ML20195K151

Forwards Response to NRC Bulletin 88-005 Re safety-related Fittings & Flanges Supplied by West Jersey Mfg & Piping Supplies,Inc.Rept of Design Evaluation of Subj Fittings & Flanges Encl

ML20195K151
Person / Time
Site:	Vogtle
Issue date:	11/30/1988
From:	Bailey J GEORGIA POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20195K155	List: ML20195K151 ML20195K454 ML20196A002
References
GN-1516, IEB-88-005, IEB-88-5, NUDOCS 8812050146
Download: ML20195K151 (3)

Text

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% .4 Georgta Power Corroarly Post Office Box 282 Waynesboro, Georg.a 30830 f8 Southern Company Serv ces. Inc Nst Office Box 2625 B.rm:ngha n, Alabama 35202 wohore zes s"*"

Vogtle Project i

November 30, 1988 l United States Nuclear Regulatory Commission ATTN: Document Control Desk File: X7BC35 >

Washington, D. C. 20555 Log: GN-1516 l 4

PLANT V0GTLE - UNIT 2 i NRC DOCKET NUMBER 50-425  :

! CONSTRUCTION PERMIT NUMBER CPPR-109 1 NRC BULLETIN 88-05 AND 10CFR50.55a(a)(3) FILING l

i Gentlemen: {

1 I

i This submittal is intended to fulfill for Vogtle Unit 2 the  ;

i requirements of NRC Bulletin 88-05 for holders of construction permits  !

to report results of records review, testing, and analysis prior l to the planned fuel load date. Vogtle Unit 2 has a planned fuel i i load date of February 9, 1989. [

. t Since Bulletin 88-05 was issued in May, 1988, Georgia Power Company  ;

l has diligently conducted a program for determining whether the i safety-related fittings and flanges supplied by WJM/ PSI and installed in Vogtle Unit 2 meet the ASME Section III Code requirements and (

j are suitable for the intended service. In addition, Georgia Power '

1 has followed closely the NUMARC program which was established to address the issue of WJM/ PSI suspect materials, j

, v A description of the records review, testing results, analyses, and [

conclusions from the Vogtle Unit 2 program is provided in the enclosed  ;

report "Georgia Power Response to NRC Bulletin 88-05 for Plant Vogtle ,

Unit 2" which will be referred to later as Enclosure 1. In 1.his report the bases are given, including use of information from the i NUMARC program, for concluding that the WJM/ PSI carbon steel and stainless steel safety related fittings and flanges installed in Vogtle Unit 2 meet Code requirements. It is the judgement of the  !

Authorized Inspection Agency (Hartford Steam Boiler Inspection and  !

Insurance Company) and the Chief Safety Engineer for the State of j Georgia that Code requirements are met.

The essence of the contents and conclusions of the Enclosure 1 report were presented by Georgia Power and its consultants to che NRC staff on November 4, 1988. For this final report minor corrections for >

temperature have been made to the Equotip hardness readings as i appropriate. l N

ginn an&gp Y I ca t

o .2 File: X7BC35 Log: GN-1515 November 30, 1988 Page two On November 10, 1988, discussions were held between the NRC staff and Georgia Power in which the NRC provided its positions for resolving the Bulletin 88-05 issues for Vogtle Unit 2. Georgia Power's understanding of those positions is as follows. No additional product testing is required. NRC staff considers the materials acceptable and obtained a commitment from Georgia Power that the presented data would be docketed. However, the NRC staff stated that because of the suspect WJM/ PSI documentation, they wanted Georgia Power to submit a request for an NRC approval and determination under 10CFR50.55a(a)(3) that the subject WJM/ PSI fittings and flanges provide an acceptable level of quality and safety. The NRC staff also required that design evaluations be performed for those subject carbon steel fittings and flanges with estimated tensile strengths less than 66 ksi. In this regard the NRC staff stated that an acceptable basis for converting from Equotip hardness readings to tensile strength for this purpose would be one standard deviation lower bound from the NUMARC "best fit" curve presented in the Enclosure 1 report. NRC requested that the results of those required design evaluations be submitted in support of the 10CFR50.55a(a)(3) filing. Results of those required design evaluations are provided in the enclosed report entitled "Vogtle Unit 2 Design Evaluation of WJM/ PSI Fittings and Flanges with Estimated Strength Below 66 KSI." This report will be referred to as Enclosure 2.

Enclosure 2 provides the curve acceptoble to the NRC staff for converting from Equotip hardness values to estimated tensile strength for the carbon steel ma terial . An Ecuotip hardness of 381Lo corresponds to 66 ksi. There are 61 installed safety-related WJM/ PSI fittings and flanges with 380LD or less out of a total of 636 WJM/ PSI installed safety-related fittings and flanges. Design evaluation methods were in accordance with the NUMARC "Report on Generic Analyses and Evaluation of Suspect Materici Identified in NRC Bulletin 88-05" submitted to the NRC on July 22, 1988. The Enclosure 2 report d

concludes that all of tne installed safety-related WJM/ PSI material at Vogtle Jnit 2 with hardness less than 381LD meet or exceed the j established design criteria.

j Please inform us at the earliest possible time if there are questions

or if additional information is required to fulfill the reporting

requirements of Bulletin 88-05 or for your processing and approval of our 10CFR50.55a(a)(3) filings.

Sincerely, 1

.k. y

! J. A. Bailey 1 Project Licensing Manager JAP /wkl Enclosures j xc: See next page

ki . o File: . X7 BC35 Log: GN-1516  :

November 30, 1988 i Page three r

xc: NRC Regional Administrator NRC Resident Inspector P. D. Rice J. P. Kane R. A. Thomas B. W. Churchill, Es J. B. Hopkins (10) quire G. Bockhold, Jr.

J. E. Joiner, Esquire R. J. Goddard, Esquire R. W. McManus Yogtle Project File