ML17037B809

Memorandum and 11/22/1977 Summary of Meeting with Mark II Owners Group and General Electric Company on Mark II Containment

ML17037B809
Person / Time
Site:	Nine Mile Point, Susquehanna, Limerick, LaSalle, Zimmer, Shoreham, Bailly  File:Long Island Lighting Company icon.png
Issue date:	12/09/1977
From:	Peltier I Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
Download: ML17037B809 (6)

Text

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a P 0 UNITED STATES ca NUCLEAR REGULATORY COMMISSION a m Cl O WASHINGTON, D. C. 205SS aa DEC Og 1977 n

+**g44 Docket Nos; 50-358, 50-387, 5-352/35), 50-367, 50-373/374, 50-388, 50-4'0-322 APPLICANTS: Members of Mark II Owners Group FACILITIES: All Mark II Containment Facilities

SUBJECT:

MEETING WITM MARK II OWNERS GROUP AND GENERAL ELECTRIC COMPANY ON MARK II CONTAINMENT.

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During the staff's generic review of Mark II containments with respect to dynamic loads, GE issued a Topical Report NEDE-24010-P, related to the SRSS method of combining dynamic loads, for the staff review. The staff reviewed the report and the review generated a number of questions in the structural and mechanical engineering areas. The purpose of this meeting was to discuss these questions in draft form prior to a formal transmittal to the Owners Group, An attendance list is attached.

~Summar:

The draft questions were discussed in enough detail to assure that the Owners Group attendees understood the questions and what was expected in the way of responses. The staff stated that it would revise, add or delete questions where appropriate and send them to the Owners Group formally in a few weeks. No time was spent in attempting to make final response to the questions or to resolve issues although frequently the discussion would drift to SRSS vs, AS philosophy.

The Group urged the staff to concentrate its review on components made of ductile materials (metalic) such as piping etc. because these com-ponents need the relief provided by the SRSS method of combining loads, The concrete containments can all take the AS method of'ombining loads (although it was not done that way and the owners would still like to use SRSS for containment structures) and there is only one facility using a steel containment.

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l,,(P I. A. Peltier, Project Manager Light Water Reactors Branch No. 3.

Division of Project Management

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NRC Hark II Owner's Grou November 22, 1977 SRSS Meetin S B L Bechtel A. K. Singh L. E. Shipley G. T. Kitz Burns 8 Roe GE M. Fakelmann, K. G. Hazifotis C. V. Subramanian NRC F. C. Rally P. T. Kuo NSC F. P. Schauer P. Y. Chen S. W. Tegut S. Hou J. B. Henderson R. K. Mattu I. A. Peltier C. Anderson S. B. Nucciacciaro J. J. Zudans R. Klause K. R. Wichman R. L. Stuart C. Grimes CGE H. C. Brinkman NUTECH A. F. Deardorff

~ Wg MEETING SUMtQRY Docket File +~~

NRC PDR Local PDR TIC NRR Reading LllR-Pl File E;- Case R. Boyd R. DeYoung D. Vassallo J. Stolz K. Kniel

0. Parr S. Varga L. Crocker D. Crutchfield F. l(illiams R. Mattson H. Denton D. Muller Pr J'ect Manager:.

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ACRS '(16)

L. Dr'cher NRC

Participants:

S. Rubenstein

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