ML20211P298
| ML20211P298 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 10/07/1997 |
| From: | Pulsifer R NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20211P303 | List: |
| References | |
| NUDOCS 9710200156 | |
| Download: ML20211P298 (8) | |
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UNITED STATES j
NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 206e&C001
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Q 340NWEALTH EDIS0N COMPANY A!!D MIDAMERICAN ENERGY COMPANY DOCKET NO. 50-254 QQA0 CITIES NUCLE 85LEQWER STATION. UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.178 License No. DPR-29 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by Commonwealth Edison Company (the licensee) dated May 1, 1997, complies with the standards and l
requirements of the Atomic 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 ty this amendment can be conducted without endangering the health and safety of the public, and tii) 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 comon defense and security or to the health and s:fety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission'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-29 is hereby acended to read as follows:
9710200156 971007 PDR ADOCK 05000254 P
PDR u
- B.
Technical Soecifications The Technical Specifications contained in Appendices A and B, as
-revised through Amendment No.178, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.
3.
This license amendment is effeccive as of the date of its issuance and shall be implemented within 30 days.
FOR THE NUCLEAR REGULATORY COMMISSION RobertM.Pulsffer,ProjectManager Project Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactar Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance:
October 7, 1997
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UNITED STATES Ij NUCLEAR REGULATORY COMMISSION y"
e WASHINGTON, D.C. 30666 4 001 49.....,o EgipNWEALTH EDISON COMPANY AND MIDAMERICAN ENERGY COMPANY DOCKET NO. 50-265 DV80 CITIES NUCLEAR POWER STATION. UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.176 License No. DPR-30 1.
The Nuc' ear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by Comonwealth Edison Company (the licensee) dated May 1, 1997, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Comission's rules and regulations set forth in i
10 CFR Chapter I; B.
The facility will operate in conformity with the application, the provisionis of the Act, and the rules and regulations of the Comission; C.
There is reasonable assurance (1)d without endangering the health that the activities authorized by this amendment can be conducte and safety of the public, and (ii) that such activities will be conducted in compliance with the Connission'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 Comission's regulations and all app 1hable 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-30 is hereby amended to read as follows:
1
B.
Technical Soecifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No.176, are hereby incorporated in the license. The licensee 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 30 days.
FOR THE NUCLEAR R ATORY COMMISSION Robert M. Pulsifer, Project Manager Project Directorate III-2 i
Division of Reactor Projects - III/IV Office of Puclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance: October 7, 1997
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ATTACHMENT TO LICENSE AMENDMENT 105.178 AND 176 FACILITY OPERATING LICENf,E NOS. DPR-29 AND DPR-30 DOCKET NOS. 50-254 AND 50-265 Revise the Appendix A Technical Specifications by removing the pages identified below and inserting the attached pages. The revised pages are identified by the captioned amendment number and contain marginal lines indicating the area of change.
REMOVE INSERT 3/4.9-5 3/4.9-5 B 3/4.9-3 B 3/4.9-3 B 3/4.9-3a I
^
ELECTRICAL POWER SYSTEMS A.C. Sources - Operating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS
- 5. With two of the above required b.
Verify the diesel generator offsite circuit power sources rejects a load greater than or inoperable:
equal to its largest single emergency load, and:
- a. Restore at least one of the inoperable offsite circuits to 1)
Following load rejection, the OPERA 8LE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> frequency is s 66.73 Hz.
or be in at least HOT SHUTDOWN within the next-12-hours and in 2)
Within 3 seconds following load COLD SHUTDOWN within the rejection, the voltage is 4160 following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
i 420 volts,
- b. Restore at least two offsite 3)
Within 4 seconds following load circuits to OPERABLE status rejection, the frequency is 60 within 7 days from the time of i 1.2 Hz.
initial loss or be in at least L
HOT SHUTDOWN within the next 12 c.
Verifying the diesel generator hours and in COLD SHUTDOWN capabilitytorejectaig)d within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, between 2470 and 2600 kW without tripping on'overspeed.
- 6. With both of the above required The generator volgge shall not die >al generator power sources exceed 5000 volts dtiring or inoperable:
following the load rejection,
- a. Demonst-ate the OPERABILITY of d.
Simulating a loss of offsite power the ofrsite circuit power by itself, and:
sources by performing Survelliance Requirement 1)
Verifying de-energization of 4.9.A.1.a within I hour and at the emergency buses, and load least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> hdjing rom the emergency e
thereafter.
2)
Verifying the diesel starts on the auto-start signal, energizes the emergency buses with permanently connected loads in slo seconds energizes theauto-connectedsbutdown loads and operates with this-load for it5 minutes. After energization the steady-state voltage and-frequency of the emergency busses shall be maintained at 4160 i 420 volts and 60 i 1.2 Hz, respectively, durir.g this test.
tary transients outside of the load range do not invalidate this test. Diesel generator toedings any include gra h l L
as recommesnded by the sanuf acturer/verdor. This survelttance shall be conducted on only one diesel generator at
'ncuentary transients outside of the voltage limit do not invalidate this tess.
QUAD CITIES - UNITS 1 & 2 3/4.9-5 Amendment Nos.178 4 176 l
ELECTRICAL POWER SYSTEMS B 3/4.9 BASES Surveillance Requirements are also provided for demonstrating the OPERABILITY of the diesel generators. The specified testing is based on the guidance provided in Regulatory Guide 1.9, Revision 3 (7/93), Regulatory Guide 1.108, Revision 1, and Regulatory Guide 1.137, Revision 1, as modified by plant specific analysis, diesel generator manufacturer / vendor recommendations and responses to Generic Letter 8415.
Surveillance Requirement 4.9.A.8.b demonstrates the diesel generator load response characteristics and capability to reject the largest single emergency load while maintaining a specified margin to the overspeed trip. Each diesel generator is provided with an engine overspeed trip to prevent damage to the engine. Recovery from the transient caused by the loss of a large load could cause diesel engine overspeed, which,if excessive, might result in a trip of the engine. The recovery response of the diesel generator will be demonstrated by verification of the steady state voltage and frequency following the load rejection. The largest single emergency load associated with each diesel generator is the residual heat removal service water (RHRSW) pump (900 horsepower nameplate). This Surveillance can be accomplished by one of two methods. One method is to simultaneously trip loads supplied by the diesel generator, which have a minimum combined load equal to or greater than the RHRSW pump. The other method is to trip tb RHRSW pump.
The diesel generators are equipped with a prelubrication system which maintains a continuous flow of oil to the diesel engine moving parts while the engine is shutdown. The purpose of this system is to increase long term diesel generator reliability by reducing the stress and wear caused by frequent dry starting of the diesel generator. The diesel generator prelube may be accomplished either through normal operation of the installed prelubrication system or by manual prelubrication of the diesel generator in accordance with the manufacturer's/ vendor's instructions. Performance of an idle start of the diesel generator is not considered to be a means of prelubrication.
A periodic " start test" of the diesel generators demonstrates proper startup from standby conditions, and verifies that the required generator voltage and frequency is attained. For this test, the diesel generator may be slow started and reach rated speed on a prescribed schedule that is selected to minimize stress and wear. In cases where this Surveillance Requirement is being used to identify a possible common mode failure in accordance with the action provisions, this test eliminates the risk of paralleling two cf the remaining A.C. sources, which may compromise the A.C. source independence.
A " load-run test" normally follows the periodic " start test" of the diesel generator to demonstrate operation at or near the continuous rating. This surveillance should only be conducted on one diesel generator at a time in order to avoid common mode failures that might result from offsite circuit or grid perturbations. A minimum run time of 60 minutes is requireo to stabilize engine temperatures. Actual run time should be in accordance with vendor recommendations with regard to good operating practice and should be sufficient to ensure that cooling and lubrication are adequate for extended periods of operation, while minimizing the time that the diesel generator is connected to the offsite source. This Surveillan::e Requirer w ev include gradual loading, as recommended by the manufacturer, so that mechanical stt ss and weai en ihe diesel engine are minimized. A load band is provided to avoid routine overloading of the diesel generators.
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QUAD CITIES - UNITS 1 & 2 B 3/4.9 3 Amendment Nos.178 3176 i
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ELECTRICAL POWER SYSTEMS B 3/4.9 l
BASES Momentary transients outside the load band because of changing bus loads do not impact the validity of this test.
A periodic surveillance requirement is provided to assure the diesel generator is aligned to provide -
L standby power on demand. Periodic surveillance requirements also verify that, without the aid of the refill compressor, sufficient air start capacity for each diesel generator is available. With either pair of air receiver tanks at the minimum specified pressure, there is sufficient air in the tanks to start the associated diesel generator.
The periodicity of surveillance requirements for the shared diessi generators shall be equivalent to those required for the unit diesel generators. For example, it is not the intention to perform surveillances for the shared diesel generators twice during the specified surveillance intervalin order to satisfy each unit's diesel generator surveillance requirements. By appropriately staggering
~ QUAD CITIES - UNITS 1 & 2 B 3/4.9-3a Amendment Nos178 & 176 I