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Category:Technical Specifications
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Issuance of Amendment Nos. 306 and 306 to Update of the Loss of Coolant Accident Alternate Source Term Dose Analysis
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Technical Specifications
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Issuance of Amendments Regarding License Amendment Request to Revise Residual Heat Removal and Component Cooling System Technical Specifications Requirements (CAC Nos. MF9124 and MF9125; EPID L-2017-LLA-0166)
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Issuance of Amendment to Extend the Containment Type a and Type C Leak Rate Test Frequency
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Proposed License Amendment Request Regarding Relocation of Snubber Surveillance Requirements from Technical Specifications 4.17 to Snubber Program - Supplement
ML12279A2822012-09-26026 September 2012
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Supplemental Response to Request for Additional Information Related to License Amendment Request for Permanent Alternate Repair Criteria for Steam Generator Tube Inspection and Repair
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Supplemental Information &Typed TS Pages for Proposed License Amendment Request Risk-Informed Justification for Relocation of Specific Surveillance Frequency Requirement to Licensee Controlled Program (Adoption of TSTF-425, Rev 3)
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Proposed Technical Specification Change Temporary Alternate Repair Criteria for Steam Generator Tube Repair for Unit 2
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License Amendment Request Revised Cumulative Core Burnup Applicability Limit for Heatup and Cooldown Curves, Low Temperature Overpressure Protection System Setpoint, and Ltops Enable Temperature
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License Amendment, Correction of Technical Specification Table 3.7.1 Operator Action 3.b
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Proposed License Amendment Request Correction to Technical Specification Table 3.7-1 Operator Action 3.b
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Units, 1 and 2, Tech Spec Pages for Amendments 261 and 261 Regarding the Revision to Various Setting Limits and the Overtemperature T/Overpower T Time Constants
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Proposed Technical Specifications Change Missed Surveillance Requirements
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Proposed License Amendment Request Consolidated Line Item Improvement Process Technical Specification Improvement Regarding Steam Generator Tube Integrity Response to Request for Additional Information
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Proposed License Amendment Request Containment Sump Inspection Surveillance
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Technical Specifications, Issuance of Amendments Regarding Change to Exclusion Area Boundary, MC8315 & MC8316
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Proposed Technical Specifications Change Revision of Main Control Room and Emergency Switchgear Room Air Conditioning System Requirements
2023-06-29
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Text
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. Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, determine that the OPERABLE diesel generator is not inoperable due to common cause failure or demonstrate the operability of the remaining OPERABLE diesel generator by performing Surveillance Requirement 4.6.A.1.a. 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 />.
L.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. 241 and 240 I
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 that 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 2 50,000 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. The Unit 1 diesel generator and the Unit 2 diesel generator are dedicated to emergency buses IH and 2H, respectively. A third diesel generator is provided as a "swing diesel" and is shared by Units I and 2. Upon receipt of a safety injection signal on a unit, the shared diesel generator automatically aligns to either emergency bus IJ (Unit 1) or 2J (Unit 2) as a backup power supply for the accident unit. The shared diesel is configured to preferentially load to the Unit 2 emergency bus on a loss of offsite power without a safety injection signal. The Unit I and Unit 2 diesel generators also supply power for certain common or shared plant systems/components. 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 Amendment Nos. 241 and 240 I
TS 3.16-7 TS action statement 3.16.B.1.a.2 provides an allowance to avoid unnecessary testing of an OPERABLE EDG(s). If it can be determined that the cause of an inoperable EDG does not exist on the OPERABLE EDG(s), operability testing does not have to be performed. If the cause of the inoperability exists on the other EDG(s), then the other EDG(s) would be declared inoperable upon discovery, and the applicable required action(s) would be entered. Once the failure is repaired, the common cause failure no longer exists and the operability testing requirement for the OPERABLE EDG(s) is satisfied. If the cause of the initial inoperable EDG cannot be confirmed not to exist on the remaining EDG(s),
performance of the operability test within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provides assurance of continued operability of those EDG(s).
In the event the inoperable EDG is restored to OPERABLE status prior to completing the operability testing requirement for the OPERABLE EDG(s), the corrective action program will continue to evaluate the common cause possibility, including the other unit's EDG or the shared EDG. This continued evaluation, however, is no longer under the 24-hour constraint imposed by the action statement.
According to Generic Letter 84-15 (Ref. 6), 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is reasonable to confirm that the OPERABLE EDG(s) is not affected by the same problem as the inoperable EDG.
References (1) UFSAR Section 8.5 Emergency Power System (2) UFSAR Section 9.3 Residual Heat Removal System (3) UFSAR Section 9.4 Component Cooling System (4) UFSAR Section 10.3.2 Auxiliary Steam System (5) UFSAR Section 10.3.5 Condensate and Feedwater System (6) Generic Letter 84-15, "Proposed Staff Actions to Improve and Maintain Diesel Generator Reliability," dated July 2, 1984 Amendment Nos. 241 and 240 I
