ML20086P343
| ML20086P343 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 11/30/1983 |
| From: | Edwards N, Steinert L NUTECH ENGINEERS, INC. |
| To: | |
| Shared Package | |
| ML20086P296 | List: |
| References | |
| DET-20-015-5, DET-20-015-5-R01, DET-20-15-5, DET-20-15-5-R1, NUDOCS 8402270109 | |
| Download: ML20086P343 (6) | |
Text
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DET-20-015-5 O.
Revision 1 November 1983 1
l ENRICO FERMI ATOMIC POWER PLANT UNIT 2 PLANT UNIQUE ANALYSIS REPORT VOLUME 5 SAFETY RELIEF VALVE PIPING ANALYSIS Prepared for:
Detroit Edison Company Prepared by:
NUTECH Engineers, Inc.
s Approved by:
Issued by:
Dr.
N.
W.
- Edwards, P.E.
L.
D.
Steinert President Project Manager NUTECH Engineers, Inc.
l 8402270109 840221 DR ADOCK 05000341 PDR
REVISION CONTROL SHEET TITLE:
Enrico Fermi Atomic REPORT NUMBER:
DET-20-015-5 Power Plan.t, Unit 2 Revision 1
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Plant Unique Analysis Report
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TITLE: ENRICO FERMI ATOMIC POWER REPORT NUMBER: DET-20-015-5 PLANT, UNIT 2 Revision 1 PLANT UNIQUE ANALYSIS REPORT VOLUME 5 PRE-ACCURACY CRITERIA PRE-ACCURACY CRITERIA T
REV REV PARED CHECK CHECK PARED CHECK CHECK PAGE (S)
PAGE (S) 5-3.1 0
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5-2.2.3 Combination of Dynamic Loads v
The methods used in the analyses for combining dynamic loads are based on NUREG-0484, Revision 1,
" Methodology for Combining Dynamic Responses" (Reference 7).
As described in NUREG-0484, when the time-phase relationship between the responses caused by two or more sources of dynamic loading is undefined l
or random, the peak responses from the individual loads are combined by absolute sum (except for combined SSE and LOCA loads).
The peak responses which result from SSE and LOCA loads are combined l
l using the square root of the sum of the squares (SRSS)
[T technique.
Additional information on NRC acceptance of the SRSS method for combining dynamic responses in Mark I piping systems is provided in Reference 9.
DET-20-015-5 pg NJ)
Revision 1 5-2.61 nutggb
5-2.3 Analysis Acceptance Criteria The acceptance criteria defined in NUREG-0661 on which the Fermi 2 SRV piping analysis is based are discussed in Section 1-3.2.
In general, the acceptance criteria follow the rules contained in ASME Code,Section III, l
l Division 1 up to and including the 1977 Summer Addenda for Class 2 piping and piping supports (Reference 6).
The corresponding Service Level
- limits, allowable stresses and fatigue requirements are also consistent with the requirements of the ASME Code and NUREG-0661.
The acceptance criteria used in the analysis of the SRV piping are summarized in the following paragraphs.
l The SRV piping is analyzed in accordance with the requirements for Class 2 piping systems contained in Subsection NC of the Code.
Table 5-2.3-1 lists the applicable ASME Code equations and stress limits for each of the governing piping load combinations.
The SRV piping supports are analyzed in accordance with cequirements for Class 2 piping supports as pro-vided in Subsection NF of the Code.
The applicable stress limits for support structures are based on the Service Level assignments listed for the governing DET-20-015-5 Revision 0 5-2.62 nutggh 1
t
fx 5-4.0 LIST OF REFERENCES V
1.
" Mark I Containment Long-Term Program," Safety Evaluation Report, USNRC, NUREG-0661, July 1980.
2.
" Mark I
Containment Program Load Definition Report," General Electric Company, NEDO-21888, Revision 2, December 1981.
3.
" Mark I Containment Program Plant Unique Load Definition,"
Enrico Fermi Atomic Power Plant, Unit 2,
General Electric Company, NEDO-24568, Revision 1, June 1981.
4.
Enrico Fermi Atomic Power Plant, Unit 2,
Final Safe.ty Analysis Report, Detroit Edison Company, Section 3.9, Amendment 3, June 1976.
5.
" Mark I Containment Program Structural Acceptance Criteria Plant Unique Analysis Applications Guide," Task Number 3.1.1, Mark I Owners Group, General Electric Company, NEDO-24583, Revision 1, October 1979.
6.
ASME Boiler and Pressure Vessel Code,Section III, Division 1, 1977 Edition with Addenda up to
-I and including Summer 1977.
LJ 7.
" Methodology for Combining Dynamic Responses,"
USNRC, NUREG-0484, Revision 1, May 1980.
l 8.
" Combining Modal Responses and Spatial Components in Seismic Response Analysis," USNRC, Regulatory Guide 1.92, Revision 1, February 1976.
9.
Letter from Domenic B. Vassallo (NRC) to H.
C.
Pfefferlen (GE),
" Acceptability of SRSS Method for Combining Dynamic Responses in Mark I Piping Systems," dated March 10, 1983.
DET-20-015-5
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Revision 1 5-4.1 v
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