Letter Sequence Other |
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MONTHYEARML0306400872003-03-0505 March 2003
Memo, Note to Fille, Conference Call on 1/26/03 Repair of Buried Fuel Oil Storage Tank During Plant Operation
Project stage: Other
ML0312902392003-04-30030 April 2003
Transmittal of Event Classification Guide Technical Basis
Project stage: Request
ML0312902322003-05-0808 May 2003
Graph Emergency Diesel Fuel Oil Consumption
Project stage: Other
ML0312803332003-05-0808 May 2003
Memo, Facsimile Transmissions Supporting Upcoming Conference Call. (Tac Nos. MB6291 & MB6292)
Project stage: Other
ML0325801402003-09-10010 September 2003
Technical Specifications Pages for Amendments 236 & 235, Revising Technical Specifications to Add Provisions to Permit Inspection & Related Repair of Buried Fuel Oil Storage Tank During Plant Operation
Project stage: Other
ML0325404022003-09-10010 September 2003
Amendments 236 & 235 to Licenses DPR-32 & DPR-37, Respectively. Amendments Revise Technical Specifications to Add Provisions to Permit Inspections & Related Repair of Buried Fuel Oil Storage Tank During Plant Operation
Project stage: Other
2003-04-30
[Table View] |
Technical Specifications Pages for Amendments 236 & 235, Revising Technical Specifications to Add Provisions to Permit Inspection & Related Repair of Buried Fuel Oil Storage Tank During Plant Operation| ML032580140 |
| Person / Time |
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| Site: |
Surry  |
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| Issue date: |
09/10/2003 |
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| From: |
Gratton C
NRC/NRR/DLPM/LPD2 |
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| To: |
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| References |
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| TAC MB6291, TAC MB6292 |
| Download: ML032580140 (3) |
|
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[Table view] |
Text
Zo TS 3.16-2
- 4. Two physically independent circuits from the offsite transmission network to energize the 4,160V and 480V emergency buses. One of these sources must be immediately available (i.e. primary source) and the other must be capable of being made available within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> (i.e. dependable alternate source).
- 5. Two OPERABLE flow paths for providing fuel to each diesel generator.
- 6. Two station batteries, two chargers, and the DC distribution systems OPERABLE.
- 7. Emergency diesel generator battery, charger and the DC control circuitry OPERABLE for the unit diesel generator and for the shared back-up diesel generator.
B. During power operation or the return to power from HOT SHUTDOWN, the requirements of specification 3.16-A may be modified by one of the following:
l.a. With either unit's dedicated diesel generator or shared backup diesel generator unavailable or inoperable:
- 1. Verify the operability of two physically independent offsite AC circuits within one hour and at least once per eight hours thereafter.
- 2. If the diesel generator became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the operability of the remaining OPERABLE diesel generator daily. For the purpose of operability testing, the second diesel generator may be inoperable for a total of two hours per test provided the two offsite AC circuits have been verified OPERABLE prior to testing.
- 3. If this diesel generator is not returned to an OPERABLE status within 7 days, the reactor shall be brought to HOT SHUTDOWN 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
I.b. One diesel fuel oil flow path may be "inoperable" for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provided the other flow path is proven OPERABLE. If after 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the inoperable flow path cannot be returned to service for reasons other than buried fuel oil storage tank inspection and related repair, the diesel shall be considered "inoperable."
When the emergency diesel generator battery, charger or DC control circuitry is inoperable, the diesel shall be considered "inoperable."
AmendmentNos. 236 and 235
TS 3.16-3
- 2. If a primary source is not available, the unit may be operated for seven (7) days provided the dependable alternate source can be OPERABLE within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. If specification A-4 is not satisfied within seven (7) days, the unit shall be brought to COLD SHUTDOWN.
- 3. One battery may be inoperable for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provided the other battery and battery chargers remain OPERABLE with one battery charger carrying the DC load of the failed battery's supply system. If the battery is not returned to OPERABLE status within the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period, the reactor shall be placed in HOT SHUTDOWN. If the battery is not restored to OPERABLE status within an additional 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the reactor shall be placed in COLD SHUTDOWN.
- 4. One buried fuel oil storage tank may be inoperable for 7 days for tank inspection and related repair, provided the following actions are taken:
- a. prior to removing the tank from service, verify tat 50,000 gallons of replacement fuel oil is available offsite and transportation is available to deliver that volume of fuel oil within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, and
- b. prior to removing the tank from service and at least once every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, verify that the remaining buried fuel oil storage tank contains 2 17,500 gallons, and
- c. prior to removing the tank from service and at least once every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, verify that the above ground fuel oil storage tank contains 2Ž50,000 gallons.
If these conditions are not satisfied or if the buried fuel oil storage tank is not returned to OPERABLE status within 7 days, both units shall be placed in HOT SHUTDOWN 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
C. The continuous running electrical load supplied by an emergency diesel generator shall be limited to 2750 KW.
Basis The Emergency Power System is an on-site, independent, automatically starting power source. It supplies power to vital unit auxiliaries if a normal power source is not available. The Emergency Power System consists of three diesel generators for two units. One generator is used exclusively for Unit 1, the second generator for Unit 2, and the third generator functions as a backup for either Unit 1 or 2. The diesel generators have a cumulative 2,000 hour0 days <br />0 hours <br />0 weeks <br />0 months <br /> rating of 2750 KW. The actual loads using conservative AmendmentNos. 236 and 235
'; - t TS 3.16-6 The day tanks are filled by transferring fuel from any one of two buried tornado missile protected fuel oil storage tanks, each of 20,000 gal capacity. Two of 100 percent capacity fuel oil transfer pumps per diesel generator are powered from the emergency buses to assure that an operating diesel generator has a continuous supply of fuel. The buried fuel oil storage tanks contain a seven (7) day supply of fuel, 35,000 gal minimum, for the full load operation of one diesel generator; in addition, there is an above ground fuel oil storage tank on-site with a capacity of 210,000 gal which is used for transferring fuel to the buried tanks.
One of the two buried fuel oil storage tanks may be inoperable to permit inspection and related repair of that buried fuel oil storage tank. While one tank is removed from service, the remaining buried fuel oil storage tank supplies fuel oil to the EDGs of both units. Prior to removal of one buried tank from service and while it is inoperable, verification of the volume in the remaining buried fuel oil storage tank and the above ground fuel oil storage tank is required to ensure an adequate source of fuel oil remains available onsite. In addition, verification of the offsite replacement fuel oil supply is also required. While one buried tank is out of service, the verification of the onsite and offsite fuel oil sources continues to support full load operation of one diesel generator for seven days.
If a loss of normal power is not accompanied by a loss-of-coolant accident, the safeguards equipment will not be required. Under this condition the following additional auxiliary equipment may be operated from each emergency bus:
A. One component cooling pump B. One residual heat removal pump C. One motor-driven auxiliary steam generator feedwater pump The emergency buses in each unit are capable of being interconnected under strict administrative procedures so that the equipment which would normally be operated by one of the diesels could be operated by the other diesel, if required.
The electrical power requirements and the emergency power testing requirements for the auxiliary feedwater cross-connect are contained in TS 3.6.B.4.c and TS 4.6 respectively.
AmendmentNos. 236 and 235