B11625, Advises That Util Plans to Implement Encl Curves, Representing Planned Means for Compliance w/10CFR50,App G Between 14.0 & 22.0 EFPY When Current Curves for Heatup & Cooldown Become Valid at 14.0 EFPY

Advises That Util Plans to Implement Encl Curves, Representing Planned Means for Compliance w/10CFR50,App G Between 14.0 & 22.0 EFPY When Current Curves for Heatup & Cooldown Become Valid at 14.0 EFPY

ML20132E509
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	07/17/1985
From:	Opeka J CONNECTICUT YANKEE ATOMIC POWER CO.
To:	Zwolinski J Office of Nuclear Reactor Regulation
References
B11625, NUDOCS 8508020005
Download: ML20132E509 (5)

Text

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CONNECTICUT YANKEE ATOMIC POWER COMPANY B E R L I N, CONNECTICUT P o Box 270 HARTFORD. CONNECTICUT 06141-0270 T EL E PHONE 2 "5 0 July 17,1935 Docket No. 50-213 B11625 Director of Nuclear Reactor Regulation ~

Attn. Mr. John A. Zwolinski Operating Reactors Branch #5 U. S. Nuclear Regulatory Commission Washington, D.C. 20555

References:

1) 3. F. Opeka letter to J. A. Zwolinski, dated June 11,1935.

{ 2) 3. F. Opeka letter to J. A. Zwolinski, dated I j June 27,1985.

f Haddam Neck Plant Proposed Revision to Technical Specifications Pressure / Temperature Limit Curves in Reference (1), pursuant to 10CFR50.90, Connecticut Yankee Atomic Power 3 Company (CYAPCO) proposed to amend its Operating License, DPR-61, by l revising Section 3.4, Combined Heatup, Cooldown and Pressure Limitations, l Figures 3.4-1, 3.4-6, and 3.4-7 and pages 3-5 and 3-6 of the Technical Specifications. Reference (2) provided additional information requested by the Staff to support the proposed amendment. Because the current curves for heatup and cooldown will shortly be outdated, CYAPCO plans to implement attached revised curves, which represent our planned means for compliance with 10CFR50, Appendix C between 14.0 and 22.0 EFPY, when the current curves for heatup and cooldown become invalid at 14.0 EFPY or no earlier than July 20, 1935. In implementing these curves CYAPCO will abide by the operational restrictions imposed and understands they represent our compliance with 10CFR50, Appendix G. Upon your review and approval of the pending proposed amendment request, as forwarded in Reference (1) and revised by Reference (2) ,

CYAPCO will formally incorporate the amendment into the Haddam Neck Plant Technical Specifications.

8508020005 850717 PDR ADOCK 05000213 \

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It should be noted that the revised curves provided in Reference (2) deleted the 2 individual curves on each figure (Figures 3.4-1, 6 and 7) for the residual heat removal (RHR) and reactor coolant pumps. These curves provide operational guidance, but are not directly applicable to Appendix G compliance. Ultimately, we request that the Reference (2) curves be issued as the formal license amendment. For the interim period, we will abide by the attached proposed figures.

Very truly yours, CONNECTICUT YANKEE ATOMIC POWER COMPANY

3. F. Opeda U Senior Vice President

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COMECEICLT YRNKEE LIfi1T CURVE IDR !!YDROSTATIC JED IIAK TESTING

~ ~ ~ ~

APPLICABLE FUR 22.0 g mu,Tn'E FULL POER YEARS.

10 F, P

(T'RROR E ERROR 60 PSIG) q . -. ._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

i--2600: - - - - - - - - - - . - -

- - - - - - - ~ - - - -

-2400 - - - - - - --

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)

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- SYSTDI HYDROSTATIC TEST - f

-- ---- ~

_l PRESSURE (P=2160) e -2000 /--- .

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g . . _SY.STD1 LEAKAGE TEST . ~ ^

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g H1800 - --

5i-

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. MINIMUM __ MINIFU1. SYSTD1_;

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R b 400- i E3 U . p

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i A0n M7LXIMUM PRESSURE (P = 350 PSIG)  :

FOR-RESIDUAL-HEAT-RD%NAL ic-40n

+

SYSTE?EOPERATIQi__.__ _ /

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t. ----

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3 0 0._._ .

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. Figure 3.4-1

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CQEECTICUT YANKEC REAC'IOR COOIANT SYSTEM IIrATUP LIMITATICES FOR 22.0 IVE IllLL POER YEARS.

(T = 10 ,P ERROR ERROR = 60 PSIG)

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-2400 - - - - - - - - - . - - -

l

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p .-

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INDICT.TED REACIOR COOLANT TDTEPATUEE ( F) ___:_...__

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i Figure 3.4-8

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• 00t2CCTICUT YANKEE RC7CIOR 000IRTT SYSTDI COOImN

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LIMITATIONS IDR 22.0 m;nVE FULL POWER YEAPS.

(T = 10 P ERPOR = 60 PSIG)

ERROR i

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i 1

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- _ . - - - - - - - - - i r

._ 2400. - - - -

d 200 .

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<n : .- _ - . . . . . - . _ . . . . . - -. ..

180n Ei RATE _OF g00 F/HR_DOWN._'IO_200_F g;. . .

_ _ _ . . . _AND 30 IR 'IO 70 F.

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. ,  ; OPFPATING 2CNF- ' ' ' ~;

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j 'MAXHui PRESSURE (P = 350 PSIG)

---~FOR~ RESIDUAL HEM' P_W~ ~~~

i 400 J WSTDi-CPERATICN y 7

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: 9nn ucrr- ~:' - - / '

2 2. EE Eh _MwP!CM PRESSURS-4P m-300 PSIG)- FOR -

REACIOR COOLANT TGIP Oruvu'lCN

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'_g , _ ' -

l i

• i INDICATED REJCIOP. C00INTT TFSEPATUPE ( F) -_._.-_:_.....

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.:.--..__.--._...-.--.:_- . . . . _ - . . =

Figure 3.4-9

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