ML17257A532
| ML17257A532 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 08/10/1981 |
| From: | Maier J ROCHESTER GAS & ELECTRIC CORP. |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| GL-81-14, NUDOCS 8108170264 | |
| Download: ML17257A532 (5) | |
Text
REOULATOfINFORMATION'OISTRIBUTION TEM (RIBS)
~I ACCESSION NBR? 81 081 70264-DOC ~ DATEA: 81/08/10.
NOTARIZED): NO" DOCKKA" 0 FACIL<:50 244 Rober t Emme't>> GinnaI Nucl eat
>> Plant~Unit 1 r. Rochestei s G.
05000244 AUTHgNAMEl AUTHOR'F F ILI AT'ION MAIKR"gJ', E.',
Rochester Gas,L Electric Corp=.
RECIP ~ NAMKl RECIPIENT"'FFIL'IATION CRUTCHFIELD'gD, Operating Re'actors 8'ranch 5
SUBJECT:
- Forwards" cor rectionI to 810627 response to Generic'tr, 81"14 '.
Corre'ction, reflects re'cent: ch'ange. to Te'ch Spec requirement".
forI condensatet water'ISTRtIBUT10N CODEt:. A028S'OPZESI RECEIVED'ITR
'NCL
'IZERI
'ITLEt:
Sei smi c Rev i ek for>> SEP.
P l an ts; NOTES: 1 copy: SEP Sect; Ldr ~
05000244 fKG F I 0f>>
RECIPE ENTl ID< CODE'/NAMEI ACTION!:
ORBl 05 BC) 04 INTERNALS'QUIP. QUAL>>
BR'I'EOSC IENCES 17 I LE~
12'OPIES LT7R ENCL<
7 7
f>>
1 1<<1 2
2 1
0f RECIPIENT'D CODE'/NAME<
GKN ISSUES BR16'YD/GEOi BR 18 NRC: PDR~
02'.
ORA ASSESS BR SEP" BR f4 COPIES'TTRl ENCL<
1 0"
2'"
1 1
1 0.'
f~
EXTERNAL':
11 16 16 1
1 LPDR'TIS 03 1
1.
1 1
j,U( /0 1981 TOlTAL< NUMBER'~ OF COPIES'EQUIRED:"<<LP'~TR'NCL<
4' Ct t'
t EP E$/ff 8'CT ROCHESTER GAS AND ELECTRIC CORPORATION o
89 EAST AVENUE, ROCHESTER, N.Y. 14649 JOHN E.
MA IER VICE PRCSIDCNT TCLCPHONC ARCA COOC TIe 546-2700 August 10, 19 81 Director of Nuclear Reactor Regulation Attention:
Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch No.
5 U.
S. Nuclear Regulatory Commission Washington, DC 20555 Ltsb teauW}{~
KRISS
Subject:
Seismic Qualification of Auxiliary Feedwater Systems (Generic Letter No.
81-14)
R.
E. Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Crutchfield:
This letter provides a minor correction to our response dated July 27, 1981 to Generic Letter No. 81-14.
Please replace page 3 of our previous response with the enclosed revision.
The correction reflects a recent change to the Technical Specification requirement for condensate water.
Very truly yours, 0
Jo n E. Maier I 8i08170264 8i08i0 (P
PDR A'DOCK 05000244'DR
The AFW system has two sources of supply.
- Normally, the suction of the system is aligned to the two con-densate storage tanks which contain a minimum of 22,500 gallons of condensate as required by the Technical Specifications.
This supply is=sufficient to remove decay heat for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> after reactor scram from full power.
Upon depletion of the condensate
- supply, ad-ditional condensate water may be available from the condenser hotwell depending upon plant conditions.
Alternatively, the suction of the auxiliary feedwater pumps is aligned to the service water system which provides an almost infinite supply of cooling water from Lake Ontario.
The discharge path of the three auxiliary feedwater pumps is from the pumps to penetrations in the feedwater lines outside of the containment, through the feedwater lines to the steam generators.
Fluid Systems The normal suction path piping of the AFW system (from the condensate storage tanks) is not seismically designed nor is the condenser hotwell.
- However, the service water piping to the suction of the pumps and the service water ti system piping.in its entirety:is seismic Class I design
[Ref. I).
As described in the Seismic Upgrade
- Program, the seismic review of the AFW system suction and dis-charge piping is scheduled for completion in early 1983.
The service water system seismic review, which includes all piping within the power block, is scheduled for completion in late 1982.
The portion of the feedwater
~a-l I, 2