ML20081C565
| ML20081C565 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 03/09/1984 |
| From: | Schroeder C COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20081C569 | List: |
| References | |
| 8271N, NUDOCS 8403140175 | |
| Download: ML20081C565 (4) | |
Text
.
b.-9
/ ^ON Commonwealth Edison
/
) Orva First National Plata. Chicago, Illinois
! O Address Reply to: Post Othee Box 767 s\\
Chicago, Illinois 60690 March 9, 1984 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
LaSalle County Station, Units 1 and 2 Fire Protection NRC Docket Nos. 50-373 and 50-374 References (a):
LaSalle County Station Unit 2 Facility Operating License NPF-18 (December 16, 1983).
(b):
C.W.
Schroeder letter to H.R. Denton dated November 23, 1983.
(c):. Inspection Report Nos. 50-373/83-44 and 50-374/83-48.
Dear Mr. Denton:
The attached three reports regarding the fire detection system at LaSalle were prepared in response to the following two p
items:
1)
Reference (a) identified license conditions in attachments 1.E.1 and 1.F.1.
1.E.1 States:
Prior to exceeding 5% of rated full power operation the licensee shall conduct a review of the adequacy of its fire detector system installation.
This evaluation shall specifically address the number and location of fire detectors, and ventilation effects on the ability of the detectors to sense a fire.
The licensee shall initiate compensatory measures in areas found deficient to assure adequate fire detection capability.
These compensatory measures will remain in place until permanent modifications l
to correct any deficiencies are made to the fire detection system.
1.F.1 States:
Prior to startup following the first refueling outage the licensee shall complete all modifications to the fire detection system identified as being required.
hL B403140175 840309 h
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PDR ADOCK 05000373 F
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2 H. R. Denton March 9, 1984 2)'
Issue 3 of Reference (b) and Item 9 of Reference (c) address the same matter as listed above.
attached reports:It is requested that these two items be closed based on the Final Report, Interim Report No. 1 Station dated FebruaryAnalysis of Fire Detector Locations at La 21, 1984 SDl, 5D2 LSCS FSAR Fire Areas 4C1, 4El, 4E2, 4E3, 4E4, 4F1, 4F2, Final Report, Interim Report No. 2 Anaysis of Fire dated March 6, 1984 Detector Locations at LaSalle County Station LSCS FSAR Fire Areas 3E, 2E, 2F, 3F-3G, 2G, 3H1, 2H1, AB, 4D2, 4D1, 4F3, 5B13, 5C11 Final Report, Interim Report No. 3 dated March 8, 1984 Analysis of Fire Detector Locations at LaSalle Count LSCS FSAR Fire Areas 281, 3B1, 2B2, 3B2, 2C, 3C, 20, 3D, 2J, 3J, 2H2, 3H2, 2H3, 3H3, 2H5, 3HS, 2H4, 3H4, 2I1, 3II, 2I2, 3I2, 2I3, 313, 2I5, 315, 2I4, 3I4, 4A, 4C2, 4C3, AC4, AC5, 4D3, 404, 5A4, 6E, 7Al, 8Al, 7A2, 8A2, 7A3, 7C4, 8C3, 7C5, 8C4, 7C6, 8C5, 10Al, 1081 the fire detector installation at LaSalle.These three separate safety-related areas not included were the diesel generator The only rooms (covered by automatic total-flooding CO2 system protection).
Interim Report No. 1 contains the results of the review of the areas that were originally a concern of the NRC (Reference (c)).
These areas are the AEER (Auxiliary Electrical Equipment Room),
CR (Control Room), and SWGR (Switchgear Rooms) which have continuous ventilation air flows and high numbers of air changes per hour.
For this reason these areas were given high priority for review.
Interim Report No. 2 contains the results of the review for the remainder of the fire areas addressed in the NRC Region III Inspection Report.
t-
6
'J H. R. Denton March 9, 1984 Interim Report No. 3 contains the results of the review of the additional 50 fire areas containing safety-related equipment or equipment required for safe shutdown.
These' reports were prepared by Schirmer Engineering Corporation and have been reviewed and approved by S&L and CECO.
Conclusions The detector installations meet the intent of NFPA 72E and as installed provide adequate fire detector response capability requiring no compensatory measures.
Recommended modifications to improve response capability are summarized from the reports as follows:
Total Number Number of Number of of Detectors Detectors Detectors Reviewed to be to be Relocated Added Report No. 1 160 6
1 Report No. 2 518 14 4
Report No. 3 564 9
2 Totals 1242 29 7
Commitments 1)
Prior to startup following the first refueling outage for Unit 2
(
the modifications detailed above will be implemented.
2)
A fire protection consultant will prepare guidelines to assist LaSalle Station in installing fire detectors.
These guidelines will be incorporated in'the modification procedure or maintenance procedure prior to July 1, 1984.
Distribution of copies of this letter and the attachments is as follows:
Ma'rch 9, 1984 Federal Express Original of' letter and one copy of the reports to Dr. A. Bournia, NRR.
Federal Express one copy of letter and one copy of the report to J.,G.
Keppler, Region III.
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E' s..*
H. R. Denton March 9, 1984 March 13, 1984 H.
R. Denton, nine (9) copies of letter and attachments J. G. Keppler two (2) copies of letter and attachments W. Guldemand-(NRC Resident Inspector) one copy of letter and attachments.
To the best of my knowledge and belief the statements contained herein and in the attachment are true and correct.
In some respects these statements are not based on my personal knowledge but upon information furnished by other Commonwealth Edison and contractor employees.
Such information has been reviewed in accordance with Company practice and I believe it to be reliable.
If there are any further questions regarding this matter, please contact this office.
Very truly yours, s3/9/g9 C. W. Schroeder Nuclear Licensing Administrator 1m Attachments l.
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