ML20212D954
| ML20212D954 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 12/31/1986 |
| From: | Tiernan J BALTIMORE GAS & ELECTRIC CO. |
| To: | Thadani A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8701050182 | |
| Download: ML20212D954 (3) | |
Text
c s i-BALTIMORE GAS AND ELECTRIC CHARLES CENTER R O. BOX 1475 BALTIMORE, MARYLAND 21203 JOSEPH A.TIERNAN vice PatsfDENT NucLEAm ENERGY December 31,1986 U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D. C. 20555 ATTENTION:
Mr. Ashok C. Thadani, Director PWR Project Directorate #8 Division of PWR Licensing-B
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 Safety Parameter Display System Quarterly Report
REFERENCES:
(a)
Letter from Mr. F. 3. Miraglia (NRC), to Mr. 3. A. Tiernan (6C&E),
dated September 30, 1986, Extension of Safety Parameter Display System Operational Deadlines Gentlemen:
In granting our request for an extension to the operational deadlines for the Safety Parameter Display System (SPDS), Reference (a), you required us to provide quarterly progress reports beginning January 1,1987.
Attached is the first of these reports covering the progress of the SPDS project for the fourth quarter of 1986. As you specified in Reference (a), we are providing:
our progress in establishing the fully operational SPDS for each unit, n
the status of the SPDS sof tware development and testing, and the identification and status of the critical path item.
Please contact us if you have any questions regarding this matter.
Very tr yours?
8701050182 861231 PDR ADOCK 05000317 f
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Mr. Ashok C. Thadani December 31,1986 Page 2 cc:
D. A. Brune, Esquire J. E. Silberg, Esquire S. A. McNeil, NRC T. Foley, NRC
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ATTACHMENT SAFETY PARAMETER DISPLAY SYSTEM PROGRESS REPORT - 4TH QUARTER 1986 i
A.
SPDS Progress 1.
A Major project milestone was reached on November 25 with successful completion of the plant computer factory acceptance test on an increased capacity computer.
The anticipated increases in performance for this computer were realized and sof tware migration from our original computer to this one was successful.
2.
More personnel were added to SPDS development:
The vendor increased his team of personnel dedicated to SPDS.
The vendor hired a consultant for additional assistance.
One programmer from BG&E was added to the team.
3.
In November, BG&E personnel from engineering and operations visited the venJor to review SPDS logic, displays, and the man machine interface.
Progress shown by the vendor was acceptable.
B.
Status of Sof tware Development and Testing 1.
Code was written for all Critical Safety Functions (CSFs) and the vendor has developed 150 test cases.
2.
Internal vendor tests are expected to start January 1,1987 and run for three weeks. Following a week of repairs, the SDDS factory acceptance test is expected to start by the end of January.
3.
Additionally, work was begun by BG&E on development of integrated accident based test scenarios.
C.
Critical Path Item Computer capacity has been identified as the cr.itical path item. This is despite anticipated gains in performance achieved by obtaining a more powerful machine. Demonstration of adequate capacity cannot be completed until system sof tware, SPDS software, and the communications interface to the Data Acquisition System are integrated onsite at Calvert Cliffs. This demonstration is expected by February 1,
1987.
Risk in this area is being mir *mized by development of contingency plans to further increase capacity beyond the current configuration.
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