ML19323B161
| ML19323B161 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 04/15/1980 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Counsil W NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| TASK-03-06, TASK-3-6, TASK-RR NUDOCS 8005120032 | |
| Download: ML19323B161 (4) | |
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UNITED STATES 8005120032-f
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NUCLEAR REGULATORY COMMISSION p
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h'. G. Counsil, Vice President i
lluclear Engineering and Operations i
Northeast fluclear Energy Company Pos: Office Box 270 Hartfcrd, Connecticut 06101
Dear l:
- r. Counsil:
SUBJECT:
SEP Topic III-6 (Millstone 1) iie are continuing our review of SEP Tcpic III-6, Seismic Review, and have deter-ined that additional information described in the enclosures to this l
ie::e is needed.
- le request your response by June 1,1980.
i Sincerely, Q
-() A w i. n nh (Li r DennisL.Ziebnn,u.-
Chief Operating Reactors Branch #2 l
Division of Operating Reactors l
Enclosures:
Request for Additional I.c fcrea tion cc tc/ enclosure:
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ADDITIO"AL INFORMATION REQ'.':.:50 TO DOCUMENT THE SEISMIC RESISTANCE CAPABILITY OF THE MILLSTONE UNIT N0. 1 FACILITY We have reviewed the material on piping systems submitted to us en Never.ber 26, 1979. The follcwing is the list of information needed to proceed with car raview and evaluation of the Millstone Unit No. 1 piping systems.
I.
Engineering data needed on feedwater line inside containment A.
Design and operating-temperature and pressure i
B.
Nominal pipe sizes of 18" and 12" are indicated on drawings; however, i
pipe materials and schedule specifications are not indicated.
C.
Valheweightsandeccentricitiesareneeded. Somehalveweights I
are unreadable on the furnished drawings and no eccentricities are 2
given.
C.
Seismic anchor movement data l
II.
Piping systems requested in the August 29, 1979 reeting but not included in the November 26, 1979 submittal.
A.
Underground lines to oil storage day tank and from day tank to diesel i
generator, compressed air inlet line to diesel.
3.
Condensatetransferline(portionsrunaboYeisolationcondenser)from reactor building penetration to the isolation condenser.
j C.
Shutdown cooling line (portion summarized in Table 12.1.2.8-3 of the FSAk).
1l J
To ensure that all necessary,information will be furnished for the above lines,
]
the required engineering data are summarized in the enclosure.
l 3
a
?
.4
EtiCL;5'35 2
- E
- UEST FOR SEIS!i!C RESISTANCE I!!F03"ATION)
PIPIM3 SYSTEM Di3INEERIMG MTA tii11 stone 1 The following engineering data are required for ASME Class 2, 3, and AMSI 531.1 piping analyses.
1.
List of design and operating temperatures and pressures 2.
List of load cases and their associated operating conditions (normal and upset (Level A and 8), emergency (Level C), or faulted (Level 0)]
3.
Detailed piping drawings and/or isometrics indicating the geometry of the piping system along with all necessary dimensions and weld locations 4
Ltst of nozir,41 pipe stres, schedules, weights, and materials 5.
List of pipe support types, locations, stiffnesses, and preloads 6.
List of valve locations, weights, and eccentricities (conter of gravity locations) 7.
List of any anchor movements (thermal, seismic, etc.) and locations 8.
Response spectra, static acceleration levels, or ti:ne history in-femation for dynamic analyses 9.
Description of any special fittings or components present on the piping system 10.
If appitcable, any imposed forces and moments due to relief valve diseparge, connected lines and ceaponents, etc.
11.
The design specification.
It is recognized that the design spec-ification would include scoe of the above data.
Unless otherwise directed the following assusotions will be made:
1.
All components are butt welded (flush) and forged (no longitudinal ccaponents).
ideld specifications would be needed if verification i
of this assumption is required.
2.
All components meet ANSI B16.9 and ANSI B16.23 standards.
3.
The requirc::ents of ASME Code,Section III, Subsubarticle MC-35c0 are satisfied.
This list is not necessarily all inclusive; thu:, variations eay result ha to :Ncial recuiremnts rade by certain profects or programs.
I I
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