ML20147G431

Forwards Suppl Info & Changes to Reload Application,Per NRC 781013 Request

ML20147G431
Person / Time
Site:	Calvert Cliffs
Issue date:	10/17/1978
From:	Lundvall A BALTIMORE GAS & ELECTRIC CO.
To:	Reid R Office of Nuclear Reactor Regulation
References
NUDOCS 7810230246
Download: ML20147G431 (3)

Text

__

...., 3 BALTIMORE GAS AN D ELECTRIC COMPANY h

GAS AN D ELECTRIC BUILDING BALTI MOR E, MARYLAN D 21203 ARTH UR E. LUNDVALL,dR.

WCC PMf SIDEN T Suppsv Office.of Nuclear Ranctor Regulation U.S. Nuclear Regulatory Commission

]

Washington,-D. C.

20555 Attn:

Mr. Robert W. Beid, Chief Operating Beactors Branch #h Division of Operating Reactors

Subject:

Calvert Cliffs Nuclear Power Plant Unit No. 2, Docket No. 50-318 Supplementary Information on Reload Application Request

Reference:

(a) BG&E letter dated 7/26/78 from Lundvall to Reid, Request for Amendment.

(b) BG&E letter dated 10/6/78 from Lundvall to Reid, Supplement to Reload Application Gentlemen:

The folloving changes to the information submitted by References (a) and (b) were provided to your Mr. E. L. Conner, Jr. via telecopier on October 13, 1978 and are formally submitted herein by way of confirmation.

Changes to Reference (a):

In addition to the Technical Specification changes already proposed by Reference (a), please add provisions for load-follow oyerations as follows:

j T/S page I (bottom), Index - add " Load Follow Operation - Page 1-6";

T/S page 1-6 (bottom) - add new paragraph:

" Load Follov Operation 1.29 Repeated daily power level changes of more than 10 percent involving insertion of control rods beyond the long term insertion J imits..

l T/S page 3/4 2-4 (page 70 of Reference (a) ) - change per attached Figure to. provide for load follow operation

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0% g0 L

7(r/0 2 3 0 4 W h'

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. T/S page 3/4 2-2 (page 85 of Reference (a) ) - add in parentheses after paragraph h.2.1.h.b.2:

"(When in the load follow operation mode, an uncertainty factor of 1.10 applies. )"

Changes to Reference (b):

Enclosure (1) page 3 - change the last paragraph of the response to Question No. 1 to read as follows:

"b.

Conservatism in LCO:

The Unit II Cycle 2 ECCS analysis was performed at a peak linear heat generation rate (PLHGR) of 15 5 kv/ft.

Based on an assessment of the conservatism implicit in this analysis, it is estimated that the PLHGR could be increased to 15 7 kv/ft (a 1.3 percent increase) without violating the 10 CFR 50.h6 acceptance criteria."

For your information, our latest schedule provides for Unit 2 to start its approach to criticality late on October 21 or early on October 22, 1978. We greatly appreciate your efforts in helping us to achieve this goal.

Very truly yo

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cc - J. A. Biddison, Esquire G. F. Trowbridge, Esquire Messrs. E. L. Conner, Jr., NRC P. W. Kruse, CE vr

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