ML17158C183
| ML17158C183 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 06/11/1997 |
| From: | Poslusny C NRC (Affiliation Not Assigned) |
| To: | Byran R PENNSYLVANIA POWER & LIGHT CO. |
| References | |
| TAC-M98740, TAC-M98741, NUDOCS 9706130177 | |
| Download: ML17158C183 (6) | |
Text
t
.Mi.. Robert G.
Byram Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, PA 18101 June ii, 1997
SUBJECT:
CHANGES TO THE BASES OF THE TECHNICAL SPECIFICATIONS, SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1
AND 2 (TAC NOS.
M98740 AND M98741)
Dear Mr. Byram:
By letter dated April 8,
- 1997, Pennsylvania Power and Light Company submitted changes to the Bases of the Susquehanna Steam Electric Station,
. Units 1
and 2 Technical Specifications (TSs).
The changes revise existing Bases B 3/4 7.6, "Fire Suppression Systems," to add the definition of Continuous Firewatch and Hourly Farewatch Patrols.
This letter acknowledges these changes to the TS Bases Section.
TS pages B 3/4 7-3, Unit 1
and B 3/4 7-4, Unit 2, with the proposed changes are enclosed.
Sincerely, Docket Nos.
50-387/388
Enclosure:
As stated cc w/encl:
See next page DISTRIBUTION (Original signed by)
Chester
- Poslusny, Senior Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket File PUBLIC PDI-2 Reading SVarga JStolz CPoslusnf OFFICE PD I-2 MO'Brien CPoslusny OGC ACRS
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 205550001 3une 11, 1997 Nr. Robert G.
Byram Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, PA 18101
SUBJECT:
CHANGES TO THE BASES OF THE TECHNICAL SPECIFICATIONS, SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1
AND 2 (TAC NOS.
H98740 AND N98741)
Dear Hr. Byram:
By letter dated April 8,
- 1997, Pennsylvania Power and Light Company submitted changes to the Bases of the Susquehanna Steam Electric Station, Units 1 and 2 Technical Specifications (TSs).
The changes revise existing Bases B 3/4 7.6, "Fire Suppression Systems,"
to add the definition of Continuous Firewatch and Hourly Farewatch Patrols.
This letter acknowledges these changes to the TS Bases Section.
TS pages B 3/4 7-3, Unit 1 and B 3/4 7-4, Unit 2, with the proposed changes are enclosed.
Sincerely, Docket Nos. 50-387/388
Enclosure:
As stated cc w/encl:
See next page g~lM~ j~
1 I+ll~yf.
Chester
- Poslusny, Senior Project Manager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
t
'r. Robert G.
Byram Pennsylvania Power 8 Light Company Susquehanna Steam Electric Station, Units 1
8 2 CC:
Jay Silberg, Esq.
Shaw.
Pittman.
Potts L Trowbridge 2300 N Street N.W.
Washington, D.C.
20037 Bryan A. Snapp, Esq.
Assistant Corporate Counsel PennsyTvania Power 8 Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. J.
M. Kenny Licensing Group Supervisor Pennsylvania Power
& Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. K. Jenison Senior Resident Inspector U. S. Nuclear Regulatory Commission P.O.
Box 35 Berwick, Pennsylvania 18603-0035 Mr. William P. Dornsife, Director Bureau of Radiation Protection Pennsylvania Department of Environmental Resources P. 0.
Box 8469 Harrisburg.
Pennsylvania 17105-8469 Mr. Jesse C. Tilton, III Allegheny Elec. Cooperative, Inc.
212 Locust Street P.O.
Box 1266 Harr isburg, Pennsylvania 17108-1266 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Mr. George Kuczynski Plant Manager Susquehanna Steam Electric Station Pennsylvania Power and Light Company Box 467 Berwick, Pennsylvania 18603 Mr. Herbert D. Woodeshick Special Office of the President Pennsylvania Power and Light Company Rural Route 1, Box 1797 Berwick, Pennsylvania 18603 George T. Jones Vice President-Nuclear Operations Pennsylvania Power and Light Company 2 North Ninth Street Allentown. Pennsylvania 18101 Dr. Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA 16803 Chairman Board of Supervisors 738 East Third Street
- Berwick, PA 18603
PLANTSYSTEMS BASES 3/4 7.4 SNUBBERS (continued)
The service life of a snubber is evaluated via manufacturer input and information through consideration of the snubber service conditions and associated installation and maintenance records (newly installed snubber, seal replaced, spring replaced, in high radiation area, in high temperature area, etc...).
The requirement to monitor the snubber service life is included to ensure that the snubbers periodically undergo a performance evaluation in view of their age and operating conditions. These records will provide statistical bases for future consideration of snubber service life. The requirements for the maintenance of records and the snubber service life review are not intended to affect plant operation.
3/4 7.5 SEALED SOURCE CONTAMINATION The limitations on removable contamination for sources required leak testing, including alpha emitters, is based on 10 CFR 70.39(c) limits for plutonium. this limitation will ensure that leakage from byproduct, source, and special nuclear material sources will not exceed allowable intake values. Seated sources are classified into three groups according to their use, with surveillance requirements commensurate with the probability of damage to a source in that group. Those sources which are frequently handled are required to be tested more often than those which are not. Sealed sources which are continuously enclosed within a shielded mechanism, i.e., sealed sources within radiation monitoring or boron measuring devices, are considered to be stored and need not be tested unless they are removed from the shielded mechanism.
3/4 7.6 FIRE SUPPRESSION SYSTEMS The OPERABILITY of the fire suppression systems ensures that adequate fire suppression capability is available to confine and extinguish fires occurring in any portion of the facility where safety related equipment is located. The fire suppression system consists of the water system, spray and/or sprinklers, CO2 systems, Halon systems and fire hose stations.
The collective capability of the. fire suppression systems is adequate to minimize potential damage to safety related equipment and is a major element in the facility fire protection program.
In the event that portions of the fire suppression systems are inoperable, alternate backup fire fighting equipment is required to be made available in the affected areas until the inoperable equipment is restored to service. When the inoperable fire fighting equipment is intended for use as a backup means of fire suppression, a longer period of time is allowed'to provide an alternate means of fire fighting than ifthe inoperable equipment is the primary means of fire suppression.
Hourly Firewatch Patrols shall be completed once each clock hour.
Individual zones on the hourly
- firewatch patrol shall be toured at intervals (i.e. zone A and back.to zone A) of sixty minutes with a margin of fifteen minutes.
A Continuous Firewatch must remain in the specified area at all times and must patrol the required fire zones in the specified area at least once per fifteen minutes with a margin of five minutes.
SUSQUEHANNA - UNIT 1 8 3/4 7-3 Amendment No.
Changed by letter dated
c, PLANTSYSTEMS (e
<l BASES 3/4 7.6 FIRE SUPPRESSION SYSTEMS The OPERABILITY of the fire suppression systems ensures that adequate fire suppression capability is available to confine and extinguish fires occurring in any portion of the facility where safety related equipment is located. The fire suppression system consists of the water system, spray and/or sprinklers, COz systems, Halon systems and fire hose stations.
The collective capability of the fire suppression systems is adequate to minimize potential damage to safety related equipment and is a major element in the facility fire protection program.
In thi. event that portions of the fire suppression systems are inoperable, alternate backup fire fighting equipment is required to be made available in the affected areas until the inoperable equipment is restored to service. When the inoperable fire fighting equipment is intended for use as a backup means of fire suppression, a longer period of time is allowed to provide an alternate means of fire fighting than ifthe inoperable equipment is the primary means of fire suppression.
Hourly Firewatch Patrols shall be completed once each clock hour.
Individual zones on the hourly firewatch patrol shall be toured at intervals (i.e. zone A and back to zone A) of sixty minutes with a margin of fifteen minutes.
A Continuous Firewatch must remain in the specified area at all times and must patrol the required fire zones in the specified area at least once per fifteen minutes with a margin of five minutes.
The surveillance requirements provide assurances that the minimum OPERABILITYrequirements of the fire suppression systems are met. An allowance is made for ensuring a sufficient volume of Halon in the Halon storage tanks by verifying the weight and pressure of the tanks.
In the event the fire suppression water system becomes inoperable, immediate corrective measures must be taken since this system provides the major fire suppression capability of the plant. The requirement for a twenty-four hour report to the Commission provides for prompt evaluation of the acceptability of the corrective measures to provide adequate fire suppression capability for the continued protection of the nuclear plant.
3/4 7.7 FIRE RATED ASSEMBLIES The OPERABILITY of the fire barriers and barrier penetrations ensure that fire damage will be limited. These design features minimize the possibility of a single fire involving more than one fire area prior to detection and extinguishment. The fire barriers, fire barrier penetrations for conduits, cable trays and piping, fire windows, fire dampers, and fire doors are periodically inspected to verify their OPERABILITY.
3I4 7.8 MAINTURBINE BYPASS SYSTEM The required OPERABILITYof the main turbine bypass system is consistent with the assumptions of the feedwater controller failure analysis in the cycle specific transient analysis.
SUSQUEHANNA - UNIT2 B 3/4 7-4 Amendment No.
I Changed by letter dated
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