ML20236R596
| ML20236R596 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 11/18/1987 |
| From: | Eury L CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML20236R598 | List: |
| References | |
| 87TSB24, NLS-87-242, NUDOCS 8711230378 | |
| Download: ML20236R596 (7) | |
Text
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- CDs, Carolina Power & Light Company
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P. o. Box 1551
- Raleigh, N C. 27602 NOV 18 587 j
SERIAL: NLS-87-242 sen$r v$cIPr.$ n, 10CFR30.90 87TSB24 operanons support United States Nuclear Regulatory Commission ATTENTION: Document Control Desk -
i Washington, DC 20555 j
BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 30-324/ LICENSE NO. DPR-62 REQUEST FOR LICENSE AMENDMENT l
CHLORIDE INTRUSION MONITOR TAG NUMBER Gentlemen:
In accordance with the Code of Federal Regulations, Title 10, Parts 50.90 and 2.101, Carolina Power & Light Company (CP&L) hereby requests a revision to the Technical Specifications (TS) for the Brunswick Steam Electric Plant (BSEP), Unit 2.
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The proposed changes replace instrument tag number TS-CR-863 in Item 2 of TS Tables 3.3.5.6-1, 3.3.5.6-2, and 4.3.5.6-1 with TS-CIT-863-3. This change is required due to a planned plant modification which upgrades the instrumentation.
Enclosure i provides a detailed description of the proposed changes and the basis for the changes. details the basis for the Company's determination that the proposed changes do not involve a significant hazards consideration. provides instructions for incorporation of the proposed changes into the Technical Specifications.
, provides a summary of the proposed Technical Specification changes on a page-by-page basis. provides the proposed Technical Specification pages.
In accordance with the requirements of 10CFR170.12, a check for $150 is also enclosed..
This amendment is required to support changes being made during the BSEP-2 refueling outage currently scheduled to begin on January 2,1988. Therefore, CP&L requests that it be issued no later than February 1,1988 to support start-up from the outage.
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' Docum:nt Control Desk NLS-87-242 / Page 2 In order to allow time for procedure revision and orderly incorporation into copies of the Technical Specifications, CP&L requests that the proposed amendment, once approved by the NRC, be issued with an effective date to be no later than 60 days from the issuance of the amendment.
Please refer any questions regarding this submittal to Sherwood R. Zimmerman at (919) 836-6242.
Yours very truly,
/ 462 L. W. Eury BAB/vtn (5326 BAT)
Enclosures:
1.
Basis for Change Request 2.
10CFR50.92 Evaluation 3.
Instructions for Incorporation 4.
Summary List of Revisions 5.
Technical Specification Pages cc Dr. J. Nelson Grace Mr. W. H. Ruland Mr. E. Sylvester Mr. D. H. Brown L. W. Eury, having been first duly sworn, did depose and say that the information contained herein is true and correct to the best of his information, knowledge and belief; and the sources of his information are officers, employees, contractors, and agents of Carolina Power & Light Company.
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ENCLOSUREI BRUNSWICK STEAM ELECTRIC PLANT, UNIT 2 NRC DOCKET 50-324 OPERATING LICENSE DPR-62 REQUEST FOR LICENSE AMENDMENT CHLORIDE INTRUSION MONITOR TAG NUMBER
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1 BASIS FOR CHANGE REQUEST The chloride leak detector in the condensate pump discharge provides indication of chloride intrusion in the feedwater and condensate systems. Chlorides pose a significant long-term threat to the integrity of the reactor coolant pressure boundary piping and associated interfacing support systems.
The instrument tag numbers listed under Item 2 in Tables 3.3.5.6-1, 3.3.5.6-2, and 4.3.5.6-1 represent both indicators and recorders. Indicator CO-CIS-3075-1 provides indication of the condensate pump discharge header conductivity. Its typical setpoint is 1.4 - 2.0 micro-mhos/cm increasing. TS-CR-863 represents a conductivity recorder and two analyzers; TS-CR-863-1 measures feedwater conductivity and has a t' pical setpoint
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of 0.097 - 0.103 micro-mhos/cm increasing and TS-CR-863-3 measures the condensate conductivity and has a typical setpoint of 0.28 - 0.30 micro-mhos/cm increasing.
The proposed change replaces instrument tag number TS-CR-863-3 of Item 2 in Tables 3.3.5.6-1,3.3.5.6-2, and 4.3.5.6-1 with tag number TS-CIT-863-3. A plant modification will replace monitoring instrument TS-CR-863-3 with an upgraded conductivity cell and analyzer (TS-CIT-863-3). The upgraded components are capable of detection and compensation for temperature transients which may occur in the sample being analyzed. The new conductivity analyzer will provide a direct and continuous reading without relying on a recorder. The new analyzer will also provide an output to a recorder for trending purposes.
Item 2 represents the chloride leak detector in the condensate pump discharge only; it does not represent instrumentation in the feedwater system. TS-CR-863-1, which represents a leak detector in the feedwater system, is not affected by this change nor is it covered by Item 2.
Currently, the TS require at least one channel of the chloride leak detection instrumentation in the condensate pump discharge to be operable. The proposed revision will not change this requirement.
None of the accident analyses presented in Chapter 15 of the Final Safety Analysis Report (FSAR) will be affected by this change. The chloride intrusion monitors are there to preclude long-term piping degradation in the feedwater and condensate systeins due to chloride intrusion. This function is not altered by the proposed change.
(5326 BAT /vtn)
ENCLOSURE 2 BRUNSWICK STEAM ELECTRIC PLANT, UNIT 2 NRC DOCKET 50-324 OPERATING LICENSE DPR-62 REQUEST FOR LICENSE AMENDMENT CHLORIDE INTRUSION MONITOR TAG NUMBER 10CFR50.92 EVALUATION The Commission has provided standards in 10CFR50.92(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 or different kind of accident from any accident previously evaluated, or (3) involve a significant reduction in a margin of safety. Carolina Power & Light Company has reviewed this proposed license amendment request and determined that its adoption would not involve significant hazards consideration. The bases for this determination are as follows:
The chloride leak detection instrumentation in the condensate pump discharge provides indication of chloride intrusion in the feedwater and condensate systems. Chlorides pose a long-term threat to the integrity of stainless steel piping systems.
The proposed changes to the TS replaces instrument tag number TS-CR-863 of Item 2 in Tables 3.3.5.6-1,3.3.5.6-2, and 4.3.5.6-1 with tag number fS-CIT-863-3. Item 2 lists chloride leak detection instrumentation in the condensate pump discharge. The change is necessary due to a plant modification which will replace the instrument represented by TS-CR-863-3 with an upgraded conductivity cell and analyzer, represented by tag number TS-CIT-863-3. The upgraded components are capable of detecting and compensating for temperature transients which may occur in the sample being analyzed. The new conductivity analyzer will provide a direct and continuous reading without relying or, a recorder. The new analyzer will also provide an output to a recorder l
for trending purposes.
B_9si_s The change does not involve a significant hazards consideration for the following reasons:
l 1.
The accidents analyzed in Chapter 15 of the FSAR are not affected by the l
chloride leak detection instrumentation change because the function of the instrument is not altered, and the chloride limits established in TS 3/4.4.4 is not being changed. In addition, the new instrument being installed is capable of detecting and compensating for temperature transients which may occur in the sample being analyzed. The current system requires additional data processing to achieve the same results. Based on this reasoning, CP&L has determined that the proposed amendment does not involve a significant increase in the probability or consequences of an accident previously evaluated.
(53268AT/vtn)
l 2.
As stated above, the chloride leak detection instrumentation provides protection from long-term piping degradation in the feedwater and condensate systems caused by chloride intrusion. No possibility of a new or different kind of accident is created because the new instruments perform the same basic function as the ones they are replacing. Also, the reactor coolant system chloride limits established in TS 3/4.4.4 are not being changed. The new instrument has enhanced capabilities; it processes the data into a more useful form prior to readout. Based on the above reasoning, CP&L has determined that the proposed amendment does not create the possibility of a new or different kind of accident from any accident previously evaluated.
3.
The margin of safety is not reduced because, as stated above, the new instrument performs the same basic function as the one it is replacing and the chloride limits established in TS 3/4.4.4 are not being changed. In fact, the new instrument has enhanced capabilities which may provide the user with i
better data, thereby providing earlier indication of chloride intrusion, and I
perhaps avoiding long-term problems with pipe degradation due to chloride intrusion. Based on this reasoning, CP&L has determined that the proposed amendment does not involve a significant reduction in the margin of safety.
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4 ENCLOSURE 3 BRUNSWICK STEAM ELECTRIC PLANT, UNIT 2 NRC DOCKET 50-324 OPERATING LICENSE DPR-62 REQUEST FOR LICENSE AMENDMENT CHLORIDE INTRUSION MONITOR TAG NUMBER INSTRUCTIONS FOR INCORPORATION The proposed changes to the Technical Specifications (Appendix A to Operating License DPR-62) would be incorporated as follows:
UNIT 2 Remove Page Insert Page 3/4 3-56 3/4 3-56 3/4 3-57 3/4 3-57 1
3/43-58 3/4 3-58 l
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(5326 BAT /vtn)
l ENCLOSURE 4 BRUNSWICK STEAM ELECTRIC PLANT, UNIT 2 NRC DOCKET 50-324 OPERATING LICENSE DPR-62
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REQUEST FOR LICENSE AMENDMENT
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CHLORIDE INTRUSION MONITOR TAG NUMBER
SUMMARY
LIST OF REVISIONS UNIT 2 Pages Description of Changes 3/4 3-56 through 58 Replaced instrument tag number TS-CR-863 in item 2 l
with TS-CIT-863-3.
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