ML20196K214
| ML20196K214 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 06/27/1988 |
| From: | Eury L CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML20196K218 | List: |
| References | |
| NLS-88-123, NUDOCS 8807060544 | |
| Download: ML20196K214 (7) | |
Text
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carenne peuer a uent company P$ o. Box 1551
- Raleigh. N. C. 27602 JUN 2 719N LYNN W. EURY Senior Vice President.
SERIAL: NLS-88-123 D * *
- 10CFR50.90 88TSB07 United States Nuclear Regulatory Commission
. ATTENTION: Document Control Desk Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 1 DOCKET NO. 50-325/ LICENSE NO. DPR-71 REQUEST FOR LICENSE AMENDMENT CHLORID 3 INTRUSION MONITOR 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 1.
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. provides a detailed description of the proposed changes and the basis for the changes. details the basis for the Company's determination that the l
l-proposed changes do not involve a significant hazards consideration.
l-provides instructions for incorporation of the proposed i
changes into the Technical Specifications.
I provides a summary of the proposed Technical Specification changas on a page by page basis. provides the proposed Technical Specification pages for L
Unit 1.
l In accordance with the requ.rements of 10CFR170.12, a check for $150 is l
also enclosed.
l hf0 8807060544 880627 I
PDR ADOCK 05000375 P
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$'15,C
'E Documsnt Control Dssk NLS-88-123 / Page 2 By letter dated Nevember 11, 1987, CP&L submitted a license amendment request to. install the same modification on BSEP Unit 2.
This requested-amendment was subsequently approved by.the NRC and' issued as Amendment Number 145 dated March 15, 1988.
This amendment is required to support changes being made during the v
'BSEP-1 refueling outage currently scheduled to begin on November 12, 1988. Therefore, CP&L requests that it be issued no later than December 30, 1988 to support start-up from the outage.
Please refer any questions regarding this submittal to Mr. Stephen D.
Floyd at (919) 836-6901.
Yours very truly, L
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L. W. Eury,/
BAB/bab
Enclosures:
1.
Basis for Change Request 2.
10CFR50.92 Evaluation 3.
Instructions for Incorporation 4.
Summary List of Revisions 5.
Technical Specification Pages cc:
Mr. Dayne H. Brown Dr. J. Nelson Grace Mr. W. H. Ruland
,Mr. B. C. Buckley 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 6,g.o un.,,,
to RA, Light Company.
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ENCLOSURE 1 BRUNSWICK STEAM ELECTRIG PLANT, UNIT 1 NRC DOCKET NO. 50 325-3 OPERATING LICENSE NO. DPR-71 REQUEST FOR LICENSE AMENDMENT CHLORIDE INTRUSION MONITOR BASIS FOR CHANGE REOUEST 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-e.hos/cm increasing. TS-CR-863 represents a conductivity recorder and
.vo analyzers; one which measures feedwater conductivity and has a j
typical setpoint of 0.097 0.103 micro-mhos/cm increasing, and another which 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 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 with an upgraded conductivity cell and analyzer (TS-CIT 863-3).
The upgraded components are capable of detection 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 on a recorder. The new analyzer will also provide an output to a recorder for trending purposes.
Currently, the Technical Specifications require at least one channel of the chloride leak detection instrumentation in the condensate pump l
discharge to be operable.
The proposed revision will not change this requirement.
None of the accident analyses presented in Chapter 15 of the Updated Final Safety Analysis Report will be affected by this change.
The i
chloride intrusion monitors are there to preclude long-term piping l
degradation in the feedwater and condensate systems due to chloride
-intrusion. This function is not altered by the proposed change.
El-1 1
f ENCLOSURE 2 L
BRUNSWICK STEAM ELECTRIC PLANT, UNIT 1 NRC DOCKET NO 50-325
\\.
OPERATING LICENSE NO. DPR 71 d.
REQUEST FOR LICENSE AMENDMENT CHLORIDE INTRUSION MONITOR t.
10CFR50. 92 - EVALUATION The Commission has provided standards'in 10CFR50.92(c) for determining whether a significant hazards consideration exists. A proposed amendment to 4us 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 of a-new 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 a 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 change to the Technical Specifications 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 instrument tag number TS-CIT-863-3.
This change is necessary due to a. plant modification which will replace the instruments 1
represented by TS-CR-863 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 on a recorder, The new analyzer will also provide an output to a recorder for trending purposes, pasis The change does not involve a significant hazards consideration for the following reasons:
1.
The accidents analyzed in Chapter 15 of the Updated FSAR are not affected by the 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 are not being changed.
In addition, the new instruments being installed are capable of E2-1 1
o t
'9 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.
~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 instruments perform the same basic function as the ones they are replacing and'the chloride limits established in TS 3/4.4.4 are not being changed.
In fact, the new instruments have enhanced
-capabilities which may provide the user with better data, thereby providing an earlier indication of chloride intrusion, and 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, e
E2 2
ENCLOSURE 3
, BRUNSWICK STEAM' ELECTRIC PLANT, UNIT 1 NRC DOCKET NO. 50-325 OPERATINC LICENSE NO.- DPR-71
. REQUEST FOR LICENSE AMENDMENT CHLORIDE INTRUSION MONITOR INSTRUCTIONS FOR INCORPORATION The' proposed' changes to the Technical Specifications (Appendix A to Operating License DPR 71) would be incorporated as follows:
UNIT 1 Remove Page Insert Paze 3/4 3-56 3/4 3-56 3/4 3 3/4 3-57 3/4 3-58 3/4 3 58 E3-1
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. m, ENCIDSURE 4 BRUNSWICK STEAM ELECTkIC ~ PIANT, UNIT 1 NRC DOCKET No. 50-325 OPERATING LICENSE NO. DPR-71 REQUEST FOR LICENSE AMENDMENT CHIDRIDE INTRUSION MONITOR
SUMMARY
LIST OF REVISIONS UNIT 1 Pages Descriotion of Channes 3/4 3-56 through 58' Replace instrument tag number TS-CR-863 in Item 2 with TS-CIT-863-3
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