ML19345A426
| ML19345A426 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 01/24/1963 |
| From: | Lowenstein R US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Coe R YANKEE ATOMIC ELECTRIC CO. |
| Shared Package | |
| ML19345A427 | List: |
| References | |
| NUDOCS 8011210383 | |
| Download: ML19345A426 (1) | |
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UNITED STATES (N-ATOMIC ENERGY COMMISSION m;
L-PK WASHINGTON 25. D.C.
%,,, f JC i 4 1953 Docket No. 50-29 Change No. 31
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Distribution H. J. McAlduff Formal Yankee Atomic Electric Company E. G. Case.
Suppl.
441 Stuart Street H. Shapar LB-LGR reading Boston 16, Massachusetts P. A. Morris-2 E. E. Hall Attention:
Mr. Roger J. Coe D. C. Clark Vice President E. Tremmel H. Steele
=t Gentlemen:
Doc. Room This refers to your request dated December 21, 1962 for AEC authorization of Proposed Change No. 31.
The Proposed Change
~~._m requests a temporary waiver of operating restriction D.2.d.(6) of the Technical Specifications attached as Appendix "A" to J[
License No. DPR-3 in order to perform a test using boric acid in the main coolant system in higher concentrations than presently permitted during operation of the reactor under License No. DPR-3.
We have reviewed Proposed Change No. 31 and have found that Proposed Change No. 31, under the conditions proposed and as modified hereunder, does not present significant hazards considerations not described or implicit in the hazards summary report, and that there is reasonable assurance that the health and safety of the public will not be endangered. A copy of our related hazards analysis is enclosed.
In view of the foregoing, operating restriction D.2.d.(6) of the Technical Specifications attached as Appendix "A" to License No. DPR-3 is temporarily waived, and Yankee Atomic
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Electric Compt..y is hereby authorized to conduct a test of the l
use of boric acid in the main coolant system in accordance with l
its request dated December 21, 1962, entitled Proposed Change No.
31, subject to the following additional condition:
Before Gerating at power levels in excess of 485 Mw thermal during the test, Yankee shall make in-core instrumentation measurements at
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that power level with boric acid in the primary system.
On the b
l basis of these measurements, Yankee shall determine the steady i
state and transient DNB ratios at power levels up to 540 Mw thermal with the amount of boric acid in the primary system pro-posed to be used in the tests at these power levels, and shall
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not proceed to a power level where these ratios would be less than those presented in the hazards summary report for 540 Mw thermal e,,.
operation.
i Sincerely yours, 8011210 3 3 e w [ Director CE**&
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Enclosure:
M Division of Licen i g'and Regulation
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As stated above. DL6R' DL6Ih,(g DL g EGuas'c f kDirectorgygr SD'.!asonkdk HGashc TI d
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