ML20062E085

Forwards Safety Evaluation Supporting Licensee 820622 Request for Relief from Certain ASME Boiler & Pressure Vessel Code Section XI Requirements Re Hydrostatic Testing

ML20062E085
Person / Time
Site:	Davis Besse
Issue date:	07/29/1982
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Crouse R TOLEDO EDISON CO.
Shared Package
ML20062E086	List: ML20062E085 ML20062E087 ML20062E092
References
NUDOCS 8208060331
Download: ML20062E085 (4)

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NRC PDR L PDR ORB #4 Rdg Docket No. 50-346 DEisenhut 0 ELD AE0D IE Hr. Richard P. Crouse ACRS-10 ORAB Vice President, Nuclear Toledo Edison Company ADe Agazio Edison Plaza RIngram TBarnhart-4 300 Madison Avenue Toledo, Ohio 43652

Dear Mr. Crouse:

RDiggs

SUBJECT:

INSERVICE INSPECTION AND TESTING PROGRN1 - RELIEF FROM CERTAIN HYDROSTATIC TESTING REQUIREMENTS i

The Davis-Besse Nuclear Power Station Inservice Inspection and Testing Progran for the initial 120 aonth interval was submitted on May 15, 1980, and was amended and supplanented by Toledo Edison Company letters dated December 15,1980, March 31,1981, June 10,1981 and February 16, 1 982. The NRC staff evaluation of Sections 3 and 4 of that program 4

was provided with our letter of May 5,1982 By that letter, the i

Commission also granted relief from certain ASME Boiler and Pressum Vessel Code, Section X1, requirements.

Toledo Edison Company, by letter of June 22, 1982, requested further relief from the ASME Code Section X1, requirements.. Specifically, relief-is requested from the requirement to perfonn a hydrostatic test on certain piping system welds that with be added to the auxiliary feedwater system during the steam generator repair program. The ASME Code hydrostatic test requires pressurization at 1313 psig at a temperature between 130 and 200'F with a 10 minute hold time. Toledo Edison Company has proposed an alternate pressure testing program.

'~nis alternate test would require:

a.

Hydrostatic test of the sixteen riser subassemblies at 1313 psig for 10 minutes prior to installation, and b.

llydrostatic test of the completed repair systen at 929 psig (1.08 times the operating pressure) and operating temperature with a four hour hold time.

Toledo Edison Company has detennined that the Code required test is impractical and that the proposed reduced pressure test offers a more meaningful evaluation of the system.

In addition, there will be a substantial savings in personnel radiation exposure, manpower, and downttime.

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!fr. Richard P. Crouse We have evaluated the request for relief contained in your June 22, 1982 letter and agree with your detemination that it is impractical for you to meet the Code requirements. We agree that the alternate testing that you have proposed is acceptable.to provide assurance of structural integrity. We have detemined that life, property or the common defense and security will not be endangered as a result of not perfoming the examination in accordance with the ASIlE Code. We have reached the conclusion that relief should be granted as authoriged by 10 CFR 50.55a (g)(6)(1), and that granting such relief is in the public interest giving due consideration to the burden upon Toledo Edison Company if the requirmients were imposed.

Therefore, pursuant to 10 CFR 50.55a(g)(G)(1), we grant the requested relief from the ASilE Code required hydrotest and accept, as a substitute, your proposed tests as described in your letter of June 22, 1982 It is understoodythat Toledo Edison Company takes no exception to the Cdde required non-destructive examination of the 94 new welds and 8 supports. Toledo Edison Company remains committed to perfoming a hydrostatic test per Section XI requirements prior to the end of the initial 120-conth inspection interval.

The Safety Evaluation and a copy of the Federal R_ogister Notice is enclosed.

Sincerely,

,. vwolSIGNEDB44 J0ffN F. STOL47,

John F. Stolz, Chief Operating Reactors Branch #4 Division of Licensing

Enclosures:

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Safety Evaluation 2.

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Hr. Richard P. Crouse ORAB Vice President, Nuclear ADeAgara;o,jj Toledo Edison Company Edison Plaza RIngram-TBarnhart-4 x,,

300 Madison Avenue OPA Toledo, Ohio 43652 SECY

Dear Hr. Crouse:

RDiggs f

SUBJECT:

INSERVICE fNSPECTION AliD TESTING PROGRN! - REl.IEF FROM d,

CERTAlli llYDR0 STATIC TESTING REQUIREMEflTS I

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The Davis-Besse fluclear Power Station Inservice Inspection and Testing 1

Program for the initial,120.aonth interval was submitted on May 15, 1980, i

t and was amended and supplaaented by Toledo Edison Company letters gQ;

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dated December 15,1980. March 31,1981 June 10,1981 and February 16,'

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1932. The NRC staff evaluation of Sections 3 and 4 of that program was provided with c,ur tatter of May 5,1982 By that letter, the y

Commission also granted relief,from certain ASME Boiler and Pressure s/

Vessel Code, Section X1, requirements.

.e Toledo Edison Company, by lettcr of June 22, 1982, requested further relief from the AS!!E Code Section X1s requirei.tonts. Specifically, jt,

relief'is requested from the requiranent to perfom a hydrostatic

,,;j test on certain pipiag systen welds that wiu be added to the auxiliary

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feedwater systsu during the steen generator repair program. The ASME Code hydrostatic test requires pressurization at 1313 psig at a temperature between 130 and 200*F nith a 10 minute hold time. Toledo Edison Company has proposed an alternate pressure testing program.

This alternate test would recpire:

a.

llydrostatic test of the sixte 3n riser subassemblies at 1313 psig for 10 minutes prtor to installation, and J

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b.

Ilydrostatic test of the conpleted repair system at 9?9 psig t

a four hour hold time, 7_,l (1.03 times the operating pressure) and operating temperature with f

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Toledo Edison Company has detemfned that the code required test: is impractical and that the proposed reduced pressure test offers a more meaningful evaluation of the systen.

In addition, there will be a x

substantial savings in personnel radtt. tion exposure', nanpower, and downtthe.

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. DIJTRIBUTION yf j

UNITED STATES

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RIngram NUCLEAR REGULATORY COMMISSION

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WASHINGTON. D C. 20555 July 29,1982'

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Docket No. 50-346 Docketing and Service Section Office of the Secretary of the Commission 7

SUBJECT; DAVIS DESSE NUCLEAR POWER STATION c

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Two signed originals of the Federal Register Notice identified below are enclosed for your transmittal to tr.e Office of the Federal Register for publication. Additionalconformed copies (12 ) of the Notice are enclosed for your use.

O Notice of Receipt of Application for Construction Permit (s) and Operating License (s).

U Notice of Roceipt of Partial Application for Construction Permit (s) and Facility License (s): Time for Submissien of Views on Antitrust Matters.

1 O Notice of. Availability of Applicant's Environment'al Report.

O Notice of Proposed Issuance of Amendment to Facility Operating License.

0 Notice of Receipt of Application for Facility License (s): Notice of Availability of Applicant's 1y Environmental Report; and Notice of Consideration of issuance of Facility License (s) and Notice f'

ot Opportunity for Hearing.

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, O Notice cf Availability of NRC Draft' Final Environmental Statement.

c 0 Notice of Limited Work Authorization.

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.O Notice of Availability of Safety Evaluation Report.

l O Notice of issuance of Construction Permit (s).

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O Notice of issuance of Facility Operating License (s) or Amendment (s).

0 0ther: Notice _of Granting _RatiefJm A.mE Cee r-traments-1 s

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~ q Toledo Edison Company cc w/ enclosure (s):

Mr. Donald H. Hauser, Esq.

U.S. Nuclear Regulatory Comission The Cleveland Electric Resident Inspector's Office Illuminating Company 5503 N. State Route 2 P. O. Box 5000 Oak Harbor Ohio 43449 Cleveland, Ohio 44101 Mrs. Julia Baldwin, Libr'arian Gerald Charnoff, Esq.

Government Documents Collection Shaw, Pittman, Potts William Carlson Lib: ary and Trowbridge University of Toledo 1800 M Street, N.W.

2801 W. Bancroft Avenue Washington, D. C.

20036 Toledo, Ohio 43606 Paul M. Smart, Esq.

Fuller & Henry 30011adison Avenue P. O. Box 2083 Regional Radiation Representative Toledo, Ohio 43603 EPA Region V 230 South Dearborn Street Mr. Robert B. Borsum Chicago, Illinois 60604 Babcock & Wilcox Nuclear Fower Generation Division 7910 Woodmont Avenue, Suite 220 Bethesda, !!aryland 20814 Ohio Department of Health ATTN: Radiological Health Program Director P. O. Box 118 President, Board of County Columbus, Ohio 43216 Comissioners of Ottawa County Port Clinton, Ohio 43452 Attorney General Department of Attorney General 30 East Broad Street Columbus, Ohio 43,215 Harold Kahn, Staff Scientist Power Siting Comission l

361 East Broad Street Columbus, Ohio 43216 Mr. James G. Keppler, Region; Adninistrator U. S. Nuclear Regulatory Comission, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Ted Myers Manager, Nuclear Licensing Toledo Edison Company Edison Plaza 300 Madison Avenue Toledo, Ohio 43652

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