PLA-5891, Proposed Amendment No. 275 to Unit 1 Facility Operating License NPF-14 and Proposed Amendment No. 244 to Unit 2 Facility Operating License NPF-22: Exigent Change to Technical Specification 3.8.4, PLA-5891

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Proposed Amendment No. 275 to Unit 1 Facility Operating License NPF-14 and Proposed Amendment No. 244 to Unit 2 Facility Operating License NPF-22: Exigent Change to Technical Specification 3.8.4, PLA-5891
ML051250292
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 04/27/2005
From: Mckinney B
Susquehanna
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
PLA-5891
Download: ML051250292 (33)
v • d • e


Text

Britt T. McKinney PPL Susquehanna, LLC  %. 4, Vice President-Nuclear Site Operations 769 Salem Boulevard Berwick, PA 18603 *!,Ossmoi,#,#

APR 2 7 2005 Tel. 570.542.3149 Fax 570.542.1504 btmckinney pplweb.com ppl *M.__

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U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop OPI-17 Washington, DC 20555 SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED AMENDMENT NO. 275 TO UNIT 1 FACILITY OPERATING LICENSE NPF-14 AND PROPOSED AMENDMENT NO. 244 TO UNIT 2 FACILITY OPERATING LICENSE NPF-22: EXIGENT CHANGE TO TECHNICAL SPECIFICATION 3.8.4 Docket Nos. 50-387 PLA-5891 and 50-388 In accordance with the provisions of 10 CFR 50.90, PPL Susquehanna, LLC is submitting a request for amendment to the Technical Specifications for Susquehanna Unit 1 and Unit 2.

In accordance with the provisions of 10 CFR 50.91(a)(6), PPL Susquehanna, LLC requests this amendment be processed on an exigent basis. This exigent amendment request is being made because of the desire to verify, on an expedited basis, that the Unit 1 125V battery chargers are not degraded such that a failure could occur as was experienced on Unit 2 on April 10, 2005. As described in Emergency Notification

  1. 41585, a Technical Specification required shutdown of Unit 2 was implemented due to a failure of a Unit 2 125 VDC battery charger. The current Technical Specification (TS) requirements do not afford enough time to maintain 100% power operation and perform the desired inspections and related activities (defined as preemptively replacing the potentially affected Unit 1 wiring and any other reasonably expected repairs).

The Unit 1 chargers have been determined to be operable. However, as an extension of the extent of condition inspections and actions taken on Unit 2, it is prudent to verify that similar conditions do not exist on Unit 1. The special inspection and related activities will include the results of the ongoing Unit 2 cause evaluation.

The Unit 2 chargers are OPERABLE, however, the changes to the Unit 2 Technical Specifications are being requested as a contingency should it be necessary to perform further work on the Unit 2 125 VDC battery chargers as a result of the ongoing cause evaluation from the April 10, 2005 Unit 2 125 VDC battery charger failure.

The enclosure to this letter contains PPL's evaluation of these proposed changes.

Included are a description of the proposed change, technical analysis of the change, regulatory analysis of the change (No Significant Hazards Consideration and the 1466)

Document Control Desk PLA-5891 Applicable Regulatory Requirements), and the environmental considerations associated with the change. to this letter contains the applicable pages of the Susquehanna SES Unit 1 and Unit 2 Technical Specifications, marked to show the proposed changes. contains the applicable pages of the Susquehanna SES Unit 1 and Unit 2 Technical Specifications Bases; also marked to show the proposed changes (provided for information only). There are no regulatory commitments associated with these proposed Amendments which have been reviewed by the Susquehanna SES Plant Operations Review Committee and the Susquehanna Review Committee.

PPL will be prepared to perform the battery charger special inspection related activities on each of the Unit 1 125 VDC chargers, within the proposed extended allowed outage time, beginning on May 19, 2005. Therefore, we request NRC complete its review and approval of the proposed changes by May 12, 2005, with the changes remaining in effect until all planned special inspection and related activities are completed on the affected chargers, but no later than 60 days from the issuance of the Amendments.

Any questions regarding this request should be directed to Mr. Duane L. Filchner at (610) 774-7819.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on: 1-2i7L- 0S B. T. McKinney

Enclosure:

PPL Susquehanna Evaluation of the Proposed Changes Attachments:

Attachment 1 - Proposed Technical Specification Changes (Mark-ups)

Attachment 2 - Proposed Technical Specification Bases Changes (Mark-ups) cc: NRC Region I Mr. A. J. Blamey, NRC Sr. Resident Inspector Mr. R. V. Guzman, NRC Project Manager Mr. R. Janati, DEP/BRP

ENCLOSURE TO PLA-5891 PPL SUSQUEHANNA EVALUATION OF PROPOSED CHANGE UNIT 1 AND UNIT 2 CHANGES TO TECHNICAL SPECIFICATION 3.8.4

1. DESCRIPTION
2. PROPOSED CHANGE
3. BACKGROUND 3.1 Current Regulatory Requirements 3.2 Description of the Current Requirements 3.3 Description of the Current Systems 3.4 Description of the Proposed Change (detailed)
4. TECHNICAL ANALYSIS
5. REGULATORY ANALYSIS 5.1 No Significant Hazards Consideration 5.2 Applicable Regulatory Requirements/Criteria
6. ENVIRONMENTAL CONSIDERATIONS

Enclosure to PLA-5891 Page 1 of 14 PPL EVALUATION

Subject:

UNIT 1 AND UNIT 2 CHANGE TO TECHNICAL SPECIFICATION 3.8.4

1.0 DESCRIPTION

This is a request to amend Facility Operating License Nos. NPF-14 and NPF-22 for PPL Susquehanna, LLC (PPL), Susquehanna Steam Electric Station (SSES)

Unit 1 and Unit 2. It represents a proposed revision to the SSES Technical Specification (TS) 3.8.4 "DC Sources - Operating."

This exigent amendment request is being made because of the desire to verify, on an expedited basis, that the Unit 1 125 VDC battery chargers are not degraded such that a failure could occur as was experienced on Unit 2. The Unit 1 chargers have been determined to be OPERABLE. No evidence identified to date suggests that a failure as occurred on Unit 2 is imminent on any of the Unit 1 chargers.

Inspections performed on all Unit 2 charges revealed a unique configuration for the charger that failed. The wiring configuration found in the failed charger is currently believed to be the cause of the failure. This configuration was not found on the other three (3) Unit 2 chargers, and it is not expected to be found on the Unit 1 chargers. The Unit 1 chargers have been in service for over twenty years and have not exhibited any failures of a similar nature. An industry search also failed to identify any similar events. However, based on the findings on Unit 2, it is prudent to perform special inspection and related activities on Unit 1 on an expedited basis. The special inspection and related activities will include the results of the ongoing Unit 2 cause evaluation.

The Unit 2 chargers are OPERABLE, however, the changes to the Unit 2 Technical Specifications are being requested as a contingency should it be necessary to perform repairs to the Unit 2 125 VDC battery chargers, as a result of the ongoing cause evaluation from the April 10, 2005 Unit 2 125 VDC battery charger failure.

The current Technical Specification (TS) requirements do not afford enough time to maintain 100% power operation and perform the desired special inspection and related activities.

Enclosure to PLA-5891 Page 2 of 14

2.0 PROPOSED CHANGE

S The proposed changes are to TS Section 3.8.4. These changes request a revision to Condition A for an electrical power subsystem that has been taken out of service for the purposes of special inspection and related activities.

This proposed change allows for an increase in the completion time for an inoperable battery charger provided the battery capabilities are maintained in accordance with TS 3.8.6 "Battery Cell Parameters." It is PPL's intention to utilize a portable battery charger to maintain the battery within the limits of TS 3.8.6, while each of the 125 VDC battery chargers is removed from service, one at a time, to perform special inspection and related activities.

The proposed changes are described in Section 3.4 below. The marked-up TS pages are provided in Attachment 1 to this submittal. The associated marked-up TS Bases pages are provided for information in Attachment 2 to this submittal.

3.0 BACKGROUND

3.1 Current Regulatory Requirements SSES FSAR Section 8.3.2.2.1, Compliance with General Design Criteria, Regulatory Guides, and IEEE Standards, provides detailed discussion of SSES compliance with the applicable regulatory requirements and guidance. The proposed TS amendment does not alter the design or function of any operable DC electrical power subsystem, it does not result in any change in the qualification of any operable subsystem, and it does not result in the reclassification of any subsystem's status in the areas of shared, safety related, independent, redundant, and physical or electrical separation.

These proposed changes will allow PPL to remove a 125 VDC battery charger from service for up to 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. All existing SSES commitments to IEEE Standard 450, "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications," reflect commitment to the 1995 edition of IEEE Standard 450 and are unaffected by these changes.

3.2 Description of the Current Requirements TS Section 3.8.4, "DC Sources - Operating" requires that the Class IE 125 VDC and 250 VDC electrical power subsystems listed in Table 3.8.4-1 shall be operable in Modes 1, 2, and 3. Refer to FSAR chapter 8.3.2, "DC Power Systems," for a

Enclosure to PLA-5891 Page 3 of 14 detailed description of the SSES Class 1E 125 VDC and 250 VDC electrical power subsystems.

Condition A states that in the event that a DC electrical power subsystem listed in the table becomes inoperable, the inoperable DC electrical power subsystem must be 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 />.

Condition B states that if the inoperable DC electrical power subsystem cannot be restored within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, the plant must be in Mode 3 within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and then be in Mode 4 within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

Condition C requires verification (within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />) that all ESW valves associated with Diesel Generator E (D/G E) are closed when the associated DC electrical subsystem is inoperable and the D/G E is not aligned to the Class lE distribution system.

Condition D states that when the D/G E is aligned and its associated DC electrical subsystem is inoperable, the D/G E must be declared inoperable within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

Condition E only applies to Unit 2 TS 3.8.4 and it requires that with one or more Unit 1 125 V DC electrical power subsystem(s) inoperable, the associated Unit 1 and common loads are required to be transferred to the corresponding Unit 2 DC electrical power subsystem within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. Further, the transferred Unit 1 and common loads are required to be restored to the corresponding Unit 1 DC electrical power subsystem within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> after the Unit 1 subsystem is restored to operable.

Note: The Unit 1 125 VDC loads and the 125 VDC loads common to both units, e.g., Emergency Service Water (ESW) and D/G controls, etc. are normally supplied by the Unit 1 125 VDC DC electrical subsystems. These common load circuits can be transferred to the Unit 2 125 VDC electrical power subsystems to assure the common load availability for Unit 2.

Condition F (Unit 2 only) states that if the Required Actions and associated Completion Times of Condition E are not met, immediately declare the associated common loads inoperable.

TS Section 3.8.4 has several Surveillance Requirements (SR) which demonstrate operability. The required SRs are as follows:

  • SR 3.8.4.1 requires that the 125 VDC battery terminal voltage be verified to be greater than or equal to 129 Volts (V) and that the 250 VDC battery terminal voltage be verified to be greater than or equal to 258 V every 7 days while the

Enclosure to PLA-5891 Page 4 of 14 batteries are maintained on a float charge unless the battery is on equalize charge or has been on equalize charge at any time during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, in which case the surveillance frequency is 14 days.

  • SR 3.8.4.2 requires verification that no visible corrosion is present at each battery cell terminal and connector or that battery cell terminal and connection resistance is less than or equal to 50.0 E-6 ohm, or less than or equal to 100.0 E-6 ohms at each cell terminal or connector with the calculated average resistance for the battery bank less than or equal to 50.OE-6 ohms. Verification of these values must be performed every 92 days.
  • SR 3.8.4.3 requires that battery cells, cell plates, and racks are verified to show no visual indication of physical damage or abnormal deterioration every 18 months.
  • SR 3.8.4.4 requires removal of all visible corrosion and verification that the battery cell-to-cell and terminal connections are coated with anti-corrosion material every 18 months.
  • SR 3.8.4.5 requires verification, every 18 months, of battery cell connection resistance to be less than or equal to 100.0 E-6 ohms for any single connection and the calculated average resistance for the battery bank is less than or equal to 50.0 E-6 ohms.
  • SR 3.8.4.6 requires verification, every 24 months, that each required battery charger supplies its associated battery at the following rates for greater than 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />s:

- Greater than or equal to 100 amps for a 125 VDC battery at greater than or equal to 127.8 V;

- Greater than or equal to 300 amps for a 250 VDC battery at greater than or equal to 255.6 V;

- Greater than or equal to 200 amps for the 125 VDC Diesel Generator E battery at greater than or equal to 127.8 V.

  • SR 3.8.4.7 requires verification of battery capacity to be adequate to supply, and maintain in operable status, the required emergency loads for the design duty cycle by performance of a battery service test every 24 months. A note is provided which allows performance of the modified performance discharge test in SR 3.8.4.8 in lieu of the service test in SR 3.8.4.7 once per 60 months.

Enclosure to PLA-5891 Page 5 of 14

  • SR 3.8.4.8 requires verification that battery capacity is greater than or equal to 80% of the manufacturer's rating when the battery is subjected to a performance discharge test or a modified performance discharge test. This test must be conducted every 60 months and every 12 months when the battery shows degradation or has reached 85% of expected service life with capacity less than 100% of the manufacturer's rating, and every 24 months when the battery has reached 85% of the expected service life with capacity greater than or equal to 100% of the manufacturer's rating.
  • SR 3.8.4.9 (Unit 2 only) requires the SR's for the Unit 1 specification 3.8.4 to be applicable. When Unit 1 is in Mode 4 or 5 or when moving irradiated fuel assemblies in the secondary containment, the Note to Unit 1 SR 3.8.5.1 is applicable.

TS Section 3.8.6, "Battery Cell Parameters" requires that the battery cell parameters for the Class 1E 250 VDC batteries and the Class 1E 125 VDC batteries shall be within limits when the associated DC electrical power subsystems are required to be operable.

Condition A contains the requirement that if one or more batteries with one or more battery cell parameters are not within Category A or B limits, verification of pilot cell electrolyte level and float voltage to Category C limits must be made within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and verification that battery cell parameters meet Category C limits within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and once per 7 days thereafter, and battery cell parameters must be restored to Category A and B limits within 31 days.

Condition B requires an immediate declaration of battery inoperability if the Required Action and associated completion time of Condition A is not met, or one or more batteries with average electrolyte temperature of the representative cells are not within limits, or one or more batteries with one or more battery cell parameters are not within Category C values.

- Category A Limits: This category defines the normal parameter limits for each designated pilot cell. The electrolyte level must be greater than the minimum level indication mark, and less than or equal to 1/4 inch above the maximum level indication mark. The float voltage must be greater than or equal to 2.13 V. The specific gravity of the pilot cell must be greater than or equal to 1.200.

- Category B Limits: This category defines the normal parameter limits for each connected battery cell. The electrolyte level must be greater than the minimum level indication mark, and less than or equal to 1/4 inch above the maximum level indication mark. The float voltage must be greater than or equal to

Enclosure to PLA-5891 Page 6 of 14 2.13 V. The specific gravity of the measured cell must be greater than or equal to 1.195 and the average specific gravity of all connected cells must be greater than or equal to 1.205.

- Categorv C Limits: This category defines the minimum acceptable parameter limits for each connected cell. The electrolyte level must be above the top of the plates and not overflowing. The float voltage must be greater than 2.07 V.

The specific gravity of the measured cell must be not more than 0.020 below the average of all connected cells and the average specific gravity of all connected cells must be greater than or equal to 1.195.

TS Section 3.8.6 has three SRs to demonstrate operability of the associated batteries. The required SRs are as follows:

  • SR 3.8.6.1 requires that the battery cell parameters be verified to meet Category A limits every 7 days.
  • SR 3.8.6.2 requires that the battery cell parameters be verified to meet Category B limits every 92 days, and once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery discharge of less than 110 V for the 125 VDC batteries and less than 220 V for the 250 VDC batteries, and once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery overcharge that is greater than 150 V for the 125 VDC batteries and greater than 300 V for the 250 VDC batteries.
  • SR 3.8.6.3 requires the verification that the average electrolyte temperature of representative cells is greater than or equal to 60'F every 92 days.

3.3 Description of the Current Systems Unit 1 and Unit 2 have a 125 VDC electrical power system which consists of four separate and independent Class lE subsystems designated as subsystems A, B, C, and D. Each of these 125 VDC electrical power subsystems contains a battery bank of 60 lead calcium cells having a nominal terminal voltage of 125 volts, a 125 VDC battery charger, a 125 VDC load center, and 125 VDC distribution panels to distribute power to connected Class lE and non-Class IE loads. Each 125 VDC electrical power subsystem provides the control power for its associated Class lE AC power load group (designated as A, B, C, D) consisting of 4.16 kV switchgear, 480V load centers, and a standby diesel generator as discussed in FSAR Section 8.3.1. These 125 VDC subsystems also provide DC power to the engineered safety feature (ESF) valve actuation, diesel generator auxiliaries and controls, and plant alarm and indication circuits.

Enclosure to PLA-5891 Page 7 of 14 The "A" and "C" 125 VDC load group subsystems together are considered to be the 125 VDC Division I subsystem. Similarly, the "B" and "D" 125 VDC load group subsystems together are considered to be the 125 VDC Division II subsystem.

During normal plant operation, the Unit 1 125 VDC loads and those 125 VDC loads that are common to both units (common loads) receive power from the Unit 1 125 VDC electrical power subsystems. The common 125 VDC loads can be transferred to the Unit 2 125 VDC electrical power subsystems when necessary by manual operation of transfer switches. Prior to performance of the Unit 1 battery charger inspection and related activities, the common loads, normally connected to each Unit 1 125 VDC electrical power subsystem, will be transferred to a Unit 2 electrical power subsystem. Upon completion of the inspection activities, the common loads will be restored to the Unit 1 125 VDC electrical power subsystem.

A loss of the AC power supply to the battery chargers results in the 125 VDC loads receiving power directly from the Class lE 125 VDC batteries. No operator action is required for this transfer because the battery banks are connected in parallel to the charger and they automatically assume the loads.

Each 125 VDC battery has adequate storage capacity to supply power to the required loads continuously for at least 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> as discussed in the FSAR, Section 8.3.2, "DC Power Systems."

The battery cells for a DC electrical power subsystem are sized such that the required battery capacity exists at 80% of the battery rating. The minimum voltage design limit is 105 V for the 125 VDC batteries.

Each battery charger of the 125 VDC electrical power subsystems has ample power output capacity for the steady state operation of connected loads required during normal operation, while at the same time maintaining its battery bank fully charged. Each battery charger has sufficient capacity to restore the battery bank from the design minimum charge to its fully charged state within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> while supplying normal steady state loads.

The 125 VDC electrical power subsystems are required to be operable to ensure required power is available to shut down the reactor and maintain it in a safe condition after an Anticipated Operational Occurrence (AOO) or a postulated Design Basis Accident (DBA). Loss of any single 125 VDC electrical power subsystem does not prevent the minimum safety functions from being performed.

Enclosure to PLA-5891 Page 8 of 14 Battery cell parameters must remain within acceptable limits to ensure availability of the required DC power to shut down the reactor and maintain it in a safe condition after an AOO or a postulated DBA. Electrolyte limits are conservatively established, thus allowing continued DC electrical system function even with limits not met.

The portable non-Class lE 125 VDC battery charger has the same electrical characteristics as the permanently installed Class lE chargers. It can supply the 125 VDC operating and accident loads in the same manner as the permanent chargers. In the event the portable charger becomes inoperable and 125 VDC bus voltage drops, a 125 VDC Class 1E bus undervoltage alarm is annunciated in the control room.

3.4 Description of the Proposed Changes Existing Condition A is modified to address new Required Actions for the Condition in which a 125 VDC charger is taken out of service for the purposes of the special inspection and related activities. This change is proposed to be in effect until the special inspection and related activities are completed on each of the 125 VDC Class IE battery chargers but no later than 60 days following the issuance of the Unit 1 and Unit 2 amendments. Otherwise, Condition A. 1 will be applicable. The proposed Actions provide a tiered approach that focuses on assuring the battery remains in a fully charged state while allowing time to restore the permanently installed charger to operable status. This assures that there is sufficient battery capacity to perform the intended function. These Actions and completion times have been selected based on PPL's experience gained during inspection and repair of the Unit 2 Class lE 125 VDC battery chargers.

Required Action A.2.1 for Unit 1 and Unit 2 requires that SR 3.8.6.1 be performed within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter. Performance of this SR verifies the battery cell parameters are consistent with TS OPERABLE criteria for the batteries and assures the portable battery charger is maintaining battery cell parameters.

Required Action A.2.2 for Unit 1 and Unit 2 restricts the restoration time for the inoperable electrical power subsystem to 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. This action is applicable since a portable charger will be used to maintain battery cell parameters within LCO 3.8.6 limits. The portable battery charger has sufficient capacity to supply the normal DC loads and accident loads while maintaining the battery capability.

The 36 hour4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> completion time is based on PPL's experience on Unit 2 and includes additional time to perform the transfer of common loads from the Unit 1 125 VDC electric power subsystems to the Unit 2 125 VDC electric power subsystems, plus margin to address any unexpected work encountered during the special inspection

Enclosure to PLA-5891 Page 9 of 14 and related activities. Thirty-six hours provides sufficient time to perform these activities and effect restoration of the permanently installed charger to operable status.

These proposed revisions to TS 3.8.4 establish actions and completion times for an inoperable electrical power subsystem. It is acceptable to implement this change because the capability of the battery will be maintained at all times during the performance of the work by monitoring its parameters per TS 3.8.6 requirements.

Based on the inspection and repair work previously completed on Unit 2, 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> will be sufficient to perform the special inspection and related activities. In the event that the SR 3.8.4 actions could not be met, the TS 3.8.4 Condition B Actions would be implemented. Should the battery parameter LCO 3.8.6 requirements not be met, the requirements of LCO 3.8.6 would be implemented.

4.0 TECHNICAL SAFETY ANALYSIS OF THE PROPOSED CHANGES These changes add specific Actions and increased completion times for an electrical power subsystem that has been taken out of service for performance of special inspection and related activities on a 125 VDC subsystem's battery charger.

The current Technical Specifications limit restoration time for an inoperable battery charger to the same time as for an inoperable battery or a completely de-energized DC distribution subsystem, i.e., 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. The primary role of the battery charger is in support of maintaining operability of its associated battery.

This is accomplished by the charger being of sufficient size to carry the normal steady state DC loads, with sufficient additional capacity to maintain the battery fully charged. The current 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> restoration time is based on Regulatory Guide 1.93, "Availability of Electric Power Sources," and has been applied equally to a minimal reduction in battery charger capacity.

The proposed changes provide an increased restoration time that is of sufficient duration to support the special inspection and related activities. To compensate for the longer time, a portable battery charger will be connected to maintain the battery fully charged and capable of serving all the loads from its distribution panel. The changes are based on the use of a portable non Class lE 125 VDC battery charger, temporarily connected to each of the 125 VDC electrical power subsystems one at a time to perform special inspection and related activities on a permanently installed charger. Double isolation will be provided for the portable charger to ensure that failure of the portable charger does not adversely affect the ability of the Class lE 125 VDC subsystem to perform its function during a LOOP or DBA.

It is acceptable for a non Class IE portable battery charger to be connected to the Class IE 125 VDC electric power subsystem while in LCO 3.8.4 because the battery is maintained fully charged and all connected Class 1E loads remain

Enclosure to PLA-5891 Page 10 of 14 operable. In the event of a Loss of Offsite Power (LOOP) or LOCA/LOOP Design Basis Accident (DBA), the portable battery charger is no longer capable of maintaining the battery fully charged, and all the 125 VDC loads connected to the battery will be supplied by the battery according to its accident load profile.

Availability of the portable charger during a LOOP or DBA is not required because no credit is taken for any of the Class lE 125 VDC battery chargers to be available in the current accident analysis.

This change does not affect the 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> restoration time and actions for a DC electrical power subsystem that cannot meet the battery cell limits specified in TS 3.8.6.

The Category A and B limits reflect nominal fully charged battery parameter values. Significant margin above that required for declaration of an operable battery is provided in these values. These Category A and B values represent appropriate monitoring levels and an appropriate preventive maintenance level of long term battery quality and extended battery life. These values do not reflect the 10 CFR 50.36, "Technical Specifications," criteria for LCOs of "the lowest functional capability or performance levels of equipment required for the safe operation of the facility."

Category C defines the limits for each connected cell. These values, although reduced, provide assurance that sufficient capacity exists to perform the intended function and maintain a margin of safety. When any battery parameter is outside the Category C limits, the assurance of sufficient capacity no longer exists and the battery must be declared inoperable.

The proposed actions associated with an inoperable electrical power subsystem provide a tiered response that focuses on assuring the battery is charged and the electrical power subsystem is restored to operable status. The first required Action A.2.1 is to perform SR 3.8.6.1 within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> to assure the battery is operable.

Maintaining the battery within the TS 3.8.6 limits ensures that the battery is in a high state of readiness and that the battery can fulfill its design basis function.

Required Action A.2.2 for Unit 1 and Unit 2 provides 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> to restore the inoperable electrical power subsystem to operable status. The 36 hour4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> completion time represents a sufficient amount of time to perform the special inspection and related activities. This completion time is based on prior work completed on Unit 2, and includes additional time to transfer the common loads from Unit 1 to Unit 2, restore the common loads to Unit 1, and perform the necessary post maintenance surveillances. This work is expected to be completed within 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> per battery charger, however an additional 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> per charger is requested as margin in the event unanticipated problems are encountered.

Enclosure to PLA-5891 Page 11 of 14 Risk assessments of the entire evolution will be performed to ensure plant configuration risk is fully understood and managed. Actions will be taken to provide increased risk awareness and control, to minimize the duration of the activity, and to minimize the magnitude of the increase in plant risk in accordance with the PPL program and procedures that implement 10 CFR 50.65, "Maintenance Rule."

In summary, this change is deemed acceptable because:

  • The primary role of the battery charger is in support of maintaining operability of the associated battery.
  • The portable battery charger is of sufficient capacity to carry the normal steady state loads while maintaining the battery fully charged, thus it will be capable of maintaining operability of the associated battery.
  • No credit is taken in the LOOP or DBA analyses for any battery chargers.
  • The restoration time of 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> is sufficient to perform the needed special inspection and related activities
  • Risk management will be performed in accordance with PPL procedures.

5.0 REGULATORY SAFETY ANALYSIS 5.1 No Significant Hazards Consideration The Commission has provided standards in 10 CFR 50.92(c) for determining whether a significant hazards consideration exists. A proposed amendment to an operating license for a facility involves no significant hazards consideration if operation of the facility in accordance with the proposed amendment would not (1) involve a significant increase in the probability or consequences of an accident previously evaluated; (2) create the possibility of a new or different kind of accident from any accident previously evaluated; or (3) involve a significant reduction in a margin of safety.

PPL proposes changes to Appendix A, Technical Specifications (TS), of Facility Operating License Nos. NPF-14 and NPF-22 for the Susquehanna Steam Electric Station Units 1 and 2 respectively.

The proposed changes revise TS Section 3.8.4, "DC Sources - Operating," by revising the Condition A Required Actions for Unit 1 and Unit 2 with new actions

Enclosure to PLA-5891 Page 12 of 14 and completion times for a electrical power subsystem that has been taken out of service to perform special inspection and related activities (defined as including any reasonable expected repairs) on the chargers.

In accordance with the criteria set forth in 10 CFR 50.92, PPL has evaluated the proposed TS change and determined it does not represent a significant hazards consideration. The following is provided in support of this conclusion.

1. Does the proposed change involve a significant increase in the probability or consequences of an accident previously evaluated?

No. The proposed changes affect Technical Specification (TS) 3.8.4 for "DC Sources - Operating." The proposed changes add new Required Actions for Unit 1 and Unit 2 to specifically address a Class IE 125 VDC electrical power subsystem that has been taken out of service to perform special inspection and related activities. These changes rely upon the capability of providing the battery charger function by an alternate means (e.g., a 125 volt direct current (VDC) portable battery charger) to justify the proposed completion times. The DC electrical power systems, including associated battery chargers, are not initiators to any accident sequence analyzed in the Final Safety Analysis Report (FSAR). There is no credit taken for operation of any battery chargers in the accident analysis.

Operation in accordance with the proposed TS ensures that the DC electrical power systems are capable of performing functions as described in the FSAR. Therefore the mitigative functions supported by the DC Power Systems will continue to provide the protection assumed by the analysis.

Therefore, the proposed changes do not involve a significant increase in the probability or consequences of an accident previously evaluated.

2. Does the proposed change create the possibility of a new or different kind of accident from any accident previously evaluated?

No. The proposed changes involve revising TS 3.8.4 "DC Sources -

Operating," for the DC electrical power systems. These changes rely upon the capability of providing the battery charger function by an alternate means to justify the proposed completion times when a normal battery charger is taken out of service to perform special inspections and related activities. The DC electrical power systems, which include the associated battery chargers, are not initiators to any accident sequence nor are the chargers credited in any accident analysis in the FSAR. Rather, the DC electrical power systems are used to supply equipment used to mitigate an

Enclosure to PLA-5891 Page 13 of 14 accident. These mitigative functions, supported by the DC electrical power systems are not affected by these changes and they will continue to provide the protection assumed by the safety analysis described in the FSAR. While connected, the portable battery charger will be electrically isolated from the Class 1E 125 VDC subsystem. Therefore, there are no new types of failures or new or different kinds of accidents or transients that could be created by these changes. The proposed changes do not create the possibility of a new or different kind of accident from any accident previously evaluated.

3. Does the proposed change involve a significant reduction in a margin of safety?

No. The margin of safety is established through equipment design, operating parameters, and the setpoints at which automatic actions are initiated. The proposed changes do not adversely affect operation of any plant equipment. These changes do not result in a change to the setpoints at which protective actions are initiated. Sufficient DC electrical system capacity is ensured to support operation of mitigation equipment. The equipment fed by the DC electrical sources will continue to be provided adequate power to safety related loads in accordance with the safety analysis in which operation of the chargers is not credited in a LOOP or DBA. Therefore, the proposed changes do not involve a significant reduction in a margin of safety.

5.2 Applicable Regulatory Requirements/Criteria SSES FSAR Section 8.3.2.2.1, Compliance with General Design Criteria, Regulatory Guides, and IEEE Standards, provides detailed discussion of SSES compliance with the applicable regulatory requirements and guidance. The proposed TS amendment does not alter the design or function of any operable DC electrical power subsystem, it does not result in any change in the qualification of any operable component, and it does not result in the reclassification of any subsystem's status in the areas of shared, safety related, independent, redundant, and physical or electrical separation.

This amendment results in the ability for SSES to take a Unit 1 or Unit 2 125 VDC electrical power subsystem out of service for up to 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> provided the battery capabilities are maintained per TS 3.8.6. All existing SSES commitments to IEEE Standard 450, "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications," reflect commitment to the 1995 edition of IEEE Standard 450 and are unaffected by this change.

Enclosure to PLA-5891 Page 14 of 14

6.0 ENVIRONMENTAL CONSIDERATION

10 CFR 51.22(c)(9) identifies certain licensing and regulatory actions, which are eligible for categorical exclusion from the requirement to perform an environmental assessment. A proposed amendment to an operating license for a facility does not require an environmental assessment if operation of the facility in accordance with the proposed amendment would not (1) involve a significant hazards consideration; (2) result in a significant change in the types or significant increase in the amounts of any effluents that may be released offsite; or (3) result in a significant increase in individual or cumulative occupational radiation exposure. PPL has evaluated the proposed change and has determined that the proposed change meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Accordingly, pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment needs to be prepared in connection with issuance of the amendment. This determination, using the above criteria, is:

1. As demonstrated in the No Significant Hazards Consideration Evaluation, the proposed amendment does not involve a significant hazards consideration.
2. There is no significant change in the types or significant increase in the amounts of any effluents that may be released offsite. The proposed change does not involve any physical alteration of the plant (no new or different type of equipment will be permanently installed) or change in methods governing normal plant operation.
3. There is no significant increase in individual or cumulative occupational radiation exposure. The proposed change does not involve any physical alteration of the plant (no new or different type of equipment will be permanently installed) or change in methods governing normal plant operation.

Attachment 1 to PLA-5891 Proposed Technical Specification Changes (Markups)

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS)

  • 1.0 USE AND APPLICATION ................ 1.1-1

'1.1 Definitions ................ 1.1-1 1.2 Logical Connectors ................ 1.2-1 1.3 Completion Times ................ 1.3-1 1.4 Frequency . 1.4-1 2.0 SAFETY LIMITS (SLs) .TS/2.O-1 2.1 SLs....T......1 TS/2.01 2.2 SL Violations .................................................................................. TS/2.0-1 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY .3.0-1 3.0 SURVEILLANCE REQUIREMENT (SR) APPLICABILITY .TS /3.0-4 3.1 REACTIVITY CONTROL SYSTEMS .3.1-1 3.1.1 Shutdown Margin (SDM) . 3.1-1 3.1.2 ReactivityAnomalies .3.1-5 3.1.3 Control Rod OPERABILITY .3.1-7 3.1.4 Control Rod Scram Times . 3.1-12 3.1.5 Control Rod Scram Accumulators . 3.1-15 3.1.6 Rod Pattern Control .3.1-18 3.1.7 Standby Uquid Control (SLC) System .3.1-20 3.1.8 Scram Discharge Volume (SDV) Vent and Drain Valves .. 3.1-25 3.2 POWER DISTRIBUTION LIMITS .. 3.2-1 3.2.1 Average Planar Linear Heat Generation Rate (APLHGR) ................. 3.2-1 3.2.2 Minimum Critical Power Ratio (MCPR) ............................................ 3.2-3 3.2.3 Linear Heat Generatibon Rate (LHGR) ............................................ 3.2-5 3.2.4 Average Power Range Monitor (APRM) Gain and Setpoints ............. 3.2-7 3.3 INSTRUMENTATION ............................................. 3.3-1 3.3.1.1 Reactor Protection System (RPS) Instrumentation:........................... 3.3-1 3.3.1.2 Source Range Monitor (SRM) Instrumentation .................................. 3.3-10 3.3.1.3 Oscillation Power Range Monitor (OPRM)

Instrumentation ......................... TS13.3-15a 3.3.2.1 Control Rod Block Instrumentation .3.3-16 3.3.2.2 Feedwater - Main Turbine High Water Level Trip Instrumentation .. 3.3-21 3.3.3.1 Post Accident Monitoring (PAM) Instrumentation .. 3.3-23 3.3.3.2 Remote Shutdown System .. 3.3-26 3.3.4.1 End of Cycle Recirculation Pump Trip (EOC-RPT)

Instrumentation .3.3-29 3.3.4.2 Anticipated Transient Without Scram Recirculation Pump Trip (ATWS-RPT) Instrumentation ....................................... 3.3-33 3.3.5.1 Emergency Core Cooling System (ECCS) Instrumentation ...... ........

3.3-36 3.3.5.2 Reactor Core Isolation Cooling (RCIC) System Instrumentation ..... 3.3-48 3.3.6.1 Primary Containment Isolation Instrumentation ..... TS /3.3-52 3.3.6.2 Secondary Containment Isolation Instrumentation .. .... 3.3-63 P (continued)

SUSQUEHANNA - UNIT I TS I TOC - 1 Amendment 14, 2,fi

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS) 3.3.7.1 Control Room Emergency Outside Air Supply (CREOAS)

System Instrumentation...............................................................3.3-67 3.3 INSTRUMENTATION (continued) 3.3.8.1 Loss of Power (LOP) Instrumentation .3.3-72 3.3.82 Reactor Protection System (RPS) Electric Power Monitoring.........................................................................................3.-75 3.4 REACTOR COOLANT SYSTEM (RCS) . TS/3.4-1 3.4.1 Recirculation Loops Operating .TS/3.4-1 3.4.2 Jet Pumps .3.4-6 3.4.3 Safety/Relief Valves (S/RVs) .3.4-8 3.4.4 RCS Operational LEAKAGE. 3.4-10 3.4.5 RCS Pressure Isolation Valve (PIV) Leakage .3.4-12 3.4.6 RCS Leakage Detection Instrumentation .......................................... 3.4-14 3.4.7 RCS SpecificActivity..........................................................................3.17 3.4.8 Residual Heat Removal (RHR) Shutdown Cooling System - Hot Shutdown..............................................................3.4-19 3.4.9 Residual Heat Removal (RHR) Shutdown Cooling System - Cold Shutdown............................................................3.4-22 3.4.10 RCS Pressure and Temperature (PIT) Limits .3.4-24 3.4.11 Reactor Steam Dome Pressure .3.4-31 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM .3.5-1 3.5.1 ECCS - Operating ......................... 3.5-1 3.5.2 ECCS - Shutdown . 3.5.8 3.5.3 RCIC System . 3.5-12 3.6 CONTAINMENT SYSTEMS...................................................................3.6-1 3.6.1.1 Primary Containment. 3.6-1 3.6.1.2 Primary Containment Air Lock . 3.6-4 3.6.1.3 Primary Containment Isolation Valves (PCIVs) .. 6-.......................

/3.6-8 3.6.1.4 Containment Pressure . 3.6-17 3.6.1.5 Drywell Air Temperature .3.6-18 3.6.1.6 Suppression-Chamber-to-Drywell Vacuum Breakers. 3.6-19 3.6.2.1 Suppression Pool Average Temperature..........................................3.6-22 3.6.2.2 Suppression Pool Water Level . 3.6-25 3.6.2.3 Residual Heat Removal (RHR) Suppression Pool Cooling . TS /3.6-26 3.6.2.4 Residual Heat Removal (RHR) Suppression Pool Spray .3.6-28 3.6.3.1 Primary Containment Hydrogen Recombiners .................................. 3.6-30 3.6.3.2 Drywell Air Flow System .3.6-32 3.6.3.3 Primary Containment Oxygen Concentration ......................... 3.34 3.6.4.1 Secondary Containment.........................................................3..........6-35 3.6.4.2 Secondary Containment Isolation Valves (SCIVs).;.......;.................... 3.6-38 3.6.4.3 Standby Gas Treatment (SGT) System............................................3.6-42 (continued)

SUSQUEHANNA - UNIT 1 . TS/ TOC- 2 Amendment I K, W

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS) 3.7 PLANT SYSTEMS ................................  ; TS13.7-1 3.7.1 Residual Heat Removal Service Water (RHRSWi System and the Ultimate Heat Sink (UHS) .... TS13.7-1 3.7.2 Emergency Service Water (ESW) System .... 3.7-4 3.7.3 Control Room Emergency Outside Air Supply (CREOAS) System .............. ...... TS/3.7-6 3.7.4 Control Room Floor Cooling System ..... 3.7-10 3.7.5 Main Condenser Offgas ..... 3.7-13 3.7.6 Main Turbine Bypass System ..... TS/3.7-15 3.7.7 Spent Fuel Storage Pool Water Level ..... 3.7-17 3.8 ELECTRICAL POWER SYSTEMS ........ 3.8-1 3.8.1 AC Sources - Operating ........................................  :...... 3.8-1 3.8.2 AC Sources - Shutdown ...................................... 3.8-17 3.8.3 Diesel Fuel Oil, Lube Oil, and Starting Air ..............................

3.8.4 DC Sources - Operating .. . .................... ,.8-23 3.8.5 DC Sources - Shutdown............................................................ 9 3.8.6 Battery Cell Parameters ......................... 3.8- 2 3.8.7 Distribution Systems - Operating ....................... 3.8-37 3.8.8 Distribution Systems - Shutdown......................................................3.8-41 3.9 REFUELING OPERATIONS ................... ; 3.9-1 3.9.1 Refueling Equipment Interlocks .3.9-1 3.9.2 Refuel Position One-Rod-Out Interlock ............................ ;.:.. 3.9-3 3.9.3 Control Rod Position .................................... 3.9-5 3.9.4 Control Rod Position Indication. 3.9-3.9.5 Control Rod OPERABILITY- Refueling .3.9-8 3.9.6 Reactor Pressure Vessel (RPV) Water Level. 3.9-9 3.9.7 Residual Heat Removal (RHR) - High Water Level .3.9-10 3.9.8 Residual Heat Removal (RHR) - Low Water Level;.. 3.9-13 3.10 SPECIAL OPERATIONS .... 3.10-1 3.10.1 Inservice Leak and Hydrostatic Testing Operation ............................ 3.10-1 3.102 Reactor Mode Switch Interlock Testing. 3.1-4 3.10.3 Single Control Rod Withdrawal - Hot Shutdown . 3.10-6 3.10.4 Single Control Rod Withdrawal - Cold Shutdown. 3.10-9 3.10.5 Single Control Rod Drive (CRD) Removal - Refueling .3.10-13 3.10.6 Multiple Control Rod Withdrawal - Refueling .................................... 10-16 3.10.7 Control Rod Testing-Operating .3.10-18 3.10.8 SHUTDOWN MARGIN (SDM) Test- Refueling .3.10-20 4.0 DESIGN FEATURES. ....................................................................... 4.........4.-1 4.1 Site Location ........................................................... :.;.-; .......................4.-1 4.2 Reactor Core . 4.0-1 4.3 Fuel Storage . 4.0-1 (continued)

SUSQUEHANNA- UNIT 1 TS/TOC-3 Amendment954,2M

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS) 5.0 ADMINISTRATIVE CONTROLS ......................  :. ,

5.0-1 5.1 Responsibility .5.0-1 5.2 Organization .5.0-2 5.3 Unit Staff Qualifications ..................................................................... 5.0-5 5.4 Procedures .. 06

5. Programs and Manuals...........................................................5............ .5.0-7 5.6 Reporting Requirements......................................................................5.0-19 5.7 High Radiation Area .. 5.0-27 TS1 TOC 1111004 SUSQUEHANNA- UNIT I TS/TOC-4 Amendment IP, /e

PPL Rev. 0 DC Sources-Operating 3.8.4 3.8 ELECTRICAL POWER SYSTEMS 3.8.4 DC Sources-Operating LCO 3.8.4 The DC electrical power subsystems in Table 3.8.4-1 shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION J COMPLETION TIME A. -----------NOTE------------ A.1 Restore Unit 1 DC electrical 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Not applicable to DG power subsystem to E DC electrical power OPERABLE status.

subsystem.

One Unit 1 DC I electrical power subsystem inoperable.

.  ? No. .

rm OI I

Or4"b\Ci pWAt 2Scrr >

SUA - U 1 -m Aten.

-a ~ )

3.8S-23 wt1t C Lbc e 2hcv eerco oCf 9f., SI~ +JeCri -

SUSQUEHANNA -UNIT 1 Amendment,;

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS) 3.3 INSTRUMENTATION (continued) 3.3.8.1 Loss of Power (LOP) Instrumentation ........ 3.3-72 3.3.8.2 Reactor Protection System (RPS) Electric Power Monitoring .................................. 3.3-75 3.4 REACTOR COOLANT SYSTEM (RCS) .................................... TS13.4-1 3.4.1 Recirculation Loops Operating ........... ....................... TS13.4-1 3.4.2 Jet Pumps.........................................................................................3.4-6 3.4.3 Safety/Relief Valves (S/RVs) .................................. 3.4-8 3.4.4 RCS Operational LEAKAGE .................................. 3.4-10 3.4.5 RCS Pressure Isolation Valve (PIV) Leakage .................................. 3.4-12 3.4.6 RCS Leakage Detection Instrumentation .................................. 3.4-14 3.4.7 RCS SpecificActivity..........................................................................3.17 3.4.8 Residual Heat Removal (RHR) Shutdown Cooling System - Hot Shutdown..............................................................3.4-19 3.4.9 Residual Heat Removal (RHR) Shutdown Cooling System - Cold Shutdown ............................... 3.4-22 3.4.10 ROS Pressure and Temperature (PIT) Limits ............................... 3.4-24 3.4.11 Reactor Steam Dome Pressure ............................... 3.4-31 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM . .........................

3.5-1 3.5.1 ECCS - Operating . ........... 3.5-1 3.5.2 ECCS - Shutdown ............ 3.5-8 3.5.3 RCIC System .......................  ; 3.5-12 3.6 CONTAINMENT SYSTEMS ....................... 3.6-1 3.6.1.1 Primary Containment ....................... 3.6-1 3.6.1.2 Primary Containment Air Lock .................... 3.6-4 3.6.1.3 Primary Containment Isolation Valves (PCIVs) ........................... TS /3.6-8 3.6.1.4 Containment Pressure .................  : 3.6-17 3.6.1.5 Drywell Air Temperature ................ 3.6-18 3.6.1.6 Suppression-Chamber-to-Drywell Vacuum Breakers ........................ 3.6-19 3.6.2.1 Suppression Pool Average Temperature...........................................3.6-22 3.6.2.2 Suppression Pool Water Level ......................................... 3.6-25 3.6.2.3 Residual Heat Removal (RHR) Suppression Pool Cooling .......... TS/3.6-26 3.6.2.4 Residual Heat Removal (RHR) Suppression Pool Spray .................. :3.6-28 3.6.3.1 Primary Containment Hydrogen Recombiners .................................. 3.6-30 3.6.3.2 Drywell Air Flow System....................................................................3.6-32 3.6.3.3 Primary Containment Oxygen Concentration .................................... 3.6-34 3.6.4.1 Secondary Containment ......................................... 3.6-35 3.6.4.2 Secondary Containment Isolation Valves (SCIVs) ............................... 3.6-38 3.6.4.3 Standby Gas Treatment (SGT) System...........................................3.6-42 (continued)

TS/TOC -2 Amendment 11, 18, L9' SUSQUEHANNA- UNIT 2 SUSQUEHANNA-UNIT 2 TS/TOC - 2 Amendment 11, 1%8,Jt

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS) 1.0 USE AND APPLICATION ................ 1.1-1 1.1 Definitions .......  :: 1.1-1 1.2 Logical Connectors ................ 1.2-1 1.3 Completion Times................................................................................31.1 1.4 Frequency............................................................................................41.1 2.0 SAFETY LIMITS (SLs)............................................................................ 1TS/2.01 2.1 SLs ................ TS2.01 2.2 SL Violations.................................................................................. TS 12.0-1 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY .............. 3.0-1 3.0 SURVEILLANCE REQUIREMENT (SR) APPLICABILITY ............ .......... TSI3.0-4 3.1 REACTIVITY CONTROL SYSTEMS .............................................. 3.1-1 3.1.1 Shutdown Margin (SDM) .............................................. 3.1-1 3.1.2 Reactivity Anomalies .............................................. 3.1-5 3.1.3 Control Rod OPERABILITY .............................................. 3.1-7 3.1.4 Control Rod Scram Times .............................................. 3.1-12 3.1.5 Control Rod Scram Accumulators ...................................................... 3.1-15 3.1.6 Rod Pattern Control .............................................. 3.1-18 3.1.7 Standby Liquid Control (SLC) System .............................................. 3.1-20 3.1.8 Scram Discharge Volume (SDV) Vent and Drain Valves ................... 3.1-25 3.2 POWER DISTRIBUTION LIMITS ............................................... ;...... 3.2-1 3.2.1 Average Planar Linear Heat Generation Rate (APLHGR) ........ . ........ 3.2-1 3.2.2 Minimum Critical Power Ratio (MCPR) ............................................ 3.2-3 3.2.3 Linear Heat Generation Rate (LHGR) ............................................ 3.2-5 3.2.4 Average Power Range Monitor (APRM) Gain and Setpoints ............. 3.2-7 3.3 INSTRUMENTATION . . . 3.3-1 3.3.1.1 Reactor Protection System (RPS) Instrumentation .3.3-1 3.3.1.2 Source Range Monitor (SRM) Instrumentation .3.3-10 3.3.1.3 Oscillation Power Range Monitor (OPRM)

Instrumentation . TS/3.3-15a 3.3.2.1 Control Rod Block Instrumentation . 3.3-16 3.3.2.2 Feedwater - Main Turbine High Water Level Trip Instrumentation ......... 3.3-21 3.3.3.1 Post Accident Monitoring (PAM) Instrumentation .............................. 3.3-23 3.3.3.2 Remote Shutdown System ........................................ 3.3-27 3.3.4.1 End of Cycle Recirculation Pump Trip (EOC-RPT)

Instrumentation ... 3.3-30 3.3.4.2 Anticipated Transient Without Scram Recirculation Pump Trip (ATWS-RPT) Instrumentation .......................... ;........... 3.3-34 3.3.5.1 Emergency Core Cooling System (ECCS) Instrumentation .......... TS/3.3-37 3.3.5.2 Reactor Core Isolation Cooling (RCIC) System Instrumentation .................................. 3.3-48 3.3.6.1 Primary Containment Isolation Instrumentation ............................. TS13.3-52 3.3.62 Secondary Containment Isolation Instrumentation ............................ 3.3-63 3.3.7.1 Control Room Emergency Outside Air Supply (CREOAS)

System Instrumentation..................................................................3.3-67 (continued)

SUSQUEHANNA - UNIT 2 TS/TOC -1 Amendment 1q1, 19, 196 1W

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS) 3.7 PLANT SYSTEMS ................................ TS/3.7-1 3.7.1 Residual Heat Removal Service Water (RHRSW) System and the Ultimate Heat Sink (UHS) ............................. TSI3.7-1 3.7.2 Emergency Service Water (ESW) System ............................. 3.7-4 3.7.3 Control Room Emergency Outside Air Supply (CREOAS) System ................................ - TS/3.7-6 3.7.4 Control Room Floor Cooling System ............................... 3.7-10 3.7.5 Main Condenser Offgas ............................... 3.7-13 3.7.6 Main Turbine Bypass System ............................... TS/3.7-15 3.7.7 Spent Fuel Storage Pool Water Level ............................... 3.7-17 3.8 ELECTRICAL POWER SYSTEMS ............................... 3.8-1 3.8.1 AC Sources - Operating ................................ 3.81 3.8.2 AC Sources - Shutdown ................................  ; 3.8-19 3.8.3 Diesel Fuel Oil, Lube Oil, and Starting Air.................................J2 3.8.4 DC Sources - Operating .........................................................

/3.8-6J 3.8.5 DC Sources - Shutdown...........................................................

3.8.6 Battery Cell Parameters ............................................. 3.8-39 3.8.7 Distribution Systems - Operating ...................... 3.8-44 3.8.8 Distribution Systems - Shutdown ....................... 3.8-50 3.9 REFUELING OPERATIONS.................................................................3.9-1 3.9.1 Refueling Equipment Interlocks ........................ 3.9-1 3.9.2 Refuel Position One-Rod-Out Interlock ............................................ 3.9-3 3.9.3 Control Rod Position ...................................... 3.9-5 3.9.4 Control Rod Position Indication .................................... 3.9-6 3.9.5 Control Rod OPERABILITY - Refueling .................................... 3.9-8 3.9.6 Reactor Pressure Vessel (RPV) Water Level .................................... 3.9-9 3.9.7 Residual Heat Removal (RHR) - High Water Level ............................ 3.9-10 3.9.8 Residual Heat Removal (RHR) - Low Water Level ........................... 3.9-13 3.10 SPECIAL OPERATIONS ............................................ 3.10-1 3.10.1 Inservice Leak and Hydrostatic Testing Operation ............................ 3.10-1 3.102 Reactor Mode Switch Interlock Testing ............................................. 3.10-4 3.10.3 Single Control Rod Withdrawal - Hot Shutdown ............................... 3.10-6 3.10A Single Control Rod Withdrawal - Cold Shutdown .............................. 3.10-9 3.10.5 Single Control Rod Drive (CRD) Removal - Refueling ......................3.1D-13 3.10.6 Multiple Control Rod Withdrawal - Refueling ..................................... 3.10-16 3.10.7 Control Rod Testing - Operating ............................................ 3.10-18 3.10.8 SHUTDOWN MARGIN (SDM) Test- Refueling ................................ 3.10-20 4.0 DESIGN FEATURES ............................................ TS/4.O1 4.1 Site Location..............................................................................:......TS/4.0-1 4.2 Reactor Core . ........ TS/4.0-1 4.3 Fuel Storage ........ TS/4.0-1 (continued)

TSITOC-3 Amendment 11, 1, 192 SUSQUEHANNA -

UNIT 22 SUSQUEI-IANNA - UNIT  ! . TS/TOC - 3 Amendment 1#1, 17at, Tzr

TABLE OF CONTENTS (TECHNICAL SPECIFICATIONS) 5.0 ADMINISTRATIVE CONTROLS ..................... 5.0-1 5.1 Responsibility....................................................................................... 05. 1 5.2 Organization ..................... 5.0-2 5.3 Unit Staff Qualifications........................................................................ 5.0-5 5.4 Procedures ............... 5.0-6 5.5 Programs and Manuals ....... 5.0-7 5.6 Reporting Requirements ................ 5.-19 5.7 High Radiation Area ............ TS/5.0-24 I TS2TOC 1 1110i04 SUSQUEHANNA-UNIT 2 TS/TOC - 4 Amendment 1q4, 10B. Xg

PPL Rev./f DC Sources-Operating 3.8.4 3.8 ELECTRICAL POWER SYSTEMS 3.8.4 DC Sources-Operating LCO 3.8.4 The DC electrical power subsystems in Table 3.8.4-1 shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. ------------ NOTE-------------- A.1 Restore Unit 2 DC 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Not applicable to DG E electrical power DC electrical power subsystem to subsystem OPERABLE status.

One Unit 2 DC electrical power subsystem inoperable.

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Attachment 2 to PLA-5891 Proposed Technical Specification Bases Changes (Markups for Information Only)

PPL Rev./e DC Sources-Operating B 3.8.4 BASES APPLICABILITY b. Adequate core cooling is provided, and containment integrity and (continued) other vital functions are maintained in the event of a postulated DBA.

The DC electrical power requirements for MODES 4 and 5 are addressed in the Bases for LCO 3.8.5, "DC Sources-Shutdown.'

ACTIONS A.1 Condition A represents one subsystem with a loss of ability to completely respond to an event, and a potential loss of ability to remain energized during normal operation. It is therefore imperative that the operators attention focus on stabilizing the unit, minimizing the potential for complete loss of DC power to the affected division. The 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> limit is consistent with the allowed time for an inoperable DC Distribution System division.

If one of the required DC electrical power subsystems is inoperable (e.g.,

inoperable battery, inoperable battery charger(s), or inoperable battery charger and associated inoperable battery), the remaining DC electrical power subsystems have the capacity to support a safe shutdown and to mitigate an accident condition. Since a subsequent worst case single failure could, however, result in the loss of minimum necessary DC electrical subsystems to mitigate a worst case accident, continued power operation should not exceed 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. The 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Completion Time is based on Regulatory Guide 1.93 (Ref. 7) and reflects a reasonable time to assess unit status as a function of the inoperable DC electrical power subsystem and, if the DC electrical power subsystem is not restored to OPERABLE status, to prepare to effect an orderly and safe unit shutdown.

Condition A is modified by a Note that states that Condition A is not applicable to the DG E DC electrical power subsystem. Condition C or D is applicable to an inoperable DG E DC electrical power subsystem.

(continued)

SUSQUEHANNA - UNIT 1 TS / B 3.8-57 Revision 1

UNIT 1 TS BASES INSERT A.2.1 and A2.2 In order to inspect and repair the internal wiring of the Unit 1 125 VDC chargers to provide absolute assurance that the condition that resulted in the Unit 2 forced shutdown on April 10, 2005 does not exist in any of the Unit 1 125 VDC chargers, a one charger at a time use of these ACTIONS is allowed.

While the charger is out of service, the ACTIONS provide a tiered approach that focuses on assuring the battery remains in a charged state while allowing a reasonable time to restore the qualified charger to OPERABLE. This assures that there is sufficient battery capacity to perform the intended function. These actions and completion times have been selected based on PPL's experience gained during inspection and repair of the Unit 2 Class lE 125 VDC battery chargers.

Required Action A.2.1 requires that SR 3.8.6.1 be performed within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter. Performance of this SR verifies the battery cell parameters are consistent with the TS criteria of LCO 3.8.6 for the batteries and assures the alternate charging means is maintaining battery cell parameters.

Required Action A.2.2 restricts the restoration time for the inoperable charger to 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. This action is applicable since a portable non-Class lE battery charger will be used to maintain battery cell parameters. The portable battery charger has the same capacity to supply the normal DC loads and accident loads while maintaining the battery capability as the permanently installed charger. The 36-hour completion time is enough time to maintain 100% power operation and perform the internal inspection and related activities (defined as including any reasonably expected repairs), and restore the affected permanently installed charger to operable status. This completion time is based on work completed on Unit 2, and includes additional time to transfer Common Loads and perform post maintenance surveillances. This work is expected to be completed within 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> per charger, however an additional 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> per charger is provided as margin in the event unanticipated problems are encountered.

Required Action A.2 is modified by a Note. The Note ensures these A.2 Actions are only applied for the specified purposes and within the time period specified.

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PPL Rev,4 DC Sources-Operating B 3.8.4 BASES APPLICABILITY b. Adequate core cooling is provided, and containment integrity and (continued) other vital functions are maintained in the event of a postulated DBA.

The DC electrical power requirements for MODES 4 and 5 are addressed in the Bases for LCO 3.8.5, 'DC Sources-Shutdown.'

ACTIONS A.1 Condition A represents one subsystem with a loss of ability to completely respond to an event, and a potential loss of ability to remain energized during normal operation. It is therefore imperative that the operator's attention focus on stabilizing the unit, minimizing the potential for complete loss of DC power to the affected division. The 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> limit is consistent with the allowed time for an inoperable DC Distribution System division.

If one of the required DC electrical power subsystems is inoperable (e.g.,

inoperable battery, inoperable battery charger(s), or inoperable battery charger and associated inoperable battery), the remaining DC electrical power subsystems have the capacity to support a safe shutdown and to mitigate an accident condition. Since a subsequent worst case single failure could, however, result in the loss of minimum necessary DC electrical subsystems to mitigate a worst case accident, continued power operation should not exceed 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. The 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Completion Time is based on Regulatory Guide 1.93 (Ref. 7) and reflects a reasonable time to assess unit status as a function of the inoperable DC electrical power subsystem and, if the DC electrical power subsystem is not restored to OPERABLE status, to prepare to effect an orderly and safe unit shutdown.

Condition A is modified by a Note that states that Condition A is not applicable to the DG E DC electrical power subsystem.

Condition C or D is applicable to an inoperable DG E DC electrical power subsystem.

(continued)

SUSQUEHANNA - UNIT 2 TS / B 3.8-59 Revision 1

UNIT 2 TS BASES INSERT A.2.1 and A2.2 As a contingency, should it be necessary to perform further work on the Unit 2 125 VDC chargers as a result of the ongoing cause evaluation from the April 10, 2005 Unit 2 125 VDC battery charger failure and inspection and related activities performed on the Unit 1 125 VDC battery chargers, a one charger at a time use of these ACTIONS is allowed.

While the charger is out of service, the ACTIONS provide a tiered approach that focus on assuring the battery remains in a charged state while allowing a reasonable time to restore the qualified charger to OPERABLE. This assures that there is sufficient battery capacity to perform the intended function. These actions and completion times have been selected based on PPL's experience gained during inspection and repair of the Unit 2 Class lE 125 VDC battery chargers.

Required Action A.2.1 requires that SR 3.8.6.1 be performed within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter. Performance of this SR verifies the battery cell parameters are consistent with the TS criteria of LCO 3.8.6 for the batteries and assures the alternate charging means is maintaining battery cell parameters.

Required Action A.2.2 restricts the restoration time for the inoperable charger to 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. This action is applicable since a portable non-Class lE battery charger will be used to maintain battery cell parameters. The portable battery charger has the same capacity to supply the normal DC loads and accident loads while maintaining the battery capability as the permanently installed charger. The 36-hour completion time is enough time to maintain 100% power operation and perform the internal inspection and related activities (defined as including any reasonably expected repairs), and restore the affected permanently installed charger to operable status. This completion time is based on work completed on Unit 2 and is expected to be completed within 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> per charger, however an additional 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> per charger is provided as margin in the event unanticipated problems are encountered.

Required Action A.2 is modified by a Note. The Note ensures these A.2 Actions are only applied for the specified purposes and within the time period specified.

g:\goadmin\Jic\pla\5800\5891 Unit2TSBasesInsert.doc

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