ML20116F619

Intervenor Exhibit I-170,consisting of 840803 Memo Forwarding Technical Comments on Disposition of Welding Concerns 8 & 10 Re Violation of Interpass Temp & Quality of vendor-supplied Welds,Respectively,Per Request

ML20116F619
Person / Time
Site:	Catawba
Issue date:	10/11/1984
From:	Miller R DUKE POWER CO.
To:	Dail L DUKE POWER CO.
References
OL-I-170, NUDOCS 8505010151
Download: ML20116F619 (2)

Text

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August 3, 1984 00LKETEC USnRC

'85 APR 25 A10 58 L. C. Dall, Vice President 0FFICE Or $ECRt W '

Design Engineering Department 00CKETfkMIC Re: Catawba Nuclear Station Licensing (Hearing Contentions)

Welding Concerns in response to your request for M & N review and comments on concern #8 and 10, find attached a copy of our technical consnents on the attached dispositions.

Upon your review, should you have further questions, please advise.

T. F. Wyke, Chief Engineer Mechanical & Nuclear Division R. E. Miller, Principal Engineer

ar Attachrent cc: T. F. Wyke D. M. Collings (w/ file)

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j 810 violation of Hot Only Fbster prwided definite statmuents'that interpass l

Itemdi3 Interpass Acceptable

• temperature requirements had been violated on safety

} Temperature With Regard related welds. Test specimens ==1 dad with and without Depositions 'Ib R. S. Poster's irstap t#6ture control ~ abraand the same degree of

. Frm Deposition sensitivity. '!he resolutim appears misleading in saying

, G. R. Jones, that no evidence was found to support the contention of Acceptable With D. W. Waters, violation, when the results indicated that the method

. R. S. Fbster Regard to Jones employed cxsuld not tell if violation had or had not

And Waters occurred. Resolution states nonnal. practice is to toudt j the pipe with the hand, but disregards' Poster's statenent j -

which said, "'the int-p "qsture would fry a 350 degree temp stick". "Bladt welds" are not addressed.

. However, the testing, romaarch, and experienc_e are convincing that the welds are ar-g*ahia regardless of int-T temperature, hac=naa the oss envirorsnent is g; non-agressive to all sudt welds. maaad on this, we do ei not feel that further action is appropriate.

48 Quality of Acceptable Waters deposition came to us marked for concern 88. -

Itan 810 Vendor nacmaa he also mentioned irst-p tasperature control, ,

Supplied we also considered his deposition when reviewirn concern D. W. Waters - Welds 410, above.

No further action is required on concern 98.

• As originally received, Poster's deposition was not included. Possibly the resolution was prepared w/o Foster's deposition.

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