ML18092A642
| ML18092A642 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 06/17/1985 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Corbin McNeil Public Service Enterprise Group |
| References | |
| CON-FIN-A-6814 GL-83-28, NUDOCS 8507010087 | |
| Download: ML18092A642 (6) | |
Text
June 17, 1985 Docket Nos. 50-272 and 50-311 Mr. C. A. McNeill, Jr.
Vice President - Nuclear Public Service Electric and Gas Company Post Office Box 236 Hancocks Bridge, New Jersey 08038
Dear Mr. McNeill:
Distribution ORB#l ROG Gray fi 1 e HThompson EJordan BGrimes DFischer
. Docket_ fj le NRC PDR L PDR DELO JPartlow CParrish ACRS (10)
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION MPA B-81, ITEMS 4.2.1 AND 4.2.2 - PREVENTATIVE MAINTENANCE PROGRAM FOR REACTOR TRIP BREAKERS/MAINTENANCE AND TRENDING, SALEM UNITS 1 AND 2 The staff has reviewed your submittals dated July 8, 1983, March 8, 1983, March 14, 1983, April 7, 1983, and April 8, 1983 regarding MPA-81, Items 4.2.1 and 4.2.2.
The staff has concluded that insufficient information was provided for us to complete our evaluation.
The additional information required is discussed in the enclosure.
Please respond to this request for information within 60 days of receipt of this letter.
The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Enclosure:
As stated cc w/enclosure:
See next page ORB#l:DL CParrish%--
06/11/85U OR~~
DFischer/ts 06/17/85
,---8507010087 ~~88b~72 PDR ADOCK PDR p
Sincerely'
/s/SAVarga Steven A. Varga, Chief Operating Reactors Branch #1 Division of Licensing
- DL
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 June 17, 1985 Docket Nos. 50-272 and 50-311 Mr. C. A. McNeill, Jr.
Vice President - Nuclear Public Service Electric and Gas Company Post Office Box 236 Hancocks Bridge, New Jersey 08038
Dear Mr. McNeill:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION MPA B-81, ITEMS 4.2.1 AND 4.2;2 - PREVENTATIVE MAINTENANCE PROGRAM FOR REACTOR TRIP BREAKERS/MA~TENANCE AND TRENDING, SALEM UNITS 1 AND 2
.. The staff has reviewed your submittals dated July 8, 1983, March 8, 1983, March 14, 1983, April 7, 1983, and April 8, 1983 regarding MPA-81, Items 4.2.1 and 4.2.2.
The staff has concluded that insufficient
-"'i information was provided for us to complete our evaluation.
The additional
.. - :%infonnation required is discussed in the enclosure.
Please respond to this request for information within 60 days of receipt of this letter.
~
The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Enclosure:
As stated cc w/enclosure:
See next page s*ncerelt even
- v!rga, Operating Reactor ranch #1 Division of Licensing
__J
Mr. C. A. McNeill Public Service Electric & Gas Company Salem Nuclear Generating Station cc:
Mark J. Wetterhahn, Esquire Conner and Wetterhahn Suite 1050 1747 Pennsylvania Avenue, NW Washington, DC 20006 Richard Fryling, Jr., Esquire Assistant General Soli~itor Public Service Electric & Gas Company P. 0. Box 570 - Mail Code TSE Newark*, New Jersey 07101 Gene Fisher, Bureau of Chief Bureau of Radiation Protection 380 Scotch Road Trenton, New Jersey 08628 Mr. John M. Zupko, Jr.
General Manager - Salem Operations Public Service Electric & Gas Company Post Office Box E Hancocks Bridge, New Jersey 08038 Robert Traae, M~yor Lower Alloways Creek Township Municipal Hall Hancocks Bridge, New Jersey 08038 Thomas Kenny, Resident Inspector Salem Nuclear Generating Station U.S. Nuclear Regulatory Conrnission Drawer I Hancocks Bridge, New Jersey 08038 Richard F. Engel Deputy Attorney General Department of Law and Public Safety CN-112 State House Annex Trenton, New Jersey 08625 Mr. Anthony J. Pietrofitta General Manager Power Production Engineering Atlantic Electric 1199 Black Horse Pike Pleasantville, New Jersey 08232 Richard B. McGlynn, Corrmission Department of Public Uti.lities State of New Jersey 101 Commerce Street Newark, New Jersey 07102 Mr. R. L. Mittl, General Manager Nuclear Assurance and Regulation Public Service Electric & Gas Co.
Mail Code T16D - P. 0. Box 570 Newark, New Jersey 07101 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Lower Alloways Creek Township c/o Mary 0. Henderson, Clerk Municipal Building, P.O. Box 157 Hancocks Bridge, New Jersey 08038 Mr. Edwin A. Liden, Manager Nuclear Licensing & Regulation Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 Mr. Charles P. Johnson General Manager Nuclear Quality Assurance Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 Mr. David Wersan Assistant Consumer Advocate Office of Consumer Advocate 1425 Strawberry Square Harrisburg, Pennsylvania 17120 Frank Casolito, Action Chief Bureau of Radiation Protection Department of Environmental Protection 380 Scotch Road Trenton, New Jersey 08628
\\,
SALEM UNITS 1 AND 2 REQUEST FOR ADDITIONAL INFORMATION GL 83-28, ITEMS 4.2.1 AND 4.2.2, TASK A6814 INTRODUCTION Public Service Electric and Gas Company, the licensee for Salem Units 1 and 2, submitted their response to Generic Letter 83-28 on July 8, 1983.
That submittal identified the Salem letters to NRC dated March 8 and 14 and April 7 and 8 of 1983 as containing descriptions of the Salem preventative maintenance and surveillance programs.
The referenced submittals have been reviewed with respect to Items 4.2.1 and 4.2.2 of the Generic Letter.
Because the licensee response predated the release of the Westinghouse recommendations regarding maintenance for DB-50 Reactor Trip Switchgear, the following additional information is required to evaluate
- tomp)iance of thi1r.current maintenance and surveillance programs with Items 4.2.1. and 4.2.2.
- 1.
Ite~ 4.2.1 - Periodic Maintenance Program for Reactor Trip Breakers.
1.1 Criteria for Evaluating Compliance with Item 4.2.1 The Salem Units 1 and 2 Reactor Trip Systems utilize Westinghouse DB-50 circuit breakers.
The primary criteria for an acceptable maintenance program for this breaker are contained in Maintenance Program for DB-50 Reactor Trip
-Switchgear, Rev. 0, dated October 14, 1983, by Westinghouse.
The NRC Staff, Equipment Qualification Branch, has reviewed and endorsed*the Westinghouse Maintenance Program for~DB-50 Switchgear.
Specifically, the criteria used to evaluate compliance include those items in the Westinghouse program that relate to the* safety function of the breaker, supplemented by those measures that must be taken to accumulate data for trending.
1.2 Issues Relating to Item 4.2.1 Does the current Salem Units 1 and 2 periodic maintenance program for the reactor trip breakers include, on a six month basis:
- 1.
Verification of tri~ bar freedom;
- 2.
Verification of operating mechanism alignment and freedom, using the procedure identified in the
- westinghouse program; l
- 3.
Retaining ring verification, 33 places;
- 4.
Verification of nut and bolt tightness;
- 5.
Verification of pole bases physical condition;
- 6.
Verification of arcing and main contacts physical condition, using the procedure identified in the Westinghouse program;
- 7.
Verification of insulating link's physical condition;
- 8.
Verification of wiring insulation and termination physical condition;
- 9.
Verification of arc chute physical condition;
- 10.
Verification of breaker cleanliness;
- 11.
Undervoltage Trip Attachment (UVTA) dropout voltage test and lubrication, using the procedure identified in the Westinghouse program;
- 12.
Shunt Trip Attachment (STA) operation verification;
- 13.
Verification of operation of auxiliary switches;
- 14.
lnspection of positioning lever condition, using the procedure identified in Westinghouse program;
- 15.
Functional test of the breaker prior to returning it to service, using the procedure identified in the Westinghouse program.
Does the current Salem Units 1 and 2 -periodic maintenance program for the reactor trip breakers include, on a refueling interval basis:
- 1.
Verification of :cell i"nterlock operation;
- 2.
Examination and.cleaning of breaker enclosure;
- 3.
Measurement of trip force required, using*the procedure identified in the Westinghouse program;
- 4.
Breaker response *time for*.undervoltage trip;
- 5..
Functional test of the breaker prior to returning it to service, using the procedure identified in the Westinghouse program.
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__ _J
I The licensee is to confirm that the periodic maintenance program includes these 20 items at the specified intervals or commit to their inclusion.
37418
- 2.
Item 4.2.2 - Trending of Reactor Trip Breaker Parameters to Forecast Degradation of Operability.
2.1 Criteria for Evaluating Compliance with Items 4.2.2 Four parameters have been identified as trendable and are included in the criteria for evaluation.
These are (1) undervoltage trip attachment dropout voltage, (2) trip force, (3) breaker response time for undervoltage trip, and (4) breaker.insulation resistance.
- 2.2 Issues Relating to Item 4.1.2 The licensee is to commit to inclusion of *trip force, breaker response time and dropout voltage for undervoltage trip and breaker insulation resistance as trending parameters.
The licensee should also identify the organization which will perform trend analysis, how often the analysis will be performed and how the information derived from the analysis will be used to affect periodic maintenance.
3