ML20042A050
| ML20042A050 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 03/11/1982 |
| From: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-SSINS-6820 IEB-80-06, IEB-80-6, NUDOCS 8203230021 | |
| Download: ML20042A050 (2) | |
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BALTIM OR E GAS AND ELECTRIC CHARLES CENTER P.O. BOX 1475 BALTIMORE, MARYLAND 21203 ARTHUR E. LUNDVALL. JR.
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March 11, 1982 o'
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Office of Inspection and Enforcement LT fjg ~9
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U.S. Nuclear Regulatory Commission 21982a. 't t::.Nl?[iWTit
T tam Region 1 631 Park Avenue J
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8 King of Prussia, PA 19406 u)
A Attention:
Mr. Ronald C. Haynes, Director Subj ect : Calvert Cliffs Nuclear Power Plant Unit Hos. 1 and 2, Docket Hos. 50-317 and 50-318 IE Bulletin 80-06, ESF Reset Controls
Reference:
a) NRC letter dated March 13, 1980 to Mr. A. E.
Lundvall, Jr.
Transmitting IE Bulletin 80-06 b) BG&E letter dated June 17, 1980 from Mr. A. E.
Lundvall, Jr. to Mr. Boyce H. Grier.
Gentlemen:
In reference a, IE Bulletin 80-06 requested us to review the design of all systems serving safety related functions at the schematic level to determine whether or not, upon reset of an ESF actuation signal, all safety related equipment remains in its emergency mode. An actual test was also required by the subject Bulletin in order to verify the installed instrumen-tation and controls were consistent with the reviewed schematics. The results of our design review along with our schedule for completing the required tests were submitted in reference b.
All testing required by the bulletin is now complete and the results are hereby submitted.
These tests were performed during the latter part of 1980 on Unit No. 1, and during the early part of 1981 on Unit No. 2.
After preliminary review of the tests by the onsite NEC inspector, additional testing was required. This second round of tests were completed by the end of July,1981 for both Calvert Cliffs units.
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Mr. Ronald C. Haynes March 11, 1982 Tests were performed on all safety related equipment receiving ESF actuation signals and the installed instrumentation and controls vere verified to be consistent with the reviewed schematics except as discussed below.
1.
Each Low Pressure Safety Injection (LPSI) pump has an BAS contact that trips the pump during recire actuation. Accord-ing to the schematics, after reset of the RAS signal, each pump will remain off but we did not test this feature.
2.
Each Containment Spray Pump starts on a CSAS signal and accord-ing to the schematics, each pump will remain running after CSAS reset. During the tests, pumps 11, 12, 21, and 22 all remained running after reset of the actuation signal. The handsvitch for pump 12, however, was inadvertantly matched to the CSAS mode. Since pumps 11, 21, and 22 remained running after reset-of the CSAS signals without matching the associated handsvitches as predicted by our echematic review, we conclude that pump 12 would have performed similarly.
3 High Pressure Safety Injection Pumps (HPSI) 11, 12, 13, 21, and 23 vere tested and the results were in accordance with that predicted by our schematic review. HPSI' pump No. 22 was out of service during the testing, but we conclude that it would have operated similarly to the other five HPSI pumps.
h.
Salt Water Air Compressors did not remain running after reset of the ESF actuation signal. This is because the compressors are a backup to the Inetrument Air Compressors.
If the Salt Water Air Compressors had been required and their handsvitches in the start mode prior to the ESF actuation, the compressors would have remained running after reset of the ESF actuation signal.
This response completes all required work for IE Bulletin 80-06.
VerytruJyyours,'
f)'.E.Lun,vall,Jr.
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.A Vice President, Suppy ec: Division of Reactor Operations Inspection Office of Inspection and Enforcement U.S. Nuclear Regulatory Commissicn Washington, D.C.
20555 J. A. Biddison, Esquire G. F. Trowbridge, Esquire D. K. Jaffe, NRC