ML20211G884

Summarizes Conclusions Reached During 861106 Telcon Re ASME Const Code & Section XI Insp.Required Const NDEs Performed & Applicable Acceptance Stds Met.Unsolicited Response Does Not Affect Conclusions of Telcon.Related Correspondence

ML20211G884
Person / Time
Site:	Limerick
Issue date:	01/05/1987
From:	Kowalski S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
CON-#187-2162 OL, NUDOCS 8702250568
Download: ML20211G884 (7)

Text

' 2 /4 2. .<c.t.Aitu conuwonouscs PHILADELPHIA ELECTRIC COMPANY ok;M u

2301 M ARKET STREET P.O. BOX 8699 '87 JAN 12 P4 :28 PHILADELPHI A. PA.19101 0FF1 _

S. J. KOWALSKI '

... J.T."." "."'.:"J. . . JAN 0 51987 so-as2 -o c Mr. Thomas T. Martin, Director Docket No. 50-353 4(-

Division of Engineering & Technical Programs U. S. Nuclear Regulatory Commission, Region I 631 Park Avenue King of Prussia, PA 19406

Subject:

Limerick Generating Station Unit 2 ASME Section XI Preservice Inspection

Reference:

November 6, 1986 Telecon between PECo M. E.

Division, NRC Region I and NRC NRR (See Attached List for Conferees)

Enclosures:

(1) Letter, K. Ennis (ASME) to J. R. Barbee (Bechtel),

dated September 19, 1986 (2) Letter, S. Weinman (ASME) to J. R. Barbee (Bechtel),

dated September 18, 1986 (3) Letter, K. Ennis (ASME) to J. R. Barbee (Bechtel),

dated November 24, 1986 Files: GOVT l-1 (NRC)

QUAL 1-2-2 (353/86-17)

Dear Mr. Martin:

As a result of the July 1984 NDE Van Inspection, 50-352/84-29, NRC Region I concluded that until such time as a component or piping assembly is Code Symbol Stamped indications detected during ASME Section XI preservice nondestructive examinations must be dispositioned in accordance with the acceptance standards of the applicable Construction Code in addition to those of Section XI.

Our experience since the NDE Van Inspection has shown that Construction Code and Section XI acceptance standards can be used together effectively for surface examinations but not for volumetric examinations due to the differences in the required method of examination.

We have subsequently made inquiries of the ASME Boiler and Pressure Vessel Committee (Nuclear Codes and Standards) regarding this issue.

The ASME responses are enclosed as requested by your staff. These interpretations clarify that Construction Code acceptance standards are not required for Section XI preservice ultrasonic examinations performed prior to Code Symbol Stamping provided that the ultrasonic examinations are performed after acceptable Construction Code radiography has been performed.

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8702250568 870105 PDR ADOCK 05000352 G PDR "

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T In a telephone conference between NRC NRR, NRC Region I and ourselves on 11/6/86, we discussed the ASME responses, Enclosures 1 and 2, and our position on this issue. The following summarizes the conclusions reached during the 11/6/86 telephone conference. It is understood that the NRC Staff concurs with the ASME responses provided that:

1. The required construction nondestructive examinations have been performed and the applicable acceptance standards have been met.

2. The maximum allowable size of a suspected flaw is determined using the ASME Section XI preservice acceptance standards.

3. The acceptance of a preservice indication by fracture mechanics analysis and/or modification of the ASME Section XI preservice acceptance standards is not permitted.

Subsequent to the 11/6/86 telephone conference we received an unsolicited additional ASME response, Enclosure 3. This response modifies the original response from the ASME Section III committee by eliminating query #2. We believe this change has no bearing on the conclusions reached during the 11/6/86 telephone conference as this particular question is not germane to the issue.

We thank you for your consideration of this matter. Should additional discussions be required, please do not hesitate to contact us.

Since el ,

7

% ,~$ V.

. J.6Kowalski Vice President Engineering & Research Department i

DLS/pd11108608 Attachment Enclosures Copy to: R. A. Hermann, BWR Project Directorate #1/ Project Dir. Div.

of BWR Licensing / Office of NRR

~ 2.-

cc: ~ Troy B. Conner, dr., Esq. (w/ enclosure) - - -

Benjamin H. V6gler, Esq.

(w/ enclosure) -

Mr. Frank R. Romano -

(w/ enclosure) - ' - '

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Mr. Robert L. Anthony (w/ enclosure)- - -

Ms. Maureen' Mulligan-(w/ enclosure)

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Char 1es W. Elliot, Esq. (w/ enclosure) _

Barry M. Hartman, Esq. (w/ enclosure)

Mr. Thomas Gerusky (w/ enclosure)

Director, Penna. Emergency (w/ enclosure)

Management Agency Angus R. Love, Esq. (w/ enclosure)

David Wersan, Esq. (w/ enclosure)

Robert J.~Sugarman, Esq. (w/ enclosure)

Kathryn S. Lewis, Esq.

(w/ enclosure)

Spence W. Perry, Esq. . (w/ enclosure)- , -

. Jay M. Gutierrez, Esq. (w/ enclosure) -

Atomic Safety & Licensing (w/ enclosure)

Appeal Board Atomic Safety & Licensing (w/ enclosure)

Boaro Panel -

Docket & Service Section~ (w/ enclosure)

Mr. E. M. Kelly . (w/ enclosure)

Mr. Timothy R. S. Campbell (w/ enclosure) e e

e I

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ATTACFNENT Novenber 6,1986 Telecon Between PEco M. E. Division, NRC Region I and NRC NRR Time 1:45 P.M.

Conferees PECo M. E. Division R. R. Hess (at Bethesda)

D. L. Schmidt R. H. Zong NRC Region I t

R. A. McBrearty J. T. Wiggins EC MR R. A. Hermann B. Turovlin DLS/pd11108609

h i e s .

,, . Enclosure (I)

E S , The American Society of

. Codes and Standards Mechanical Engineers September 19, 1986 345 East 47th Street New York, NY 10017 ,

J.R. Barbee Bechtel National Corp.

P.O. Box 3965 '

San Francisco, CA 94119 .

-  ? .

Subject:

Section III, Division 1, NI-5200 Required Examination .of Welds, EX-5300 Ac.copt'ance Standards, All Edi~tions ,

Item: NI86-043 .

Reference:

Your. letter daYed August' 20, 1986'- ~~ .

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Our understanding of the questions in your inquiry, and our replies, are as follows:

Question (1): May the Certificate Holder perform additional nondestructive examinations of welds after the weld has been found to be acceptable to the criteria of NI-5300?

Reply (1): Tea, Section.III neither requires nor prohibits additional

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nondestructive examination of welds mee. ting the acceptance criteria of NI-5300?

Question (2):. When a Certificate Holder performs additional nondestructive.

examinations. not required by NI 5200, must the additiorial nondestructive examinations meet the acceptance criteria of NI-53007 Nd,Section III does no't provide acceptance criteria for NDE

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Reply (2): ,

which is not required to be performed by Section III.

Question (3):1 Af ter radiographic examination of circumferential butt velds in piping has been performed and the. acceptance . standards of NB/NC-5320 have been met, do the'a.cceptance standards. of NB/NC-5330' of.Section III apply to an

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ultrasonic examination performed to meei;'the' preservice era'mination '

. . requirements of'.Section II 'when thisJ ultrasosic examination is performed. prior to the Codde Symb'o1' Stamping 'of the ' piping system?

Reply (3): No. The provisions of Section II apply for preservice enmi nation. ,

Very ruly yours, Vin b Assistant Secretary, Boiler and Pressure Vessel Committee KE/ak

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Enclosure (2) t .s . -

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E . The American Society of codes and standards Mechanical Engineers 345 East 47th Street  :

New York. NY 10017 .  !

l September 18, 1986 J.R. Barbeo

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, Bechtel National, Inc.

' Codes and Standards Group ,

Fifty Beale ~ Street P.O. -Box 3965 ' . , ,

" JSan . Francisco,"CA' 94119 'a -

Sul$ ject: Section II', Division'1,1980 Edition with Addenda through Winter 1981, and later Editions and Addenda through the 1986 Edition, IVB/IWC-3112; Preservice Examina' tion and Acceptance Item: IN86-022

Reference:

Tour letter dated , September 4,1986 .

Dear Sir:

' _0ur undeis'tanding of the ques tion in your. inquiry, and.our reply,. are as follows:

Questio'n: . When preservice ' examination of cir'eumferential butt w~ elds 'in piping "

is performed using the ultrasonic examination method, and 'the ultrasonic examination is performed prior to Code Symbol Stamping of the piping system, is it a requirement of Section II, that ultrasonically detected discontinuities be evaluated to the acceptance standards of Section III in addition to the acceptance standards of Section II, Table IVB/ IVC-3410-1?

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lJ .. Reply: No; it is not a . requirement of Sectionf1I.

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- 8 Very truly yours, h

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Steven Weinman Assis tant Secretary, Boiler and -

Pressure Vessel Committee sV/ak t l

t WP 201986 I

I ASWE p<ocedures ,eoride los recoas4 eaten elIn s etet,retates when er d additeaalinfoematen es avadatse eh.ch the equitet beleevts might aMect the att',telaten Istihet ,U10ns aggeved l

Dithis steep <etaten may seMalto the ca,ausal ASW( comnuttee er tvDcammettre Aa llated eInt 90'ee0*6 00 the code documents ASW( Goes not appeone * ~ certify * "f att ~0s ~ endorse any sem constructea ,eo,eiew, device os acterd,

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~~ 't Enclosure _.(3)

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; _- E S The American Society of -

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Codes and Standadi - - - .

._ Machanical Engineers

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345 East 47th Street _

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-- New York NY 100!7 -

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Nourmber 24, 1986 .

J.R. Barbee Bechtel National Corp.

• P.O. Box 3965 San Francisco, CA 94119

Subject:

Section III, Division 1, NI-52OO Required Examination of Welds, NI-5300 Acceptance Standards, All Editions Item: NI86-043*

Reference:

Your letter dated August 20, 1986 D;ar Sir:

Our understanding of the questions in your inquiry, and our replies, are as follows:

Qu:stion (1): May the Certificate Holder perform additional nondestructive ,

cxr.minations of welds after the weld has been found to be acceptatle to the critoria of NI-53007 Raply (1): Yes,Section III neither requires nor prohibits additional nondestructive examination of welds meeting the acceptance criteria of NI-5300.

Qu:stion (2): After radiographic examination of circumferential butt welds in '

piping has been performed and the acceptance standards of NB/NC-5320 have been mat, is it the intent of the Code that the acceptance standards of NB/NC-5330 cf Section III apply to the preservice examination requirements of Section II when the ultrasonic examination is performed prior to the Code Symbol Stamping I cf the piping system?

R] ply (2)

No. The provisions of Section II that apply for preservice cxamination may be used.

Vcry truly yours,

. s US M Kevin Ennis

- Assistant Secretary, Boiler and I Pressure Vessel Committee l KE/ak

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