ML20211N888
| ML20211N888 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 12/10/1986 |
| From: | Mark Miller Office of Nuclear Reactor Regulation |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8612180333 | |
| Download: ML20211N888 (4) | |
Text
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Docket Nos.: 50-424 and 50-425 10 DEC 1986 MEMORANDUM FOR:
B. J. Youngblood, Director PWR Project Directorate #4 Division of PUR Licensing-A, NRR FROM:
Melanie A. Miller, Project Manager PWR Project Directorate #4 Division of PKR Licensing-A, NRR
SUBJECT:
NOTICE OF FORTHCOMING MEETING ON V0GTLE WATER llAf2ER ISSUE DATE & TIliE:
December 15, 1986 1:00 p.m. - 5:00 p.m.
LOCATION:
Phillips Building Room P-110 7920 Norfolk Avenue Bethesda, Maryland 20814 PURPOSE:
To discuss the potential for water hammer in the Vcgtle r.uclear service cooling water system (see attached discussion points)
PARTICIPANTS:
NRC GEORGIA POWER COMPANY Diller
- 0. Batum, et. al.
R. Ballard G. Bagchi SOUTHERN COMPANY SERVICES J. Brarr er il. Bailey
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Melanie A. Miller, Project Panager FWR Project Directorate #4 Division of PWR Licensing-A,f;RP
Enclosure:
As stated cc:
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/86 12/ 4 /86
e Mr. R. E. Conway 1
Georgia Power Comoany Vogtle Electric Generating Plant cc:
Mr. L. T. Cucwa.
Resident Inspector Chief' Nuclear Engineer Nuclear Regulatory Commission Georgia Power Company P. O. Box 572 P.O. Box 4545 Waynesboro, Georgia 30830 Atlanta, Georgia 30302 I:r. Ruble A. Thomas Deppish Kirkland, III, Counsel Vice President - Licensing Office of the Consumers' Utility Vogtle Project Council Georgia Power Company /
Suite 225 Southern Ccrpany Services, Inc.
32 Peachtree Street, N.W.
P.O. Box 2625 Atlanta, Georgia 30303 Birmingham, Alabama 35202 James E. Joiner Mr. Donald O. Foster Troutman, Sanders, Lockerman, Vice President & Project General ffanager
& Ashmore Georgia Power Con:pany Candler Building Post Office Box 299A, Route 2 127 Peachtree Street, N.E.
Waynesboro, Georgia 30830 Atlanta, Georgia 30303 Danny Feig Mr. J. A. Bailey 1130 Alta Avenue Project Licensing Manager Atlanta, Georgia 30307 Southern Company Services, Inc.
P.O. Box 2625 Carol Stangler Birmingham, Alabama 35202 Georgians Against Nuclear Energy 425 Euclid Terrace Ernest L. Blake, Jr.
Atlanta, Georgia 30307 Bruce W. Churchill, Esq.
Shaw, Pittrcan, Potts and Trowbridge 2300 N Street, N.W.
Washington, D. C.
20037 Mr. G. Bockhold, Jr.
Vogtle Plant Marager Georgia Power Ccnpany Route 2, Box 299-A Wayresboro, Georgia 30830 Regional Aoministrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, !!.U., Suite 2900 Atlanta, Georgia 30323
DISCUSSION POINTS FOR MEETING ON V0GTLE WATER HAl21ER ISSUE 1.
Is the Vogtle piping layout different from piping laycut in other plants of similar vintage as Vogtle?
2.
Present the load combinations and acceptance criteria (specifically Code requirement, Ccde editions, etc).
3.
. Provide sar.;ple calculations for the analysis of the transient (water hammer): Peak stresses for the transient in combination with perhaps OBE, since. loss of offsite power is likely to occur in the early phases of an OB E.
4.
Provide the details of valve opening sequences, and indicate how an in-advertent opening of a valve to a larger opening angle is accounted for, in the peak stress estimate for critical pipino and component sections.
5.
It appears that certain orifices have undergone pennanent deforraation.
Describe the manner in which the lines incorporating the orifices are designed and analyzed for the analysis of the record.
6.
Several pressure transducers were damaged during certain tests.
Describe the location of the instrurrents and provide justification for the assureption that the system cannot be subjected to a greater pressure surge than that recorded at the fixed instrument locations.
7.
Ref. pa.12. Last Paracraph (Train A)
Phere in the Code is the basis for allowing system design pressure to be exceeded by 20% for less than 1% of the time?
(NC/ND3611.2(c)(2) states that when Level B applies, the peak pressure alone shall not exceed 1.1 tirres the pressure, P...)
8.
Ref og. 13 (Train B)
A. What is basis for first " bullet" - 1.5 x P hydrostatic test required for Class 3 systems?
B. The remaining four " bullets" present qualitative statcrents that require clarification.
MEETING NOTICE DISTRIBUTION q'Dockst File: M DEC 0 9 1986 NRC Particioants NRC PDR M. Miller a
L POR J. Brar.cer NSIC G. Bagchi PRC Systen R. Dallard PWR#4 Reading File M. Duncan Project Manager M. Miller ORAS H. Denton fl. Olson H. Thompson E. Rossi, AD/PWR-A R. Ballard, EB C. Berlinger, RSB J. flilhoan, PSB F. Rosa, EICSB V. Benaraya, FOB OGC J. Partlow B. Grimes E. Jordan ACRS (10)
OPA Receptionist (Building vbere rtg is being held) bcc: Licensee / Applicant & Service List O
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