ML20154K262

Provides Questions & Comments Generated from Initial Review of Module 8, Structural Steel. Clarification & Written Response Needed by 860317

ML20154K262
Person / Time
Site:	Vogtle
Issue date:	03/05/1986
From:	Walker R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:	Kelly R GEORGIA POWER CO.
References
NUDOCS 8603110261
Download: ML20154K262 (3)

Text

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MAR 0 51986 Georgia Power Company ATTN: R. J. Kelly, Executive Vice President P. O. Box 4545 Atlanta, GA 30302 Gentlemen:

SUBJECT:

V0GTLE READINESS REVIEW - INTERIM REVIEW QUESTIONS - MODULE NO. 8

" STRUCTURAL STEEL" We have completed an initial review of the subject module which you submitted to us on November 25, 1985, for evaluation. As a result of this initial review, the following questions and comments have been generated which need clarification and a written response.

1. Commitment #154 - This commitment concerns the use of Regulatory Guide (RG) 1.61 " Damping Values for Seismic Design of Nuclear Power Plants" and refers to Final Safety Analysis Report (FSAR) 3.7.B.1 and 3.7.N.1 for clarification. In Amendment 19 of the FSAR it is addressed that the ASME Code Case N-411 damping values are used for piping systems analyzed by the response spectra method, therefore, this comitment should also include the ASME Code Case N-411 in the matrix column " Document / Feature."

2. Commitment #716 - Under the item " Remarks" FSAR 3.8.3.6.2.6 should read FSAR 3.8.3.6.2C. Also RG 1.55 deals only with concrete placement in Category I structures and should not be involved in Module 8 " Structural Steel."

3. Comitment #981 - This commitment involves damping values which are higher than those listed in RG 1.61. The applicant has identified in Table 3.7.B.1-1 of the FSAR that electrical cable trays and supports would use higher damping values as specified in figure 3.7.B.1-7 of the FSAR.

Therefore, it should be clearly addressed that the commitment extends to include figure 3.7.B.1-7 and that in no case would the cable tray damping values exceed 15% of critical damping.

4 Comitments #1606 and #1995 - Section 1.9.57 of FSAR pertaining to use of RG 1.57 refers to Section 3.8.2 for conformance in design limits and load combinations for Class MC components while Section 3.8.2.8 refers back to Section 1.9.57 for the Vogtle position on RG 1.57. Clarification is required to define the content of these comitments.

5. Commitments #1144, #1285, and #1289 - The staff did not verify, check or endorse any computer programs used for structural, seismic and geotechnical analysis, such as BSAP and MFRAME. The applicant is responsible for the accuracy and correctness of calculations and analytical results anyway.

Therefore, these commitments seem unnecessary.

6. Comitment #4142 - SRP 3.J.3 should read SRP 3.5.3.

8603110261 860305 4 PDR ADOCK 050 l

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MAR 0 51986 Georgia Power Company 2 Please review these comments and questions and provide a written response. Your input is requested to be received on or before March 17, 1986. In view of NRC review schedule requirements, we also request a telecon for clarification and explanation of these questions as soon as you are prepared to respond. Please coordinate this telecon with W. H. Rankin (404-331-4197) of my staff.

Your assistance in responding to this request for additional information is appreciated.

Sincerely, cdf h. (

Roger D. Walker, Directcr ,

Division of Reactor Projects

• cc: R. E. Conway Senior Vice President

& Project Director D. O. Foster, Vice President, Project Support P. D. Rice, Vice President, Project Engineering R. H. Pinson, Vice President, Project Construction J. T. Beckham, Vice President & 4 General Manager - Operations R. A. Thomas, Vice President, Licensing C. W. Hayes, Vogtle Quality Assurance Manager W. C. Ramsey, Manager -

Readiness Review G. B. Bockhold, General Manager, Nuclear Operations L. Gucwa, Manager, Nuclear Safety and Licensing ,

M. H. Googe, Project Construction Manager l E. D. Groover, Quality '

Assurance Site Manager - ,

Construction  :

J. A. Bailey, Project Licensing  ;

Manager G. F. Trowbridge, Esq., Shaw, Pittman, Potts and Trowbridge B. W. Churchill, Esq., Shaw, Pittman, Potts and Trowbridge cc: (Continuedonpage3)

MAR 0 5 iW6 Georgia Power Company 3 (cc cont'd)

E. L. Blake, Jr., Esq., Shaw, Pittman, Potts and Trowbridge J. E. Joiner, Troutman, Sanders.

Lockerman and Ashmore J. G. Ledbetter, Commissioner, Department of Human Resources C. H. Badger, Office of Planning and Budget D. Kirkland, III Counsel, Office of the Consumer's Utility Council D. C. Teper, Georgians Against Nuclear Energy T. Johnson, Executive Director.

Educational Campaign for a Prosperous Georgia M. B. Margulies Esq., Chairman, Atomic Safety and Licensing Board Panel Dr. O. H. Paris, Administrative Judge Atomic Safety and Licensing Board Panel G. A. Linenberger, Jr., Administrative Judge Atomic Safety and Licensing Board Panel B. P. Garde, Citizens Clinic, Director Government Accountability Project bec: E. Reis. ELD W. M. Hill, IE M. Miller, NRR W. Brach, EDO M. Sinkule Ril W. Rankin, Rll NRC Resident inspector Document Control Desk State of Georgia A. R. Herdt, RI!

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