ML20041G311
| ML20041G311 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 03/12/1982 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| References | |
| NUDOCS 8203220044 | |
| Download: ML20041G311 (5) | |
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.xP Tech Branch Mr. A. E. Lundvall, Jr.
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RFerguson Vice President-Supply NSIC Baltimore Gas & Electric Company ACRS (10)
P. O. Box 1475 Gray File Baltimore, Maryland 21203 DJa ffa
Dear Mr. Lundvall:
We are in the process of reviewing the Inservice Inspection Program for Calvert Cliffs Units 1 and 2.
As a result of our preliminary review, s
we have found it necessary to request additional information. Please provide your response to the enclosed request for information within 60 days from receipt of this letter.
With regard to this request for additional information, the reporting and/or recordkeeping requirements affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely,
% fnd s!gned by Rebart A Clark Robert A. C1 ark, Chief Operating Reactors Branch #3 Division of Licensing
Enclosure:
cc: See next page n
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3 8203220044 820312 Ec $DRADOCK05000 OFFICIAL RECORD COPY uscm e-m u
.f Baltimore Gas and Electric Company CC:
James A. Biddison, Jr.
Ms. Mary Harrison, President General Counsel.
Calvert County Board of County Commissioners Baltimore Gas and Electric Com';any Frince Frederick, MD 20768 P. O. Box 1475
.Bal timore, MD 21203 U. S. Environmental Protection Agency Region III Of fice George F. Trowbridge, Esquire Attn:
Regional Radiation Representative
.Shaw, Pittman, Potts and Trowbridge Curtis Building (Sixth Floor) 1800 M Street, N. W.
Sixth and Walnut Streets Washington, D. C.
20036 Philadelphia, PA 19106 Mr. R. C. L. Olson, Principal Engineer Mr. Ra15h E. Archit::el Nuclear Licensing Analysis Unit Resident Reactor Inspector Saltimore Gas and Electric Conpany NRC Inspection and Enforcement Room 922 - G&E Building P. O. Bos 437 P. O. Box 1475 Lusby, MD 20657 Bal timore, MD 21203 Mr. Charles B. Brinkman Mr. Leon B. Russell Manager - Washington Nuclear Operations Plant Superintendent Combustion Engineering, Inc.
Calvert Cliffs Nuclear Power Plant 4853 Cordell Avenue, Suite A-1 Maryland Routes 2 & 4 Bethesda, MD 20014 Lusby, MD 20657 Mr. J. A. Tiennan, Manager Bechtel Power Corporation Nuclear Power Department Attn:
Mr. J. C. Judd Calvert Cliffs Nuclear Power Plant Chief Nuclear Encineer Maryland Routes 2 3 4 15740 Snady Grove Road Lusby, t0 20657 Gaithersburg, MD 20760 Mr. V. J. Lippold, Supervisor Cenbustion Engineering, Inc.
Nuclear Fuel Management Attn:
Mr.
D. W. Kruse, Manager Baltimore Gas and Electric Company Engineering Services Calvert Clif fs Huclear :ower Plant D. O. Box 500 P. O. Sex 1:75 Windsor, CT 05095 Bal timore, Maryland 21203 Public Docunent Roon Mr. R. E. Denton, General Su;ervisor Calvert County Library Training & Technical Services Prince Frederick, MD 2067S Calvert Cliffs Nuclear Power Plant Marvland Routes 2 & 4 Director, Department of State Planninc
' u scy, MD 20657
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301 West Preston Street
- ='t"c e, ": 21201 Mr. R. M. Douglass, Manager Cuality Assurance Department Acninistrator, Power Plant Sitinc Prceran
- ort Smaliwcod Road Complex Enercv and Coastai Zone Acministhation P. O. Scx 1175 Department of Natural Resources
~~
Sal tincre, MD 21203 Tawes State Office Buildind Annapolis, to 2i204 Mr. T. L. Syncor, General Supervisor Operations Quality Assurance Calvert Cliffs Nuclear Power Plant Regional Administratcr Maryland Routes 2 & a Nuclear Recul: tory Commission, Regien I Lusby, MD 20657 Office cf Executive Director for Operatiens 631 Park Avenue Kir.c cf Prussia, Pennsylvania 19405
REQUEST FOR ADDITI0t1AL If4 FORMATION IriSERVICE INSPECTION PROGRAfi Calvert Cliffs 1 and 2 1.
Program Interval Under the change in Regulation 10 CFR 50.55a effective November 1,1979, vour ISI program when finally approved, will cover the last 80 months of your current 10-year inspection interval for Unit 1", i.e., from September 8,1978 tc Maj 8, 1955.
For Unit 2, tne approved program will cover the entire inter-val, i.e., from April 1,1977 to April 1,1987.
Does this result in any changes ycu wish to make in your relief requests? Do you require other ISI relief?
2.
Circumferential Weld in the Reactor Pressure Vessel Closure Head (Ref. 1, Fig. A-2 and Pg 12-C; Ref. 2, Pg 2, Relief Request C)
Reference 1 does not provide any evidence that interferente from the Control Element Drive Mechanisms prevents the code-required five percent of weld 6-2093 from being inspected.
Please supply a drawing or other information to support this basis (offered by you in Ref. 2) for grantinc :nis relief request.
3.
Pressere-Retaining Welds in Picing. Pumos and Valves in Systems Which Circulate 0:ner than Reactor Coolant (Ref. 1. Figures B-56 S 5-57; pp C-844 to C-866; Ref. 2, Fg 3-5, Relief Recuest D)
This relief request raises a number of questions:
(a) You state (Ref. 2, Pg 3): " Portions of :ne Main Steam and Feedwater lines, in ce'ac]acen: tt Safety-Related Areas of :ne Auxiiiary Euilcing are enca:sulated and trerefore inaccess'ble for examinatior.". Ycu :nen i
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?rcceed to-list :nese welcs.
7r. rt ancear ;c te inconsistencies :e:..een tr:s i;s anc ir.forn.at:cn in I
Reference 1; for examplei (1) Scme inaccessicle welds, sucq as 34-MS-1201-5,are nct listed.
(2) Scme encapsulated welds, sucn as 30-MS-1201-8LD-1 & 2, are sub-2 setusnt'v listed (::e-d :e'ow'. as teir.;'exa-irec.
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l (3) One wcld is listed to:n inaccessiele anc tc te examined (31-MS-I n- - -
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l (b) You state (Ref. 2, Pg 5) that you will examine a number of additional welds in the Main Steam Line "not required to be tested in many cases per the guidelines in Regulatory Guide 1.26".
It is not clear how you are applying these guidelines.
For example, welds 34-MS-1201-10, -10LU-1,
-10LU-2, and -10LD are apparently adjacent.
The first three are listed
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inaccessible, but requiring examination; the fourth is accessible, but l
is listed not requiring examination.
(c) In the same paragraph you characterize the ccde recuirement for tnis system as "1005 coverage over the 40-year life of the plant". Have you considerec :ne recuirements cf IWC-2411(b) regarding multiple streams of a system whicn perform the same (or redundant) functions?
(d) You list the additional welds to be examined.
This list also appears to have some omissions and inconsistencies.
For example, weld 34-MS-1202-15LD is listed twice.
Please submit a revised relief request, providing (a) a statement of the total cooe requirement you are addressing, (b) an accurate list of inaccessible welds whose inspection is code-required, (c) a list of welds which you are sub-stituting and the basis for their selection, and (d) an estimate of what fraction of all code-required welds in botn the Main Steam anc Feed.sater systems is involved in :nis relief recuest.
1 l
J.
Hveros atic Testing cf Ner.-Nuclear Sys e s (Ref
- 2. cc 7-5. Relief Reques: H)
According to this relief recuest, "certain pcrtions of non-nuclear systems have been classified as Nuclear. Class III per current guicelines, if tney cene-trate the centainmer.: l i r.e r,
tr.ese iir.e segments'.
zill nct te hycro-statically testec per I'.0-2c1C anc IWD-5CCT' Please explain wny testing per IWD-241C and D.'D-5CCO is 1caract cal ana i
idicate.ca: carden.: : 'a;es uo0n F2fE.
5.
Hydrostatic Testino of Hydraulic Actuator Lines for Main Steam Isolation Valves (Ref. 2. Pg S. Reiief Recuest J)
You intena not to pressure test tnese lines accorcing to IWD-2c10 " c prevent possible contamination of tnese lines".
Please explain wny i sting
.As listed in the relief request.
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per IWD-2410 is irr. practical.
Are there no provisions to pressure test with the actuator fluid?
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REFERENCES:
1.
S. W. Richter, Lona-Tenn Inservice Examination Plan for Class 1, Class 2, 4
j and Class 3 Systems and Components for Calvert Cliffs Nuclear Power Plant, Unit 1, Southwest Research Institute, January 1950.
2.
A. E. Lundvall, Jr. (BGSE) to R. W. Reid (NRC), ISI Procram, Maren 24, 1930.
2.
A. E. Lunavail, Jr. (BG&E) to R. A. Clari (NRC), ISI Pecora, '<ay 29, 1931.
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