ML17258B010
| ML17258B010 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/29/1981 |
| From: | Maier J ROCHESTER GAS & ELECTRIC CORP. |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| TASK-04-02, TASK-4-2, TASK-RR NUDOCS 8105050680 | |
| Download: ML17258B010 (4) | |
Text
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ACCESSION NBR<8105050680 DOC,DATE> 81/04/29 NOTARIZED:
NO DOCKET ¹ FACIL's50 244 Rober t'tnmet" Gfnna Nuclear Plant~ Unit ii Rochestei G
05000244 AUTH~ NAMg" AUTHOR AFFILI'ATION MAIKR'e J'e 6'e Rochester Gas 8 Electr)c Corp'EC IP ~ NAMB REC'IPXENT'FFILIATION CRUTCHFIKLD~D, Operating. Reactors Branch 5:
SUBJECT:
Responds'o 810324 evaluation of SEP Topic IV 2~. "Reactivity Control Sys.""Agrees w/conclusion that fuel design lfm3ts would not bet exceeded Col simultaneous withdrawal or overlap.;
of two-control.rod banks;Supplies addi refs for bases; DISTRIBUTION CODE':
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Ir gzzzzam zest y'/llglfISlE ROCHESTER GAS AND ELECTRIC CORPORATION j r o
89 EAST AVENUE, ROCHESTER, N.Y. 14649 JOHN E.
MAIER VICE PRESIDENT TCLCPHONE iRCs COOr. 7Ia 546.2700 April 29 g 1981 Director of Nuclear Reactor Regulation Attention:
Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch 45 U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
SEP Topic IV-2, Reactivity Control Systems R.
E. Ginna Nuclear'ower Plant Docket No. 50-244
Dear Mr. Crutchfield:
This letter is in response to your evaluation of Ginna SEP Topic IV-2, Reactivity Control Systems, dated March 24, 1981 (received March 30, 1981).
We agree with the conclusion of the assessment, that fuel design limits would not be exceeded for the
- 1) simultaneous withdrawal of two control rod banks and 2) over-lap of two banks at other than the design value.
- Thus, General Design Criterion 25 is met insofar as electrical failures within reactivity control systems are concerned.
We do feel that, in order to more specifically define the bases for these conclusions, additional references not provided in our January 19, 1981 letter, but subsequently discussed, should be specified in the assessment.
These references are:
1)
Technical Supplement Accompanying Application to Increase
- Power, Section 14, February, 1971.
2)
WCAP-7778, Solid State Rod Control System Full
- Length, by A. Blanchard and D. N. Katz.
3)
WCAP-8976, Failure Mode and Effects Analysis (FMEA) of the Solid State Full Length Rod Control Sequence, by W. E. Shopsky.
Based on the conclusions in the NRC assessment, and our editorial comments, this topic can be assumed completed.
Very truly yours,
]/o hn E. Maier
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