ML090850341

Technical Specification Bases Changes

ML090850341
Person / Time
Site:	Catawba
Issue date:	03/23/2009
From:	Morris J R Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML090850341 (11)

Text

ý- .ý' -I ý.P Duke JAMES R. MORRIS, VICE PRESIDENT krEnergy.

Duke Energy Carolinas, LLC Carolinas Catawba Nuclear Station 4800 Concord Road / CN01 VP York, SC 29745 803-701-4251 803-701-3221 fax March 23, 2009 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001

Subject:

Duke Energy Carolinas, LLC Catawba Nuclear Station, Units 1 and 2 Docket Nos. 50-413 and 50-414 Technical Specification Bases Changes Pursuant to 10CFR 50.4, please find attached changes to the Catawba Nuclear Station Technical Specification Bases. These Bases changes were made according to the provisions of 10CFR 50.59.Any questions regarding this information should be directed to L. J. Rudy, Regulatory Compliance, at (803)701-3084.

I certify that I am a duly authorized officer of Duke Energy Corporation and that the information contained herein accurately represents changes made to the Technical Specification Bases since the previous submittal.

James R. Morris Attachment A4o(www. duke-energy.

com U.S. Nuclear Regulatory Commission March 23, 2009 Page 2 xc: Luis Reyes U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, GA 30303 J. H. Thompson, NRR Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 8 G9A 11555 Rockville Pike Rockville, MD 20852-2738 A.T. Sabisch Senior Resident Inspector Catawba Nuclear Station U.S. Nuclear Regulatory Commission March 23, 2009 Page 3 bxc: w/o attachment NCMPA-1 NCEMC PMPA w/attachment Electronic Licensing Library EC050 RGC File CN01RC Master File CN-801.01 CN04DM SDuke DUKE ENERGY CAROLINAS, LLC Catawba Nuclear Station rbEnergy 4800 Concord Road Carolinas York, SC 29745 March 18, 2009 Re: Catawba Nuclear Station Technical Specifications Bases Please replace the corresponding pages in your copy of the Catawba Technical Specifications Manual as follows: REMOVE THESE PAGES INSERT THESE PAGES LIST OF EFFECTIVE PAGES Page 31 Page 31 TAB 3.8.3 B 3.8.3-5 thru B 3.8.3-8 B 3.8.3-5 thru B 3.8.3-8 TAB 3.8.4 B 3.8.4-7 thru B 3.8.4-8 B 3.8.4-7 thru B 3.8.4-8 If you have any questions concerning the contents of thisTechnical Specification update, contact Betty Aldridge at (803)701-3758., Randy Hart Manager, Regulatory Compliance www. duke-energy, com Page Number B 3.8.1-25 B 3.8.1-26 B 3.8.1-27 B 3.8.2-1 B 3.8.2-2 B 3.8.2-3 B 3.8.2-4 B 3.8.2-5 B 3.8.2-6 B 3.8.3-1 B 3.8.3-2 B 3.8.3-3 B 3.8.3-4 B 3.8.3-5 B 3.8.3-6 B 3.8.3-7 B 3.8.3-8 B 3.8.4-1 B 3.8.4-2.B 3.8.4-3 B 3.8.4-4 B 3.8.4-5 B 3.8.4-6 B 3.8.4-7 B 3.8.4-8 B 3.8.4-9 B 3.8.4-10 B 3.8.5-1 B 3.8.5-2 B 3.8.5-3 B 3.8.6-1 B 3.8.6-2 Amendment Revision 0 Revision 0 Revision 2 Revision 0 Revision 0 Revision 0 Revision 1 Revision 2 Revision 1 Revision 1 Revision 0 Revision 1 Revision 0 Revision 1 Revision 2 Revision 1 Revision 3.Revision 0 Revision 1 Revision 0 Revision 1 Revision 3 Revision 4 Revision 7 Revision 7 Revision 6 Revision 1 Revision 0 Revision 2 Revision 1 Revision 2 Revision 1 Revision Date 9/30/98 9/30/98 6/25/07 9/30/98 9/30/98 9/30/98 5/10/05 5/10/05 5/10/05 1/15/99 9/30/98 1/15/99 9/30/98 1/15/99 3/11/09 7/10/03 3/11/09 9/30/98 2/26/99 9/30/98 4/27/99 4/27/05 4/27/05 4/27/05 3/11/09 10/06/05 3/29/05 9/30/98 7/29/03 7/29/03 4/27/05 4/27/05 Catawba Units 1 and 2 Page 31 3/11/09 Diesel Fuel Oil, Lube Oil and Starting Air B 3.8.3 BASES ACTIONS (continued) for reasons other than addressed by Conditions A through E, the associated DG may be incapable of performing its intended function and must be immediately declared inoperable.

SURVEILLANCE SR 3.8.3.1 REQUIREMENTS This SR provides verification that there is an adequate inventory of fuel oil in the storage tanks to support each DG's operation for 7 days at full load. The 7 day period is sufficient time to place the unit in a safe shutdown condition and to bring in replenishment fuel from an offsite location.The 31 day Frequency is adequate to ensure that a sufficient supply of fuel oil is available, since low level alarms are provided and unit operators would be aware of any large uses of fuel oil during this period.SR 3.8.3.2 This Surveillance ensures that sufficient lube oil inventory is available to support at least 7 days of full load operation for each DG. The 400 gal requirement is based on the DG manufacturer consumption values for the run time of the DG. In order to account for the lube oil sump tank inventory decrease that occurs when the DG is started, the 400 gal requirement shall be met with the Surveillance conducted while the DG is running.A 31 day Frequency is adequate to ensure that a sufficient lube oil supply is available, since DG starts and run time are closely monitored by the unit staff.SR 3.8.3.3 The tests listed below are a means of determining whether new fuel oil is of the appropriate grade and has not been contaminated with substances that would have an immediate, detrimental impact on diesel engine combustion.

If results from these tests are within acceptable limits, the fuel oil may be added to the storage tanks without concern for contaminating the entire volume of fuel oil in the storage tanks. These Catawba Units 1 and 2 B 3.8.3-5 Revision No. 1 Catawba Units 1 and 2 B 3.8.3-5 Revision No. 1 Diesel Fuel Oil, Lube Oil and Starting Air B 3.8.3 BASES SURVEILLANCE REQUIREMENTS (continued) tests are to be conducted prior to adding the new fuel to the storage tank(s). The tests, limits, and applicable ASTM Standards are as follows: a. Sample the new fuel oil in accordance with ASTM D4057 (Ref. 7);b. Verify in accordance with the tests specified in ASTM D975 (Ref. 7)that the sample has a kinematic viscosity at 40°C of >_ 1.9 centistokes and _< 4.1 centistokes, and a flash point of _> 125°F; and c. Verify that the new fuel oil has a clear and bright appearance with proper color when tested in accordance with ASTM D4176 (Ref. 7) or a -water and sediment content within limits when tested in accordance with ASTM D2709; and d. Verify that the new fuel oil has an absolute specific gravity at 60/60'F of > 0.83 and < 0.89 when tested in accordance with ASTM D1298 or an API gravity at 60'F of > 270 and < 390 when tested in accordance with ASTM D287 (Ref. 7).Failure to meet any of the above limits, except for clear and bright, is cause for rejecting the fuel oil, but does not represent a failure to meet the LCO concern since the fuel oil is not added to the storage tanks. If the fuel oil fails on clear and bright, it may be accepted if it passes water and sediment.

The specifications for water and sediment recognize that a small amount of water and sediment is acceptable.

Thus, this test may be used after a clear and bright test to provide a more quantitative result.Within 31 days following the initial new fuel oil sample, the fuel oil is analyzed to establish that the other properties specified in Table 1 of ASTM D975 (Ref. 7) are met for new fuel oil when tested in accordance with ASTM D975 (Ref. 7). The 31 day period is acceptable because the fuel oil properties of interest, even if they were not within stated limits, would not have an immediate effect on DG operation.

This Surveillance ensures the availability of high quality fuel oil for the DGs.Fuel oil degradation during long term storage shows up as an increase in particulate, due mostly to oxidation.

The presence of particulate does not mean the fuel oil will not burn properly in a diesel engine. The particulate can cause fouling of filters and fuel oil injection equipment, however, which can cause engine failure.Particulate concentrations should be determined based on ASTM D6217 (Ref. 7). This test method is used for assessing the mass quantity of Catawba Units 1 and 2 B 3.8.3-6 Revision No. 2 Diesel Fuel Oil, Lube Oil and Starting Air B 3.8.3 , JI-RVltII ANCL RH(_-QUI-LMCN-IS (continued) particulates in middle distillate fuels, which includes 2-D diesel fuel. This method involves a gravimetric determination of total particulate concentration in the fuel oil and has a limit of 10 mg/l. For those designs in which the total stored fuel oil volume is contained in two or more interconnected tanks, each tank must be considered and tested separately.

The Frequency of this test takes into consideration fuel oil degradation trends that indicate that particulate concentration is unlikely to change significantly between Frequency intervals.

SR 3.8.3.4 This Surveillance ensures that, without the aid of the refill compressor, sufficient air start capacity for each DG is available.

The system design requirements provide for a minimum of five engine start cycles without recharging.

A start cycle is defined by the DG vendor, but usually is measured in terms of time (seconds of cranking) or engine cranking speed. The pressure specified in this SR is intended to reflect the lowest value at which the five starts can be accomplished.

The 31 day Frequency takes into account the capacity, capability, redundancy, and diversity of the AC sources and other indications available in the control room, including alarms, to alert the operator to below normal air start pressure.SR 3.8.3.5 Microbiological fouling is a major causeof fuel oil degradation.

There are numerous-bacteria that can grow in fuel oil and cause fouling, but all must have a water environment in order to survive. Removal of water from the fuel storage tanks once every 31 days. eliminates the necessary environment for bacterial survival.

This is the most effective means of controlling microbiological fouling. In addition, it eliminates the potential for water entrainment in the fuel oil during DG operation.

Water may come from any of several sources, including condensation, ground water, rain water, and contaminated fuel oil, and from breakdown of the fuel oil by bacteria-Frequent checking for and removal of accumulated water minimizes fouling and provides data regarding the watertight integrity of the fuel oil system. The Surveillance Frequencies are established by Catawba Units 1 and 2 B 3.8.3-7 Revision No. I Diesel Fuel Oil, Lube Oil and Starting Air B 3.8.3 BASES SURVEILLANCE REQUIREMENTS (continued)

Regulatory Guide 1.137 (Ref. 2). This SR is for preventive maintenance.

The presence of water does not necessarily represent failure of this SR, provided the accumulated water is removed during performance of the Surveillance.

REFERENCES

1. UFSAR, Section 9.5.4.2.2. Regulatory Guide 1.137.3. ANSI N195-1976, Appendix B.4. UFSAR, Chapter 6.5. UFSAR, Chapter 15.6. 10 CFR 50.36, Technical Specifications, (c)(2)(ii).

7. ASTM Standards:

D4057; D975; D1298; D4176; D2709; D6217;and D287.8. UFSAR, Section 18.2.4.9. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.Catawba Units 1 and 2 B 3.8.3-8 Revision No. 3 DC Sources-Operating B 3.8.4 BASES SURVEILLANCE REQUIREMENTS (continued)

Operating experience has shown that these components usually pass the SR when performed at the 18 month Frequency.

Therefore, the Frequency was concluded to be acceptable from a reliability standpoint.

SR 3.8.4.5 and SR 3.8.4.6 Visual inspection and resistance measurements of intercell, interrack, intertier, and terminal connections provide an indication of physical damage or abnormal deterioration that could indicate degraded battery condition.

The anticorrosion material, as recommended by the manufacturer for the batteries, is used to help ensure good electrical connections and to reduce terminal deterioration.

The visual inspection for corrosion is not intended to require removal of and inspection under each terminal connection.

The removal of visible corrosion is a preventive maintenance SR. The presence of visible corrosion does not necessarily represent a failure of this SR provided visible corrosion is removed during performance of SR 3.8.4.5.For the DG batteries utilizing nickel cadmium cells, the cell-to-cell terminal pole screws should be set from 14 to 15 foot-pounds of torque.Operating experience has shown that these components usually pass the SR when performed at the 18 month Frequency.

Therefore, the Frequency was concluded to be acceptable from a reliability standpoint.

SR 3.8.4.7 This SR requires that each battery charger for the DC channel be capable of supplying at least 200 amps and at least 75 amps for the DG chargers.

All chargers shall be tested at a voltage of at least 125 V for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. These requirements are based on the design capacity of the chargers (Ref. 4). According to Regulatory Guide 1.32 (Ref. 10), the battery charger supply is required to be based on the largest combined demands of the various steady state loads and the charging capacity to restore the battery from the design minimum charge state to the fully charged state, irrespective of the status of the unit during these demand occurrences.

The minimum required amperes and duration ensures that these requirements can be satisfied.

The Surveillance Frequency is acceptable, given the unit conditions required to perform the test and the other administrative controls existing to ensure adequate charger performance during these 18 month intervals.

In addition, this Frequency is intended to be consistent with expected fuel cycle lengths,.Catawba Units I and 2 B 3.8.4-7 I Revision No. 7 DC Sources-Operating B 3.8.4 BASES SURVEILLANCE REQUIREMENTS (continued)

SR 3.8.4.8 A battery service test is a special test of battery capability, as found, to satisfy the design requirements (battery duty cycle) of the DC electrical power system. The vital battery's actual duty cycle is identified in calculation CNC-1381.05-00-0011, 125 VDC Vital Instrumentation and Control Power System Battery and Battery Charger Sizing Calculation.

The test duty cycle is the actual duty cycle adjusted for the temperature correction factor for 601F operation, and a design margin of typically 10 to 15% for load addition.

The minimum DC battery terminal voltage is determined through Calculation CNC-1381.05-00-0149, 125 VDC Vital I&C Power System (EPL) Voltage Drop.Analysis.

The DG battery's actual duty cycle is identified in calculation CNC-1381.05-00-0050, 125 VDC Diesel Generator Battery and Battery Charger Sizing Calculation.

The test duty cycle is the actual duty cycle adjusted for the temperature correction factor for 601F operation, and a design margin of typically 10 to 15% for load addition.

The minimum DG battery terminal voltage is*determined through Calculations CNC-1381.05-00-0235, Unit 1 125 VDC Essential Diesel Power System (EPQ) Voltage Drop Analysis and CNC-1381.05-00-0236, Unit 2 125 VDC Essential Diesel Power System (EPQ)Voltage Drop Analysis. (Note: The duty cycle in the UFSAR is used for battery Sizing and includes the temperature factor of 11%, a design margin of 15%, and an aging factor of 25%.)Except for performing SR 3.8.4.8 for the DC channel batteries with the unit on line, the Surveillance Frequency of 18 months is consistent with the recommendations of Regulatory Guide 1.32 (Ref. 10), which states that the battery service test should be performed during refueling operations or at some other outage, with intervals between tests, not to exceed 18 months.This SR is modified by two Notes. Note 1 allows the performance of a modified performance discharge test in lieu of a service test.Catawba Units 1 and 2 B 3.8.4-8 Revision No. 7