ML17054A466
| ML17054A466 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 02/09/1984 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Rhode G NIAGARA MOHAWK POWER CORP. |
| References | |
| NUDOCS 8402170458 | |
| Download: ML17054A466 (10) | |
Text
Docket No. 50-410 Mr. Gerald K. Rhode Senior Vice President Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202
Dear Mr. Rhode:
Subject:
Request for Additional Information Concerning of ASME Code Cases for Nine Mile Point 2
In the process of our,review, additional information needed to complete our review on the use of ASME Code cases for Nine Mile Point 2 has been identified.
The information required is identified in Enclosure 1.
In order to maintain our present licensing schedule for Nine Mile Point 2, this information should be submitted as an amendment to the FSAR no later than May 15, 1984.
If you have any questions on the above information, please contact the Licensing Project Manager, Mary F. Haughey, at (301) 492-7897.
Sincerely, Priainal qlg08dby E
Enclosure:
As stated cc w/enclosure:
See next page A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing DISTRIBUTION:
NRC PDR L PDR NSIC PRC LB¹2 Rdg.
EHylton MFHaughey BBordenick, OELD ACRS (16)
- ELJordan, IE
/84 8402i70458 840209 PDR ADOCK 050004iO' A
I1
Nine Mile Point 2
Mr. Gerald K. Rhode Senior Vice President Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York'3202 CC:
Mr. Troy B. Conner, Jr.,
Esq.
Conner
& Wetterhahn Suite 1050 1747 Pennsylvania
- Avenue, N.W.
Washington, D. C.
20006 Mr. Richard Goldsmith Syracuse University College of Law E. I. White Hall Campus
- Syracuse, New.York 13210 Mr. Jay Dunkleberger, Director Technological Development Programs New York State Energy Office Agency Building 2 Empire State Plaza
- Albany, New York 12223 Ezra I. Bialik Assi stant'Attorney General Environmental Protection Bureau New York State Department of Law 2 World Trade Center New York, New York 10047 Resident Inspector Nine Mile Point Nuclear Power Station P. 0. Box 99
- Lycoming, New York 13093 Mr. John W. Keib, Esq.
Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202 Jay M. Gutierrez, Esq.
U. S. Nuclear Regulatory Comnission Region I 631 Park Avenue King of Prussia, Pennsylvania 19406
Nine Mile Point Nuclear Station Unit 2 Docket NO. 50-410 FSAR Table 5.2-1 identifies certain ASME Code Cases that have been used in the construction of components for the Nine Mile Point Nuclear Station Unit 2.
A number of these Code Cases are identified in Regulatory Guides 1.84 and 1.85 as conditionally acceptable.
That is, Regulatory Position C. 1 of each guide identifies additional conditions that should be imposed in addition to those conditions specified in each Code Case.
The Code Cases that are identified in Regulatory Guide 1.84 as conditionally acceptable are:
1361-2, 1606-1, 1734 and N-318.
The Code Cases that are identified in Regulatory Guide 1.85 as conditionally acceptable are:
1644-6,7,9, 1698 and N-242/N-242-1.
Code Case N-253 which is not in the Regulatory Guides is also conditionally acceptable.
The conditions are that applicants wishing to use this Code Case should provide the following information:
(a)
How the case will be used on specific component or systems.
Provide component description design conditions and time of service above 800'F.
(b) Indicate how Paragraph 1110(b) will be compiled with.
(c) If castings are used and the design temperature exceeds 800'F, justification for safe operation should be provided
.whenever levels of delta ferrite exceed FN 10, assuming formation of sigma phase.
(d) If the alternative methods permitted by paragraph 3111(d) are desired to be used, each method shall be justified on a case by case basis prior to its use in design.
(e) Design Reports shall be available for review.
Demonstrate that you are in compliance with the additional conditions applicable to each of the above conditionally approved Code Cases that are identified in Regulatory Guides 1.84 and 1;85.
In FSAR Table 5.2-1 there is an inconsistency between the Code Case number and the title of Code Case 1744.
The correct title for this Code Case is shown in'he attachment.
In addition, there is no Revision 1 of Code Case 1744.
Verify that the Code Case as listed is the correct number and revise Table 5.2-1 accordingly.
0 CASES OP ASA1E ROlLER AND PRESSURE VESSEL CODE CASE N-121 (174<)
Case N-121 (1744)
Carbon Steel Pipe Flanges Larger than 24 ln.
Section Ill,Division 1, Class 2 and 3 Construction ANNULLED Reason:
Mandatory annulrncnt date March 1, 1979.
451 SUPP. 11 NC
CASE CASES OF ASAIE BOII,ER AND PRI'.SSURE VESSEI. CODE Approved by Council, March 1, 1976 Case 1744 Carbon Steel Pipe Flanges Larger than 24 In.
Section III,Division 1, Class 2 and 3 Construction Inquiry:
Under what rules may Section III,Division 1, Class 2 and 3 carbon-stccl pipe Qanges be designed manufactured when the nominal size of the attached pipe exceeds the 24'in. maxhnum covcrcd in ANSI 816.5 as rcfcrenced in Table YC/ND-3691-1?
Reply: It is the opinion of the Committee that Qa>>oes excecdin~
4-in. nornin~ size c:~
O facturcd to the rules of Section IJI, Division 1, except the design may be as required by this Case. Thc com-ponent or pjiping subassembly Date Rcport shall indicate this Case number and revision.
1.0 Thc rules of this Case shall apply to Qanges con-forming to one of the foHowing dimensional standards:
1.1 The Manufacturers Standardization Society Standard
- Practice, "Steel Pipe Line Flangcs," SPM, 1972.
1.2 The American Petroleum institute, "Large Diameter Carbon Steel Flangcs," API 605, 1967.
1.3 The American Water Works Association Standard for Steel Pipe Flanges AWWAC207-55, Class E (275 psi) only.
2.0 Flangcs in accordance with 1.0 above that satisfy the following following requirements shall be consid-ered lo meet the rcquircments of NC/ND-3600 and may bc used without further analysis:
2.'I Thc Design pressure and temperature do not exceed cithcr 100 psi or 200 F.
2.2 The moment loading at the Qange face duc to
~Design and Normal conditions satisfies the following:
MC-AbCS 4,
Ab
= total cross sectional area of bolts at root of thread or section of least diamctcr under stress (in. )
C
= bolt circle diameter (in.)
S
= allowable bolt stress from appropriate table of Appendix I of Section III, Division 1, psi.
3.0 Flangcs in accordance with 1.0 above not meet-ing thc rcquircmcnts of 2.0 shall satisfy the require-ments of NC/ND-3647.1.
4.0 Where Upset, Emcrgcncy or Faulted Conditions are spcciTicd for Qangcs in accordance with 1.0 above and the loading during these conditions satisfies the rcquircment of 2.1 and 22 above, thc Qanges may be considered acccptablc without further analysis.
affecting ofJanuary 9, 1976 743
k I'