ML993470363
| ML993470363 | |
| Person / Time | |
|---|---|
| Issue date: | 11/17/1999 |
| From: | Beckner W Technical Specifications Branch |
| To: | Jennifer Davis Nuclear Energy Institute |
| References | |
| Download: ML993470363 (19) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001
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November 17, 1999 Mr. James Davis, Director Operations Department Nuclear Energy Institute 1776 1 Street, N. W.
Su'e 400 WaShington, DC 20006-3708
Dear Mr. Davis:
This letter transmits a consolidated draft of Standard Technical Specifications (STS) 3.8.4, "DC Sources - Operating," 318.5,,pC Sources - Shutdown," and 3.8.6, "Battery Parameters'.
These specifications Were the subject of a meeting on September 20, 1999, between the Industry, the NRC staff, and the IEEE Nuclear Task Force (NTF). Following the meeting, we sent a reviSed draft of the specifications to the meeting participants for comment in a letter dated September.29, 1999. Subsequently, the IEEE NTF met on October 4, 1999, and reached consensus on the specifictions. The IEEE NTF reached technical agreement on the specifications In combination with comments provided by the TechnicalSpecification Task Force (TSTF). The comments of the TSTF and the IEEE NTF have been Incorporated into the attached revision, with a few exceptions. Comments 3 and 8 regarding different bctiops for BWRs were not Incorporated into the final draft. We agree with these comrnments and riequest that the TSTF Incorporate them when it prepares markupp of the NNUREGs 1433 and 1434. In addition, We have decided to leave the current STS Completion Times. of 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for STS 3A8.4, Conditions B and C, in brackets in the final draft. We request that the TSTF prepare Bases that Include a reviewer's note that explains that any licensee wishing to request a longer Completion Time will need to demonstrate that the longer.Completion Time Is appropridate for the plant In accordance with the guidance in Regulatory Guide (RG) 1.177, MAn Approach. for Plant-Specific, Risk-Informed Decision making: Technical Specifications;". Our decision was based on the fact that we had no generic risk analysis available that could siupport a 12-hour Completion Time for all plants and the desire to avoid introducing inconsistencies between STS 3.8.4 and STS 3.8.9.
We request that the TSTF use the attached specifications as the basis for preparing proposed revisions to the 8TS, including revisedBases sections, for formal submittal to the NRC under the TSTF process. We also request'that you Withdraw all previous proposed changes related to these same specifications. The Bases should contain sufficient technical depth and detail to provide a.dear understanding of the rationale for the requirements, especially any proposed new relaxations from the current specifications. They should also provide guidance on how to determine plant specific parameters where they are required or referenced In the technical specifications (typically found within notes or brackets). This is necessary because of the large number of changes Involved in this revision, to ensure that Users outside the circle of the specification developers understand how to properly Interpret and implement the requirements. It is also necessary because some changes made In the final stages of the development may not have received a comprehensive evaluation. In order to ensure that these changes are Incorporated Into Revision 2 of the STS, we request that you~submit the proposed changes as soon as possible. The NRC staff is committed to expeditiously complete the review of the proposed changes once submitted.
%.=
J v. November 17, 1999 Please contact Nanette Gilles of my staff at (301) 415-1180 or e-mail nvg@nrc.gov If you have any questions or need further Information.
Sincerely, a
William D. Beckner, Chief Technical Specifications Branch Division of Regulatory Improvement Programs Office of Nuclear Reactor Regulation
Enclosures:
As stated cc: See attached list T
J. Davis
Mr. Vincent Gilbert Nuclear Energy Institute 17761 Street, NW, Suite 400 Washington, DC 20006-3708 Mr. John Coyle PECO Energy Company 965 Chesterbrook Boulevard Wayne, PA 19087 Mr. Harold D. Pontious, Jr.
,Commonwealth Edison Company LaSalle County Station 2601 North 21st Street Marseilles, IL 61341 Mr. Dennis Buschbaum TXU Bertric Comanche Peak Steam Electric Station P. O. Box 1002 Glen Rose, TX 76043 Mr. Robert Beavers Commonwealth Edison Company 1400 Opus Place, Suite 400 Downers Grove, IL 60515 Mr. Dan Williamson 271 Glen Lyon Dr.
Orange Park, FL 32073 Mr. Donald Hoffman EXCEL Services Corporation 11921 Rockville Pike, Suite 100 Rockville, MD 20852 Mr. Kyle Floyd Southern Company 3872 Highway-61 Columbia, AL 36319 Scc:
Enclosures Final Draft STS 3.8.4, 3.8.5, and 3.8.6
DC Sources -Operating 3.8.4 3.8 ELECTRICAL POWER SYSTEMS 3.8.4 DC Sources-Operating LCO 3.8.4 APPLICABILITY:
The Train A and Train B DC electrical power subsystems shall be OPERABLE.
MODES 1. 2. 3. and 4.
Consolidated Draft 3.8-25 10/29/99
DC Sources -Operating 3.8.4 CONDITION REQUIRED ACTION COMPLETION TIME A.
One [or two] battery charger[s on one train] inoperable.
(a)
Verify battery[ies] not discharging.
AND (b)
Verify battery[ies]
terminal voltage is greater than or equal to the minimum required voltage to support OPERABILITY of associated required loads.
AND A.3 Verify associated battery[ies] state of charge is sufficient to perform the design duty cycle.
AND A.4 Restore battery charger[s] to OPERABLE status.
2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 2 hours and once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 7 days B.
One [or two]
B.1 Restore battery[ies] to
[2] hours battery[ies on one OPERABLE status.
train] inoperable.
Consolidated Draft ACTIONS 3.8-26 10/29/99
DC Sources -Operating 3.8.4 CONDITION REQUIRED ACTION COMPLETION TIME C.
One DC electrical C.1 Restore DC electrical
[2] hours power subsystem power subsystem to inoperable for OPERABLE status.
reasons other than Condition A or B.
D.
Required Action 'and D.1 Be in MODE 3.
6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not AND met.
D.2 Be In MODE 5.
36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.4.1 Verify battery terminal voltage is greater 7 days than or equal to the minimum established float voltage.
Consolidated Draft I
3.8-27 10/29/99
DC Sources-Operating 3.8.4 SR 3,8.4.3 Verify each battery charger supplies
> [400) amps at greater than. or equal to minimum float voltage for ý [4J hours.
Verify each battery charger can recharge the battery to the fully charged state within
[24) hours while supplying the largest combined demands of the various continuous steady state loads, after a battery discharge to the bounding design basis event discharge state.
NOTES ------------------
- 1.
The modified performance discharge test in SR 3.8.6.6 may be performed in lieu of SR 3.8.4.3.
- 2.
This Surveillance shall not be performed in MODE 1. 2. 3. or 4.
However. credit may be taken for unplanned events that satisfy this SR.
w------------
Verify battery capacity is adequate to supply, and maintain in OPERABLE status, the required emergency loads for the design duty cycle when subjected to a battery service test.
FREQUENCY 4
[18 months]
[18 months]
U Consolidated braft SURVEILLANCE SR 3.8.4.2 3.8-28 10/29/99
DC Sources -Shutdown 3.8.5 3.8 ELECTRICAL POWER SYSTEMS 3.8.5 DC Sources-Shutdown LCO 3.8.5 APPLICABILITY:
DC electrical power subsystem shall be OPERABLE to support the DC electrical power distribution subsystem(s) required by LCO 3.8.10, "Distribution Systems - Shutdown."
MODES 5 and. 6.
During movement of irradiated fuel assemblies.
Consolidated Draft 3.8-28 10/29/99
DC Sources-Shutdown 3.8.5 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One [or two] battery charger[s on one train]
- 3. Verify battery[ies] not discharging.
AND Verify battery[ies]
terminal voltage is greater than or equal to the minimum required voltage to support OPERABILITY of associated required loads.
Verify associated battery[iesJ state of charge is sufficient to perform the design duty cycle.
Restore battery charger[s] to OPERABLE status.
2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 2 hours Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 7 days I
L (continued)
Consolidated Draft A.2 AND A.3 AND A.4 3.8-29 10/29/99
DC Sources -Shutdown 3.8.5 CONDITION REQUIRED ACTION COMPLETION TIME B. One DC electrical power subsystem" Inoperable for reasons other than Condition A.
Declare affected required feature(s) inoperable' B.2.1 Suspend CORE ALTERATIONS.
AND B.2.2 Suspend movement of irradiated fuel assemblies.
AND B.2.3 Initiate action to suspend operations involving positive reactivity additions.
AND B.2.4 Initiate action to restore required DC electrical power subsystems to OPERABLE status.
B.1 Consolidated Draft Immediately Immediately Immediately Immediately Immediately I ________________________
L ______________
3.8"30
.10/29/99
DC Sources-Shutdown 3.8.5 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.5.1
NOTE -----------------
The following SRs are not required to be performed:
SR 3.8.4.2 and SR 3.8.4.3.
For DC sources required to be OPERABLE, the In accordance following SRs are applicable:
with applicable SR 3.8.4.1. SR 3.8.4.2. and SR 3.8.4.3.
SRs Consolidated Draft 33.8o31 10/29/99
Battery Parameters 3.8.6 3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery Parameters ft.------
REVIEWER'S NOTE ----------- --------
The adoption of this specification is contingent upon implementation of a program to monitor battery parameters in accordance with IEEE Standard 450 1995. "IEEE Recommended Practice for Maintenance. Testing. and Replacement of Vented Lead-Acid Batteries for Stationary Applications.*
t--------w............w-
w------
LCO 3.8.6 APPLICABILITY:
Battery parameters for the Train A and Train B batteries shall be within limits.
When associated DC electrical power subsystems are required to be OPERABLE.
ACTIONS
--.-.. --......................... ----- NOTE--.
Separate Condition entry is allowed for each battery.
ft----------------------
CONDITION REQUIRED ACTION COMPLETION TIME A. One or more batteries A.1 Perform SR 3.8.4.1.
2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> with one or more battery cell float AND voltages < [2.07] V.
A.2 Perform SR 3.8.6.1.
2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> AND A.3 Restore affected cell 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> voltages to within limit.
Consolidated Draft 3.8-31 10/29/99
Battery Parameters 3.8.6 CONDITION REQUIRED ACTION COMPLETION TIME B. One or more batteries B.A Restore battery float 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with float current <
current to within limits.
0 amps or Z: 2 amps.
........... NOTE ----------- C.1 Restore electrolyte level 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Required Action C.2 shall to above top of plates.
be completed if electrolyte level was AND below the top of plates.
C.2
.-- NOTE ------
Only applicable if C. One or more batteries electrolyte level is with one or more cells below the top of electrolyte level less plates.
than minimum established design limits.
Perform SR 3.8.6.5 for affected cell(s).
Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for 7 days AND C.3 Restore electrolyte level to greater than or equal 31 days to minimum established design limits.
Consolidated Draft 3.8-'32 10/29/99
Battery Parameters 3.8.6 CONDITION REQUIRED ACTION COMPLETION TIME D. One or more batteries D.1 Restore battery pilot 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> with pilot cell cell temperature to electrolyte greater than or equal to temperature less than minimum established minimum established design limits.
design limits.
E. Required Actions and E.1 Declare associated Immediately associated Completion battery inoperable.
Time of Condition A, B. C, or D not met.
OR One or more batteries float current
> 10 amps.
Consolidated Draft 3.8-33 10/29/99
Battery Parameters 3.8.6 SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.8.6.1 NOTE -------- -----
Not required to be met when battery terminal voltage is less than the minimum float voltage recommended by the battery manufacturer.
Verify 0 amps each battery float current is >
and < [2] amps.
FREQUENCY 4
7 days SR 3.8.6.2 Verify each battery pilot cell voltage is a 31 days
[2.07] V.
SR 3.8.6.3 Verify each battery connected cell 31 days electrolyte level is greater than or equal to minimum established design limits.
SR 3.8.6*4 Verify each battery pilot cell temperature 31 days is greater than or equal to minimum established design limits.
SR 3.8.6.5 Verify each battery connected cell voltage 92 days is a [2.07] V.
Consolidated Draft 318-34 10/29/99
Battery Parameters 3.8.6 NOTE ----------.--------
This Surveillance shall not be-performed in MODE 1. 2, 3. or 4.
However. credit may be taken for unplanned events that satisfy this SR.
Verify battery capacity is > t80o% of the manufacturer's rating when subjected to a performance discharge test or a modified performance discharge test.
Y FREQUENCY I.
60 months AND 12 months when battery shows degradation or has reached
[851% of the expected life with capacity
< 100% of manufacturer's rating AND 24 months when battery has reached [85J%
of the expected life with capacity
> 100% of manufacturer's rating L ____________________________
Consolidated Draft SURVEILLANCE SR 3.8.6.6 -"
3.8-35 10/29/99
b J. Davis November 17, 1999 Please contact Nanette Gilles of my staff at (301) 415-1180 or e-mail nvg@nrc.gov if you have any questions or need further information.
Sincerely, Orlional Signed BY William D. Beckner, Chief Technical Specifications Branch Division of Regulatory Improvement Programs Office of Nuclear Reactor Regulation
Enclosures:
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J. Davis November 17, 1999 Please contact Nanette Gilles of my staff at (301) 415-1180 or e-mail nvg@nrc.gov If you have any questions or need further Information.
Sincerely, original Signed By William D. Beckner. Chief Technical Specifications Branch Division of Regulatory Improvement Programs Office of Nuclear Reactor Regulation
Enclosures:
As stated cc: See attached list DISTRIBUTION:
FILE CENTER TSB R/F PUBL IC via e-mail:
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