ML20198C266
| ML20198C266 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 06/24/1991 |
| From: | Eaton R Office of Nuclear Reactor Regulation |
| To: | Gina Davis BOSTON EDISON CO. |
| References | |
| GL-89-10, TAC-77793, NUDOCS 9107010034 | |
| Download: ML20198C266 (4) | |
Text
.
b* ncy p
[w UNITED STATES
( la.
i NUCLEAR REGULATORY COMMISSION
?.O%f f WASHINGTON. D C. 20%6 s
June 24, 1991 Docket flo. 50-293 Mr. George W. Davis Senior Vice President - f:uclear Boston Edison Cortpany Pilgrirn fluclear Power Station RfD #1 Rocky Hill Road Plymouth, Massachusett s 0?360
Dear fir. Davis:
SUf4ECT: PE0t:EST FOR AD01110fiAl It; FORT!ATION RE: GENEFIL LETTEP (GL) 89-10, SUPPLEMENT 3:
"C0hS10 ERAT 10H Of THE RESULTS Of flRC-SP0t150 RED TESTS Of it0 TOR-OPERATED YtLtES" (TAC f 0. 77793)
E) letters dated Decen.ber 17, 1990 and February 26, 1991, you submitted a response to the 120-day,10 CFP 50.5c(f), reporting requirements of GL P9-10, Supplerrent 3, for the Pilgrim fluclear Power Station (P!:PS). After reviewing your response, the staff has concluded that the additional inforn.ation identified in the enclosure is necessary to trate a safety determination regarding the subject inotor-operated valves.
Res[onse to the enclosed Request for Additional Information (FAI) is requested within 30 days frorc receipt of this ittter.
This request is covered by Office of t'anagenent and Budget Clearance Number 31fr-0011, which expires June 30, 1991. The estimated average burden hours are 80 person-hours per licensee response, including searching data sources, gathering and aralyzing the data, performing data evaluations, ar.d preparing the required letter.
(These estimated average burden hours pertain only to the identified response-related matters and do not include the time for actual implementation of the requested action.) Send consents regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to the Information and Records Management Eranch, Division of Information Management, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555, and to the Paperwork Reduction Project (3150-0011),
Office of !!anagernent and Pudget, Washington, D.C. 20503.
9107010034 910624 hg g d gh- $.sL hh<
^
rg e p s
PDR ADOCK 05000293 P
PDR l
Mr. George W. Davis 2
June 24, 1991 Should you have any questions regarding this RA1, please contact me at (301) 492 3041.
Sincerely, original signed by Ronald C. Eaton, Senior Project Manager Project Directorate 1 3 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation
Enclosure:
As stated cc w/ enclosure:
See next page DISTRIBUTION:' Docket File, NRC& Local PDRs, PDI.3 rf, SVarga, JCalvo, MRushbrook, REaton, OGC, EJordan, ACRS(30),(JANorberg, TGScarbrough, ATGody/13E21, PKEapen(Region 1), JLinville Region 1), RWessman
- PDT-7l'A "~~~ ~~:)Dl" g. _... :M ~
R~~~
~
0FC NAME
- MRus rc 1
- REtton:mw
- P essman
......:.....f
'91
- 0 >
OFfitl'ADltDWtDW~~}/91
- p/14/91 DATE
/
' " ~ ~ ~ " ~ ~ ~ ~ ~ ~ ~ ~ ~ " ' " ~ " ~ ~ " " ' " ' ~ ~ ~ ~ "
Dccument tieme:
RAI LTR. PILGRIM TAC N0.77793 t
n e
v
-,+
a r
--r
,-w,-
--.--r c-.
v
ftr. George W. Davis Pilgrim Nuclear Power Staticn cc:
fir. R. A. Anderson Mr. H. Vernon 0heim Vice President of Operations Manager, Reg. Affairs Dept.
and Station Pilgrim Nuclear Power Station Pilgrim Nuclear Power Station RFD #1 Rocky Hill Road RFD #1 Rocky Hill Road Plymouth, tiassachusetts 02360 Plymouth, Massachusetts 02360 Ms. Elaine D. Robinson Resident Inspector' Nuclear Information Manager U. S. Nuclear Regulatory Commission Pilgrim Nuclear Power Station Pilgrim tluclear Power Station RFD #1, Rocky Hill Road Post Office Box 867 P'ymouth, Massachusetts 02360 Plymouth, Massachusetts 02360 Mr. Dale C. Jenkins, Jr.
Chairman,. Board of Selectrren Secretary of Public Safety 11 Lincoln Street Executive Office of Public Safety Plymouth,' l'a ssa chu setts ')2360 One Ashburton Place Boston,t1assachusetts 02108 Office of the Cornmissioner Massachusetts Dep rtrrent of Mr. David Rodham, Director Environtrental Protection Massachusetts Civil Defense Agency One. Winter Street 400 Worcester Road Boston, Massachusetts 02108 P.O. Box 1496 Framingham, Massachusetts 01701-0317 Office cf the Attorney General Attn: -James Muckerheide One Ashburton Place 20th Floor Chairmen, Citizens Bostor., Massachusetts 02108 Urging Responsible Energy P. O. Box 2621 Mr. Robert M. Hallisey, Director Duxbury, Massachusetts 02331 Radiation Control Frogram Massachusetts Department of Public Health 305 South Street Boston, Massachusetts 02130 Regional Administrator, Region I U. S. Nuclear Pegulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 fir. John Dietrich Licensing Division Manager Boston Edison Company 25 Braintree Hill Park Braintree, Massachusetts 02184-
i EECLOSURE REQUEST FOR ADDITIONAL INFORMATION FE:
SUPPLEMENT 3 TO GENERIC LETTER 89-10, "C0lis10 ERAT!0H OF THE RESULTS OF NRC-SPONSORED TESTS OF MOTOR-0PERATED VALVES" PILGRIM 1.
Identify any modifications (e.g., torque switcl. setting adjustments, gearing changes, or motor / actuator replacement) for each MOV within the scope of Supplement 3 to GL 89-10 since June 1990 or planned for the future.
2.
Provide differential pressures, information necessary to confirm motor adequacy, and whether particular valves are flex wedge, spilt wedge, or parallel disk gate design for each MOV within the scope of Supplement 3.
3.
Identify the particular valves that are flex wedge, spilt wedge, or parallel dis) gate design.
4 What is the torque switch setting for RWCU MOV 1201-27 5.-
Has the leakage with ar. POV 981 closed been evaluated? Can the Appendix J or ASME Code leakage limits be met?
6.
Typical industry calculations have globe valves sized and set using a valve factor of 1.1, What is the justification for use of lower valve
' actors?
7.
How have you addressed the r ate of loading phenonienon in MOV sizing ar.d torque switch settings't l-I l
l
..