ML20246K916
| ML20246K916 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 08/28/1989 |
| From: | William Cahill, Walker R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TXX-89599, NUDOCS 8909060167 | |
| Download: ML20246K916 (8) | |
Text
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.ra' m Namme F %-
Log # TXX-89599 l
File # 10010
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1UELECTRIC.
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August 28, 1989 William J. Cablit, Jr.
Executive Vicel*rrsklent
'U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.~C.
20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS.-50-445 AND 50-'446
' ADVANCE FSAR SUBMITTAL HIGH SILICA CONCENTRATION ALARM FUNCTION Gentlemen:
This.' letter provides an advance copy of a change to be included in a future
- FSAR amendment.
This change has deleted the alarm for high silica concentration pertaining to the Demineralized and Reactor Nakeup Water System.
In order to facilitate NRC Staff review of this change, the attachment is organized'as follows:
1.
Draft revised FSAR pages, with change portions indicated by a bar in the margin.'as they'are to appear in a future amendment.
2.
A detailed description / justification for the change.
- 3.. A copy.of a 'related SER section.
4.
A page containing the title of a " bullet" which consolidates and categorizes:similar individual changes by subject and related SEP section.
l 8909060167 890828 PDR ADOCK 05000445 A
PDC 1 1 400 North Olive Street LB81 Dallas, Texas 75201
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TXX-89599 August 28, 1989 Page 2 of 2 5.
The bold / overstrike version of the revised FSAR pages referenced by the detailed description /, justification for the changes identified above. The bold / overstrike version facilitates review of the revision by highlighting each addition of new text in bold type font and overstriking with a slash (/) the portion of the text that is deleted.
Sincerely, h-vr' William J. Cahill, Jr.
By:
M401b M
Roger 3. Walker Manager, Nuclear Licensing MCP/ deb Attachment c - Mr. F, D. Martin, Region IV Residint Inspectors, CPSES (3)
1 l
Attachment to TXX-89599 August 28, 1989 Advance FSAR Submittal Concerning High Silica Concentration Alarm Function Item 1 Draft Revised FSAR Pages 2
Item 2 Detailed Description / Justification for 3
Changes Item 3 Related SER Section 4
Item 4 Bullet Title 5
Item 5 Bold /0verstrike Version of Revised FSAR 6
Pages Page 1 of 6 i
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CPSES/FSAR'
- Attach:ent to TXX-89599
. August 28 Page 2.of %)9p2nual control. The final ~ water quality of the Water Treatment 76 p
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System is continuously monitored for conductivity.
High conductivity-DRAFT is alarmed locally and in the Control Room. Deviations from specified water quality trip the demineralizers to prevent poor-9.2-39 Oraft Version
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DETAILED DESCRIPTION Attache:nt to TXX-89599
- . August 28,'1989-
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- Fggf 6 (as amended)
Grous inscription 1'l 9.2-39' 2
Removes "high silica concentration" for alarm function I
locally and in the Control Room for the Demineralized -
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and Reactor Makeup Water. System to reflect the as-built condition.
Correction:
The final water' quality of the Water Treatment System'
' is not alarmed locally -or in. the Control Room:
therefore, "high silica concentration" is to be removed for alarm function to. reflect the as-built condition.
FSAR Change Request Number: 89-437 Related SER Section:-9.2.3 SER/SSER Impact:-No L-l-
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- Attachesnt to TXX-89599 JAuguit' 28,{1989'
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Page 4.of'6 The componenti cooling waterzsystem is separated from the effects of inte generated missiles and_high-and moderate energy pipe breaks.
is located in a separate compartment in.the auxiliary building..Each CCW pump requirements of GDC 4 and the guidelines of BTP AS8 3-1 are met. Thus,.the-
~0ne'CCW pump per unit is normally operating. ' Avai Technical Specifications.
inservice inspection as required.The system is' located in accessible areas to pem Thus, the requirements of GDC 45 and 46-are met.'
Based on the:above
' meets the requireme,nts of GDCthe staff concludes that the component cooling water 2, 4, 5,_44, 45, and 46-(with respect to;the system protection against natural phenomena, missiles,.and environmental. effects,' decay heat removal. capability, inservice inspection, and functional testing) and the guidelines of Regulatory Guides 1.26,'1.29, 1.102, and 1.117 and BTP ASB 3-1
~ (with respect to the systems quality group and seismic classification and flood, tornado missile and pipe breas effect protection).
Therefore, the system is acceptable.-
9.2.3 Demineralized and Reactor Makeup Water System
. The nonsafety related demineralized and reactor makeup water system is a single
. system designed to provide an adequate supply of deaerated demineralized water of reactor coolant purity to other systems as makeup and to provide other plant demineralized water requirements for both units of the station.
Water from onsite wells or from the surface _ water retreatment facility is used as influent to the system.
The-system has no safety-related function.
Protection from flooding for safety-related equipment resulting from failure of the system is discussed in Section 9.3.3 of this SER. - Failure of any nonseismic equipment associated with this system will not cause any failure of safety-related systems or. components.
The system is capable of fulfilling the nomal operating require-ments of the facility for acceptable makeup water and is designed with the necessary component redundancy. Alarmed instrumentation has been provided to prevent delivery of offspecification water to safety-related systems.
Components of the demineralized and reactor makeu chemicals used throughout the system. p water system are compatible with all Failure of the system does not affect the capability to safely shut down the plant as described above.
Thus, the-requirements of GDC 2 and 5 and the guidelines of Ppsition C.2 of Regulatory Guide 1.29 are met.
I Based on its review, the staff finds that the system meets the requirements of GDC 2 with respect to the need for protection'against natural phenomena, meets the requirements of GDC 5 in regard to the effect of sharing in multiple unit facilities, and meets the guidance of Regulatory Guide 1.29 concerning its seismic classification.
herefore, it is acceptable.
9.2.4 Potable and Sanitary Water System The nonsafety-related potable and sanitary water system provides clean water for human consumption and use, backup lubricating water for circulating water
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pumps, and water to supply circulating water chlorine evaporators.
Water for the system is supplied by two deep wells, or alternatively, from the surface 9-12
.,_ L ttache:nt'to TXXa89599 A
^':n VAugust.28.J1989' Page Si"of:6-
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- 9 '. 2 :
Water Systems 9.2.3 '
Demineralized Reactor Makeue Water System.-
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SPLB' 8.-
The.FSAR has. deleted,the alarm for high silica
' concentration.
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.CPSES/FSAR-f9 *,..,;'. ;-i; Attachi:nt to 1TXX-89599 -
py-y -- v August' 28'; fDF80anual: control.
The: final water quality'of'the Water TreatmInt 76-k' !
^Page6Lof'{ystemiscontinuouslymonitoredforconductivity
. -High conductivity L:
is ddd:HidM ffIftd'tddtddf/dffdd 4/d alarmed locally'and in the l
. Control 3 Room. Deviations from.specified water. quality trip the Jdemineralizers to prevent" poor ig-d j ' ',
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