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Cocket No. 50 346 I,
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MEMORANDUM F0k: Cus C. La'nas, Assistant Director for Operating Peactors,
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Division of Licensing I
L. S. Pubenstein, Assistant Direi. tor for Core and Plant f*
FROM:
Systems, Division of Systems Integration f
CCNTINUED OPERAT!ON OF STAPTUP FEE 0 WATER PCMP - DA'/IS-i SUB.lE C T :
BESSE UNIT !. TAC N0. 57C23
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Enclo.ee is tr.e. uxiliary Systems Branch Saf ety Evaluation Repnrt (SER) k.
input concarning the can'inued operatinr c' the startup f aadwater puira E
installaticn cf a new SUF.P system is ccrplete as ider.tified
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(SlJFP) unti!
in the licensee's submittals d.ted October 18 and November 12, 1984
.' I The SEP input identifies the reed for a condition on the licente and the licensept coimiitment to hydrostatically test the high and moderate 'nergy lires to the requirements of ANS! B3'.1.
Based on the license condition, 3
hydrestatic testtrg, and tha low probability of a pipa break, we fird lirrited interim use of thc existing SUFP acceptable.
We are also enclnsinq cur SALR evaluation.
We consider cur wor-o.i TAC Number 57023 to be corplete.
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I L.S.hu5ektsiff,#}sistantDirector for Core and Plant Systems f!
Division of Systems Interration
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V. Fernerc O. Peer J. W1 1'on y
J. Fidaely J. Stolz A. DeAgazin M
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SAFETY EVALUATION REPORT CONTINtlED OPERATION OF STAPTtlP FEEDWATEk PUMP DAVIS-HESSE UNIT N0. 1 AUXILIARY SYSTEMS BRANCH I
in a Licensee Event Report ',t.ER) ho. H4-009 dated 'une 18, 1984, the licensee identified one high and three traderate energy lines in the Auxiliary feedwater These (AFW) pump rooms 237 and 238 whose failures have not bean analyzed.
are the startup feedwater pump (SUFP) discharge (high) ard suction lires j
iinat The and the turbin? plant Cooling wPter (W CW) piping which cools the SUFP.
SUFP is Iccated in AFW pump room 238 anti can jecporttize AFW purp 1-2 due to a pipe leak or break which includes the effe:ts of jet impingerant, pipe whip,
'looding, and envircrrental conditions.
The AFW pump 1-1 located in recm i37, l
can be jeopardized by flooding and high ombient temperature.
1 During a meeting on September 19, 1984, the licensee proposed to install a new
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SUFP system and documented this corrrnitntent in their submittal dated October 18, 1984 This new SUFP and associated niping and valves will he located outside I
cf the AFW pump rooms.
The new system should have sufficient flow capacit)
A to remove the decay heat f rom at least one steam generator follcwing design basis accidents, i
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}j Until th-new SUFP is operational, the licensaa has comnitted to the following j
interim measures.
The SUFP suction and discharge lines and the TPCW lines 1
3 will te isolated by neans of manual v.11ves located c.utside of the AFW pun o corn s q
d vlucinc rterational n.o&s 1, 2, at:d 3 when the SUFP is r?t in operation.
During stor tup and shistdown when the SUFP is used (oparattursl modes 1, ?, and 3), dr.
operator will be stn'.ioned in the AFW/SUFP area to monitnr system nperation.
M in the event of pipe leakage, tha operator will inreciately trip the SUFP
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lecelly or notify the ccetrol room operator to trip the pump and to isolate the SUFP.ind TPCW piping from outside thc AFW pump rrrms.
- he lirensee has also corm,it *ed to hydrostatically tee,t the his.h and ti.cderate a
energy lir.es to the reuuirerretit, cf ANS: B31.1.
This test is to de'"or'.:trate g
the intecrity uf the SUFP anti TPCW pipinq.
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Be t]Ill require that a license condition, concerriing thee.e interiri eredsures, The licer's condition should be in place prior to using the existirq SilFP.
address the tillowing items, h
l In operating modes I, 2 or 3, the SUFP suction and discharge lines and 7
1.
the AFW rcoms shall be isolated hv reans of manual valves the TPCW lines 1-in the piping will be 1
f rom outside of t ie AFW roc ~, ard the pre'isura f
verifiad to be less +han 275 psig.
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'l will be
!r. opera ting rrrdes *, 7, and 3 inc when using the SUFP, an a;wr.1'r r
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- tationed in the SUPF/AFW area to<renitor for p1po learage.
I:pon identi.
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+1 cation of pipe leakage, the operator will manually trip tha SUFD or notify the control roon operator to trip the 5t:FP and tn ite'a'.e the SUFP su'.tton and di; char ge lines 3rd the TPCW lines I
i SUFP system shall be ir,stellud prier to startup folicwino the 1986 3.
The new rrfueling, Cycle 6.
I licene,ee's sute.ittal deted Novo +.cer 12,19M, the licensee stated that In the tho hydrostitic testirq has been 'uccessfully completed for the SUFP suction The licenseo has ret ccmpleted the hjdro".tatic tasting and distniirgo linas.
of the IPfW lines.
E e ed on hav tro a licenso condition, sticcessfully hydros'.a' tcally tes t ieg tne
.e.sociated fliFP and TECW piping, and r.Ma low pret,]bility o' ;;ipe f ailure., wc limited operation of the en tstiro (UFP, artii ir,c.aliotinn of a conclud* tnt renotely located SUFP i; completa. 1s acceptable.
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TOLECO iiiDISDN i
Ao.c.o P. Cacass Docket No. 50-346
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w License No. NPF-3 Serial No. 1093 November 21, 1984 l
Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz Operating Reacter Branch No. 4 Division of Licensing United States Nuclear Regulatory Cc= mission i
Washingten, D.C.
20555 1
Dear Mr. Stolz:
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On September 19, 1984 a meeting was held between Toledo Edison (TED) and the Nuclear Regulatory Commission (NRC) Staff ccncerning the Auxiliary Feedvater (AFW) System. During the meeting we proposed a new Startup Feedvater Pump (SUFP) which would also serve as a diverse pcvered third A N source for the Davis-Besse Nuclear Pcwer Station Unit No. 1.
Per the NRC Staff's request, attached is a general system description (Attachment
)
- 1) and flev diagram (Attar.hment 2).
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This proposed SUFP vill provide i= proved flexibility in plant operation at low pcver levels and a means te supply water to the Steam Generators (SG) via the AFW system should the AFW pumps become unavailable. The initiation of AFV cperations via che new SUF? vill be manual.
The new SUFP system is still under conceptual disign and should any =ajor design problem be encountered, TED vill inform the NRC. The actual
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implementation schedule will be discussed with the Davis-Besse NRC Project Manager and be the subject of future ce=municacicus.
l Very truly ycurs, (I
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m RPC:GA3:lah attach =ents cc: DB-1 NRC Resident Inspector I
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- Docket N;. 50-316 Lic;nco NO. NPF-3 Serial No. 1093 November 21, 1984 PROPOSED SUFP GENERAL SYSTEM DESCRIPTION This descriptica provides the general design criteria for the proposed Startup Feedwater Pump (SUT?) for installation at Davis-Besse.
This non-safety grade, non-seismic pu=p will be installed in the turbine building and will have a sufficiently high flow rating to permit the pump to also be utilized as a 100% capacity, diverse powered, third auxiliary feedwater source.
Power for this electric motor driven SUTP will be obtained from either nor=al power or, in the event of a loss of of fsite pcwer, from the E=argency Diesel Generators (EDG).
Selection of the power source will be acceep-lished manually from the centrol rcom. The pump will be capable of being started manually from either the control room or locally.
During normal plant operation the suctica side of the pump will be lined up to the deaarator storage tank. Suction may be switched to the condensate storage tank by locally aligning the manual valves which are located in the turbine building near the proposed SUTP.
The nor=al pump discharge vill supply water to the inlet of the high pressure feedwater heaters (see attached flow diagram) and, thereby, to the =ain feedwater nomsles on the steam generators. When the pu=p is utilized as a third auxiliary feedwater source, it will be capable of supplying water to either steam generator.
Selection of one steam generator will be accomplished by locally operating the applicable =anual valves which will also be located in the turbine building near the SUFP.
Level control for the selected steam generator is acco=plished with an electric socor cperated control valve (see attached flev diagram) which can be operated from the centrol race er locally at the valve.
Pcwer for this control valve will be available frem either EDG by =anually selecting the power scurce at a cocor control center located in the turbine building near the SUT?.
The associated piping will be ANSI 331.1, non-safety grade, and non-seismic within the turbine building and will be classified as ANSI 331.1, safety grade, and seismic vichin the auxiliary building.
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Docket No. 50-346 1.tcense No. NI'F-3 j
4 Sortal No. 1093 I
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UNITED STATES y
g NUCLEAR REGULATORY COMMISSION
-l wAsmNGTON, D. C. 20555 e
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January 8,1985 Docket No. 50-346 Mr. Richard P. Crouse Vice President, Nuclear Toledo Edison Company Edison Plaza - Stop 712 300 Madison Avenue Toledo, Ohio 43652
Dear Mr. Creuse:
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SUBJECT:
AMENDMENT NO. 83 TO FACILITY OPERATING LICENSE NO. NPF-3; LICENSE CONDITION RELATING TO STARTUP FEEDWATER PUMP OPERATION The Comission has issued the enclosed Amendment No. 83 to Facility Ooerating License No. NPF-3 for the Davis-Besse Nuclear Power Station, Unit No.1.
This amendment consists of the addition of a new license condition which imposes
- three operational restrictions relating to the use of the startup feedwater pump in response to your application dated November 12, 1984 Copies of the Safety Evaluation supporting this amendment and the Notice of Issuance are enclosed.
Sincerely,
$Y%
Albert W, e Agazio, Pro,,.ct,anacer j
Operating Reactors Branch #4 Division of Li_ censing
Enclosures:
1.
Amendment No. 83 2.
Safety Evaluation 3.
Notice cc w/ enclosures:
See next page I
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M UNITED STATES y
NUCLEAR REGULATORY COMMISSION
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4 TOLEDO EDISON COMPANY J
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THE CLEVELAND ELECTRIC ILLUMINATING COMPANY t
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DOCKET NO. 50-346 4
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DAVIS-BESSE NUCLEAR POWER STATION UNIT NO. 1 i
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AMEN 0 MENT TO FACILITY OPERATING LICENSE I
J Amendment No.33 j
License No. NPF-3 1.
The Nuclear Regulatory Comission (the Comission) has found that:
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A.
The application for amendment by the Toledo Edison Cocoany and The Cleveland Electric Illuminating Company (the licensees) dated l
November 12, 1984, cceplies with the standards and recuirements of i
the Atemic Energy Act of 1954, as amended (the Act) and the i
i Comission's rules and regulations set forth in 10 CFR Chapter I; 3.
The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Comission;
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There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted I
in compliance with the Comission's regulations; 1
D.
The issuance of this amendment will not be inimical to the common
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l defense and security or to the health and safety of the oublic; and l
E.
The issuance of this amendment is in accordance with 10 CFD Part 51 of the Comission's regulations and all apolicable recuirements have been satisfied.
i Accordingly, Facility (Operating License No.. NPF-3 is hereby amended by i
2.
adding paragraph 2.C. 3)(t) to read as follows:
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2 Toledo Edison shall operate the Star +,up Feedwater Pump ISUFP) System with the following operational restrictions:
1.
Toledo Edison will station an operator in the Startup Feedwater Pump / Auxiliary Feedwater Pump (SUFP/AFW) area during operation of the SUFP to monitor SUFP/ Turbine Plant Cooling Water (TPCW) pioino status in the AFW Pump Rooms.
In the event of SUFP/TPCW pipe leakage, the operator will trip the SUFP locally or notify the Control Room to trip the SUFP, and isolate the SUFP/TPCW piping, f
2.
Toledo Edison will isolate and maintain isolation outside the SUFP/AFW area of the SUFP suction, discharge, and turbine plant cooling water piping, when the SUFP is not in operation (Modes 1, 2 and 31 3.
Toledo Edison will install a SUFP, associated piping, and valves, to remove the hazards to the AFW pumps before commencing Cycle 6.
3.
This license amendment is effective as of its date of issuance.
FOR THE NUCLEAR REGULATORY COPMISSION
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Gus C. Lainas, Assistant Director for Operating Reactors Division of Licensing Cate of Issuance:
January 8,1935 I
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UNITED STATES 0
[h e([,i NUCLEAR REGULATORY COMMISSION g p ^nu f. j E
W ASHINGTON. D. C. 20555 gv.....f SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMEN 0 MENT NO. 83 TO FACILITY OPERATING LICENSE NO. NPF-3 TOLEDO EDISON CCMPANY AND THE CLEVELAND ELECTRIC ILLUMINATING COMOANY DAVIS-BESSE NUCLEAA 00WER STATION, UNIT NO. 1 00CKET NO. 50-346 1.0 Introduction By letter dated November 12, 1984, the Toledo Edison Comoany submitted an application to amend Facility Operating License No NPF-3 for the Davis-Besse Nuclear Power Station Unit No.1.
The proposed amencment would add a new license condition which would allow for the use o' the startuo feedwater pump (SUFP) for the duration of Cycla 5 operation whenever the facility is in coerational Modes 1, 2 or 3.
The license condition also adds certain procedural recuirements to provide compensatory measures and recuires that Toledo Edison Comoany install a new SUFP and associated system comoonents to permanently remove the harard to the auxiliary feedwater ( AFW) oumps 'rnm SUFP coeration.
This installation is to be completed orior,to Cycle 6 coera*. ion.
2.0 Discussion and Evaluation In a Licensee Event Report (LER) No.84-009 dated June 18, 1984, Toledo Edison Company identified one high and three moderate energy lines in
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the AFW pump rocms 237 and 238 whose failures have not baan analyzed.
These lines are the SUFP discharce (high) and suction lires and the turbine plant cooling water (TpC'M piping which cools the SUFo.
The SUFP is located in AFW pump room 238 and can jeopardize AFW pu o 1-2 due to a pice leak or break which includes the effects of jet impingement, odoe whip, flooding, and environmental conditions. The AFW pump 1-1, located in rocn 237, can be jeopardized by flooding and hign ambiant temperature.
During a meeting on September 19, 1984, Tolede Edison preocsad to install a new SUFP system and documented this ccmmitment in their submittal dated October 18, 1984, and Never.ber 21, 1?E4 This new SUFP aad associated piping and valves will be located outside of the AFW pu p recms. The new system should have sufficient flow capacity to re ove the decay heat frcm at least one steam generator following design basis accidents.
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i 1 Until the new SUFP is operational, Toledo Edison company has comitted i
to the following interim measures. The SUFP suction and discharge lines
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and the TPCW lines will be isolated by means of manual valves located l
j outside of the AFW pump rooms during operational Modes 1, 2 and 3 when the SUFP is not in operation.
During startup and shutdown when the SUFP l
is used (operational Modes 1, 2 and 3), an operator will be stationed in jl the AFW/SUFP area to monitor system operation.
In the event of pipe i
leakage, the operator will imediately trip the SUFP locally or notify l
the control room operator to trip the pump and to isolate the SUFP and x
TPCW pioing from outside the AFW pumo rooms.
l Toledo Edison has confimed that hydrostatic testino of the high and i
moderate energy lines to the recuirements of ANSI B31.1 has been completed l
to demenstrate the integrity of the SUFP and TPCW piping, i
1 We will require that a license condition, concerning these interim j
measures, be in place prior to using the existing SUFP.
The license 4
condition should address the following items.
1.
In ooerating Modes 1, 2 or 3, the SUFP suction and discharge lines t
and the TPCW lines in the AFW rooms shall be isolated by means of manual valves frcm outside of the AFW roons and the pressure in the oiping will be verified to be less than 275 psig.
I 2.
In operating Modes 1, ? or 3 and when using the SUFP, an operator will be stationed in the SUFP/AFW area to monitor for pipe leakane. Upon identification of pipe leakage, the ocerator will 1
manually trip the SUFP locally or notify the control ronm operator i
to trip the SUFP and to isolate the SUFP suction and discheroe s
l lines and the TPCW lines.
1 3.
The new SUFP system shall be installed prior to startuo following l
the 1986 refueling, Cycle 6.
In Toledo Edison's submittal dated November 12, 1984, thev stated that the hydrostatic testino has been successfully complatad for the SUFP l
suctinn and discharoe lines. Toledo Edison has confirred that hydrostatic testing of the TPCW lines has also been completed (Tolado Edison Comoany letter dated December 21,1984).
i Based on havine a license condition, successfully hydrostatically j
testing the associated SUFP and TPCW piping, and the low probability of r
j pipe failure, we conclude that limited creration of the existing SUFP, until installation of a new remotely located SUFP is ccmplete, is i
f acceptable.
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3.0 Environmental Coasidaration j
An Environmental Assessment and Finding of No Significant Imcact has i
been issued for this amendrent.
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4.0 Conclusion We have concluded, based on the considerations discussed above, that:
will not be endangered by operation in the proposed manner, and (2) public (1) there is reascnable assurance that the health and safety of the i
such l
activities will be conducted in compliance with the Comission's regulations t
and the issuance of this amendment will not be inimical to the comon 1
defense and security or to the health and safety o' the public.
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i Dated: January 8,1985 i
l Principal Contributor: John Pidgely 1
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