ML14183A187
| ML14183A187 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 02/07/1991 |
| From: | Adensam E Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML14183A188 | List: |
| References | |
| DPR-23-A-132 NUDOCS 9102110209 | |
| Download: ML14183A187 (11) | |
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NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 CAROLINA POWER & LIGHT COMPANY DOCKET NO. 50-261 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.
132 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 May 8, 1989, as supplemented September 20, 1989, and September 19, 1990, 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 -ssuance 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:
9102110209 910207 PDR ADOCK 05000261 P
-2 (B) Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No. 132, 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.
FOR THE NUCLEAR REGULATORY COMMISSION Orignal Siqned By:
Ronnie Lo for:
Elinor G. Adensam, Director Project Directorate II-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance: February 7, 1991 U~7-:.[7yP RPR: PM:-PD2 1DR RF~osa r-J OGC 4,
- D:PD21:D NAME PA e on Lo:sw
- SELB:NRR densa DATE :
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OFFICIAL RECORD COPY
ATTACHMENT TO LICENSE AMENDMENT N0. 132 FACILITY OPERATING LTCENSE 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 3.7-1 3.7-1 3.7-2 3.7-2 3.7-3 3.7-3
.3.7-3a 3.7-4 3.7-4 4.6-3 4.6-3 4.6-3a 4.6.-3a 4.6-4 4.6-4
3.7 AUXILIARY ELECTRICAL SYSTEMS Applicability Applies to the availability of electrical power for the operation of plant auxiliaries.
Objective To define those conditions of electrical power availability necessary (1) to provide for safe reactor operation, and (2) to provide for the continuing availability of engineered safeguards.
Specification 3.7.1 The reactor shall not be made critical without:
a)
The 110 KV-4160 Volt start-up transformer in service; b) 480-Volt buses El and E2 energized; c) 4160-Volt buses 2 and 3 energized; d)
Two diesel generators OPERABLE with a minimum supply of 19,000 gallons of fuel oil available to the diesel generators from the Unit 2 diesel generator fuel oil storage tank and an additional 15,000 gallons available to the diesel generators from either the Unit 1 I-C turbine fuel oil storage tanks or a combination of the Unit 1 I-C turbine fuel oil storage tanks and the Unit 2 diesel generator fuel oil storage tank, and with the following protective trips for each diesel generator bypassed:
- 1)
Low lube oil pressure
- 2)
Low coolant pressure
- 3)
High coolant temperature
- 4)
High crankcase pressure
- 5)
Start failure -
Governor Shutdown 3.7-1 Amendment No.Jt4 132
e)
Station batteries A and B, a battery charger, A or A-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 Specifications 6.6.1 and 6.6.2 are followed.
d)
Power operation may continue for seven days if one diesel.
generator is inoperable provided the remaining diesel generator is tested daily to ensure operability and the engineered safety features associated with this diesel generator shall be operable.
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.
3.7-2 Amendment No. 89 132
f)
Power operation may continue with one battery inoperable provided the inoperable battery is restored to operable status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at least hot shutdown within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and in cold shutdown within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
g)
Power operation may continue with one battery charger inoperable provided the inoperable charger is restored to operable status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or the battery's backup charger is placed in service within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
h)
With both battery chargers for a battery inoperable restore a battery charger to o.perable status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at least hot shutdown within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and in cold shutdown within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />..
3.7.3 Backfeeding the El and E2 safety related busses through the main and unit auxiliary transformers will only occur during cold shutdown, unless nuclear safety considerations require it to be done during hot shutdown.
Basis The electrical system equipment is arranged so that no single contingency can deactivate enough safety features equipment to jeopardize the plant safety.
The 480-volt equipment is arranged on 9 buses.
The 4160-volt equipment is supplied from 5 buses.
Multiple outside sources supply station service power to the plant..
The plant auxiliary equipment is arranged electrically so that multiple items receive their power from the two different sources.
For example, the charging pumps are supplied from the 480-volt buses No. DS, El and E2; the four containment fans are divided between 480-volt buses No. El and E2; and the two residual heat removal pumps are on separate 4 80-volt buses No.
El and E2.
Valves are supplied from motor control centers.
3.7-3 Amendment No. 88 132
One outside source of power is required to give sufficient power to run normal operating equipment. One transmission line can supply all the plant auxiliary power.
The. 110-4.16 KV start-up transformer can supply all the auxiliary loads.
The bus arrangements specified for operation ensure that power is available to an adequate number of safety features auxiliaries.
With additional switching, more equipment could be out of service without infringing on safety.
3.7-3a Amendment No. 132
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, and they also maintain the containment pressure within the design value.
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 />( 1 ), 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.
3.7-4 Amendment No.
1 132
4.6.3.5 The batteries shall be subjected to a performance test once every five years.
4.6.3.6 The batteries shall be subjected to a service test at Least once per 18 months, during a shutdown, by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for the design duty cycle.
Surveillance 4.6.3.5 may be performed at five year intervals in lieu of this test.
4.6.4 Pressurizer Heaters' Emergency Power Supply The emergency power supply for the pressurizer heaters shall be demonstrated operable each refueling shutdown by transferring power from normal to the emergency power supply and energizing the heaters.
4.6.5 Battery Chargers Demonstrate the in-service battery charger is operable by monitoring the output voltage daily, five days per week, and during normal equalizing charges.
Basis The tests specified are designed to demonstrate that the diesel generators will provide power for operation of equipment.
They also assure that the emergency generator system controls and the control systems for the safety features equipment will function automatically in the event of a loss of all normal 480 V AC station service power.(1)
The test to ensure proper operation of engineered safety-features upon loss of AC power is initiated by tripping the breakers supplying normal power to the 480 volt buses and initiating a safety injection signal.
This test demonstrates the proper tripping of motor feeder breakers, main supply and tie breakers on the affected bus, operation of the diesel generators, and sequential starting of essential equipment. The test of the diesel protective bypass circuits is performed to verify their operability.
4.6-3 Amendment No. 00 132
The testing frequency specified will be often enough to identify and correct any mechanical or electrical deficiency before it can result in a system failure. The fuel supply and starting circuits and controls are continuously monitored and any faults are alarm indicated. An abnormal condition in these systems would be signaled without having to place the diesel.generators themselves on test.
On-site emergency power is available-from two emergency diesel-generator sets.
Each engine-generator set consists of a Fairbanks-Morse Model 38TD8-1/8 engine coupled to a Fairbanks-Morse 3125 kva,.0.8 power factor, 900 RPM, 3 phase, 60 cycle, 480 volt generator. The units have a continuous rating of 2500 kW with a 2-hour overload capability of 2750 kW in any 24-hour period.
4.6-3a Amendment No. 9 132
.Each unit as a backup to the normal standby AC power supply is capable of sequentially starting and supplying the power requirement of one complete set of safety features equipment.
It can accept full load within 35 seconds after the initial starting signal,()
and will sequentially start and supply the power requirements of one complete set of safety features equipment in 50 seconds.(2)
A supply of 19,000 gallons of fuel will ensure the operation of both diesels carrying 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 one diesel for at least 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br />.
An additional 15,000 gallons will be available to assure an adequate fuel supply for at least seven days of operation of a single diesel generator at its rated design capacity.
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 at 2750 kW for two hours in any 24-hour period.
Station batteries will deteriorate with time, but precipitous failure is extremely unlikely. The surveillance specified is that which has been demonstrated over the years to provide an indication of a cell becoming unserviceable long before it fails.
The equalizing charge, as recommended by the manufacturer, is vital to maintaining the ampere-hour capability of the battery.
As a check upon the effectiveness of the equalizing charge, the battery should be loaded rather heavily and the voltage monitored as a function of time.
Experience has shown that this test should be repeated at intervals to detect deterioration of cells.(3)(4)
If a cell has deteriorated or if a connection is loose, the voltage under load will drop excessively indicating replacement or maintenance.
References (1)
FSAR Section 8.2 (2).
FSAR Table 8.2-4 (3)
AEC Information Letter ROE:
67-1, January 31, 1967.
(4)
FSAR Section 8.3.2 4.6-4 Amendment No. 124 132