists. The term "common cause failure" means that the cause of the inoperable diesel also exists on the operable diesel.
This investigation is performed by evaluation or by actually testing the operable diesel generator.
If it can be determined that the cause of the inoperable diesel generator does not exist on the operable diesel generator, testing of the operable diesel generator is not performed for a period up to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. If the diesel generator inoperability lasts as long as 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, the operability of the other operable diesel generator is verified by a start within the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the operable diesel generator to provide continued assurance of operability. If the inoperable diesel generator is restored to operability within the subsequent 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> (i.e., between 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br />), and the test of the operable diesel generator has not yet been performed, the test of the operable diesel generator need not be performed. This testing does not require entry into Technical Specification Section 3.0.
If the cause of the initial inoperable diesel generator cannot be confirmed not to exist on the other operable diesel generator, verifying a start of the diesel generator within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> suffices to provide assurance of continued operability of that diesel generator. This testing does not require entry into Technical Specification Section 3.0.
The required action in Section 3.7.2(d) requires only one test of the operable diesel generator in the 7 day Limiting Condition for Operations time period for both of the above conditions.
3.7-4 Amendment No. U$,
124,132, 158
.f it can be determined 01Mt the cause of the inoperable diesel generator exists on the other diesel generator, the other diesel generator is declared inoperable upon discovery, and Technical Specification Section 3.0 will apply.
To minimize wear on moving parts that do not get lubricated when the engine is not running, the operability tests in Section 3.7.2(d) are modified by a note to indicate that the diesel generator start may be preceded by an engine prelube period. The diesel generator may be started at a limited starting speed, followed by a warm up at the lower speed, and then followed by gradual acceleration to synchronous speed. The diesel generator may be partially loaded, but loading is not required for operability testing in Section 3.7.2(d).
The minimum diesel fuel oil inventory available to the diesel generators from the Unit 2 diesel generator fuel oil storage tank (Unit 2 tank) is maintained at all times to assure the operation of either 1) both diesel generators at rated design capacity for at least 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />"', or 2) one diesel generator at rated design capacity for at least 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br />. Diesel fuel is also available to the Unit 2 tank from four Unit 1 I-C turbine fuel oil storage tanks (Unit 1 tanks). This additional storage is comprised of three I-C turbine fuel oil storage tanks at approximately 23,900 gallons capacity each, and one I-C turbine vertical light-off fuel oil storage tank at approximately 23,900 gallons capacity, for a total Unit 1 fuel oil storage capacity of approximately 95,600 gallons. (The Unit 1 I-C turbine horizontal light off fuel oil storage tank capacity is not available to the Unit 2 tank.) Connections are provided for fuel oil transfer from the four Unit 1 tanks to the Unit 2 tank.
Therefore, the minimum diesel fuel oil inventory available to the diesel generators from the total on-site diesel fuel oil storage capacity is maintained at all times to assure the operation of one diesel generator at its rated design capacity for seven days. "Rated design capacity" for this specification is defined as operation at 2500 kw for 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> and 2750 kw for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> in any 24-hour period.
Additional supplies of diesel oil are available in the Hartsville area and from port terminals at Charleston, S.C. and Wilmington, N.C., and inland terminals at Columbia, S.C., Charlotte, N.C., Greensboro, N.C., Fayetteville, N.C., and Raleigh, N.C. Ample trucking facilities exist to assure deliveries to the site within eight hours.
At least one battery charger for each station battery shall normally be in service so that the batteries will always be at full charge in anticipation of a loss-of-AC power incident. This ensures that adequate DC power will be available for emergency uses.
The plant can be safely shut down without the use of off-site power since all vital loads (safety systems, instruments, etc.) can be supplied from the diesel generators.
The two diesel generators, each capable of supplying safeguards loads, and the start-up transformer provide three separate sources of power immediately available for operation of these loads.
3.7-4a Amendment No. fM. 158