ML20138G812
| ML20138G812 | |
| Person / Time | |
|---|---|
| Issue date: | 10/30/1985 |
| From: | Chang T Office of Nuclear Reactor Regulation |
| To: | Kniel K Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-17, REF-GTECI-A-46, REF-GTECI-A-47, REF-GTECI-SC, REF-GTECI-SY, TASK-A-17, TASK-A-46, TASK-A-47, TASK-OR NUDOCS 8512160412 | |
| Download: ML20138G812 (25) | |
Text
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- Oct:ber 30, 1985
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MEMORANDUM FOR: Karl Kniel, Chief G Generic Issues Branch 3 - l Division of Safety Technology NRR ( THRU: Newton Anderson, Section Leader ~' i
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Generic Issues Branch ! l Division of Safety Technology, NRR I L . t t FRON: T. Y. Chang Task Manager ! Generic Issues Branch ' j Division of Safety Technology, NRR SU8 JECT: REPORT OF TRIP TO CHARLOTTE, N.C. l {' (SQUGMEETING, OCTOBER 16 & 17, 1985) ( t i l j On October 16 and 17, 1985 the NRC staff met with the SQUG steering ;
' comittee members, $$ RAP members, EPRI representatives and SQUG/EPRI ;
contractors (EQE, MPR, NMC) at the Duke Power Electric Center in Charlotte, ' i North Carolina. A list of meeting attendees and the meeting agenda are included in Enclosure 1. The status of USI A-46 and other related issues " J were reviewed and discussed. In addition, Jim Thomas of Duke Power (SQUG Steering Comittee Member) set-up a number of comonly used electromechanical relays together with typical circuits to demonstrate how ; 4 typical relays function. The afternoon of October 17 a plant tour of the r
.. Catawba Nuclear Power Plant was arranged for members of SSRAP and some 1 ['
members of the staff. The purpose of the tour was to familiarize SSRAP
- i. A members with the remaining types (other than the original 8 types) of {
! Q- ) equipment in the scope of USI A-46. The list of equipment viewed on this t i
tour is listed in Enclosure 2. I
! The main points presented and discussed in the meeting are sumarized l; t below: ..
l
- 1. New and potential SQUG membership:
?
l R. Schaffsta11 of RMC stated that presently there are 29 SQUG members. New members are: Public Service Electric and Gas Company (PSE4G), - ' l Boston Edison Co., TVA and Wisconsin Public Service Corp. The goal of i i SQUG now is to have 35 members. There are 6 utilities which have
' expressed strong interest in joining SQUG, they are: Carolina Power &
Light Co., Indiana & Michigan Electric Co., Omaha Public Power District,
! Toledo Edison, Public Service company of Colorado, and Portland General (
Electric Company. Duquesne Light Co., and Dairyland Power Corporation l are also considering joining SQUG, but currently have expressed less interest than the six mentioned above. (: 1 l l \ j . 4 l 1 L(
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Karl Kniel i There are also some potential foreign members. ENEL of Italy is, already a member. Electrobel of Brussels, Belguim and Central Electricity Generation Board (CEGB) of Great Britain have expressed interest in becoming members of SQUG. Electrobel has met with Harold Denton and the staff on October 24, 1985 to discuss this and other licensing issues.
- 2. Cable Trays:
Newton Anderson suggested that cable trays be included in the scope of A-46 review. This issue was raised previously by several utilities, and more recently by SEP and in a comment letter from the NRC Office of Policy Evaluation. SQUG Steering Committee members agreed that cable trays will be included in the scope of review of A-46. EPRI agreed to ask its contractor URS/Blume to include cable tray anchorages in the anchorage review guideline.
- 3. November 6 meeting on relay review procedures:
- A meeting is scheduled on November 6, at the MPR office in Washington, D.C. The NRC staff relay review group will meet with W. Schmidt of MPR Associates and Joe McCumber of Yankee Atomic Elect to review the progress of MPR work on relay review procedures. MPR is e using Nine Mile Point Unit I as a pilot plant to try out the relay review procedures. This pilot study will also be discussed at the meeting. The general relay review procedure is depicted in Enclosure 3.
- 4. Status of EPRI work:
George Sliter of EPRI stated that the 5 Generic Equipment Ruggedness Spectra (GERS) packages for batteries, battery chargers, inverters, . valve motor operators arid electric penetrations which are being put - together by ANCO will not be ready until about mid November, 1985. In addition URS/Blume will not have the de-aggregated anchor bolt data ready for SSRAP review as scheduled. These data will also be ready - around mid November. G. Sliter indicated that EPRI funding on data collection has run out and this activity all but stopped. EPRI will get new funding on collection of relay GERS for 1986 and plans to provide GERS for relays by March 1986.
- 5. Status of EQE work:
EQE is currently concentrating on collecting and resolving comments on the draft 21 Class Report
- and the draft Chile Earthquake Report. The 21 Class Report incompasses both the original 8 classes of equipment and the remaining classes of equipment in the scope of A-46. This s
*" Assessment of the Seismic Adequacy of 21 Classes of Equipment in the SQUG Data Base for Safe Shutdown." EQE Draft Report, July 1985.
Karl Kniel ( report reflects the expanded data base as a result of including the ' ' Chile earthquake and GERS in the data base. SSRAP indicated that they have reviewed the 21 Class Report and may want to break the 21 classes into finer classes. A trial walk-through of Rancho Seco Plant indicated that by including data co11ceted from the Chile earthquake, the biggest impact is on Motor Operated Falves (MOVs). Before including the Chilean data, only about 30 out of the total of 110 MOV's in Rancho Seco were covered by the experience data base. After including the Chilean data, about 70 out of 110 MOV's in Rancho Secto are now covered. EQE plans to have the final version of the Chile Earthquake Report issued by the end of 1985.
- 6. Mexican earthquake:
Robert Kassawara of EPRI, who was a member of the Mexico earthquake survey team forined by SQUG, EPRI and NRC, made a verbal sumary report of the effects of the September 19 Hexican earthquake on power plants, industrial facilities and butidings.
- 7. Coments on "NUREG-1030" and " Regulatory Analysis for Proposed Resolution of US! A-46":
SQUG decided to form a working group to coordinate comments and will submit SQUG comments to NRC before the deadline date of November 15, 1985.
- 8. Integration of issues:
Newton Anderson of NRC mentioned that the NRC intends to integrate , related generic issues whenever possible to minimize repetition from - issue to issue. Comon issues in the seismic area that involve equipment are USI A-46, " Seismic Qualification of Equipment in Operating Plants," USI A-17. " Systems Interactions in Nuclear Power Plants," and ttSI A-47, " Safety Implications of Control Systems." The scope of equipment included in seismic spatial interaction in A-17 is now compatible with that of A-46, that is, the requirement is for SSE Level earthquakes and includes equipment for hot shutdown only. For A-17 this applies not only to equipment but also vital services,such as air lines, cables and instrument lines. The A-17 CRGR package is under internal review and is scheduled to go to CRGR in about one month. For A-47, the seismic issue is seismic common mode failure of instrumentation. It is believed that the instruments considered in A-47 are included by type in the seismic experience data base.
- ie A-47
. CRGR, package is ..
being put toget'her, and is about 4 to 5 months behind A-17. Newton Anderson suggested that SQUG should consider extending its function to include A-17 and A-47 seismic concerns. SQUG responded that KMC will develop a proposal by October 31, 1985 and tha's SQUG will decide on this issue.
;3 ~
p y 4 s , ,~/ . E [ { Karl Knielf ' ( g. SQUG interface with ,hP 1 Seismic Design Margins Program: I f R. Kassawara of EPRI mentioned that EPRI f(Project Manager of Seismic Design Margins Program) ; presently under contract to RES/NRC to do,a seismic design marg erre-evaluation on eettern plants. He suggt.sted that the Seismic Ma ins Panel (R. Kennedy'of SSRAP is also a mepber of this panel) can act as' a panel similar to SSRAP. and,5QUG or a similar utility group should provide utility input and feedback to the Scismic Design Margins Program. The SQUG Steering Committee responded by saying that they will decide on this suggestfon after further discussion of the SQUG greuti. 'SQUG also concurred that there;is a; possibility'of their extending their efforts to other generic issues such as the Seismic I Design Margins Program. For instance, walk through inspection of equipment probably will be required by the Seismic Design Margins Progreen,andiculd logically be an extension of A-46. In order to . minimize any repetition for the 5efsmic Design Margins Program. EPRI i requested the following information from $@G:
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- a. Th'e21'ClassRep'ortandChileEarthquakeNepoit.
- t
.b. Relaywork(datacollectiontindreviewprocedure)beingdoneby !
;SQUG. 1'
- c. SystemsQnalysis used to derive the 21 t Jpes of equipment.
, d. Walk through criteria. ! jp{ C,e SQUG agreed that this'information will be provided to the EPRI. R. Kenned Panel.y of SMA is 'a member of both the $$ RAP and the Selimic Margins He agreed that he h a logical conduit ta provide SQUG information to EPRI and vise versa. . 10: $$ RAP comments on relay chatter questions: ' R. Kennedy asked how the Chile relay' data will be used to asses's the : functionality /chottwr concern on relays. W. Schmidt of MPR expressed , e that based on Chile earthquake data, protective type relays seem to be , much more prone to cause problems. The general purpose type relays
- l
> generally functioned well during earthquakes. This indicates that SQUG
- should direct more attention to the protective relays than the poneral purrbse relays. Th final functionality issue of relayi is sti I dependent on the te4t data now being cellected by EPRI/ANCO.
R. Kennedy made known to SQHG Wat he came scross extensive relay test data reported by the Corps of t'ngineters. These tests were performed in , the 70's and included differential and balanced type relays on s switchgear. Jim Thess of SQUG indicated'that these are pfstective ; relays. ; o P. Yr Chea of SEP/NRC also mentioned tilat there are a wealth '
~ f relay test dah by the Navy during their Puctaar program. MC.was denied access to these data during the rein of Admiral Rickover, but it might now be avatlable. W. Schmidt of MPR will try to get this data.
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, Karl Kniel ( 11. Next general SQUG meeting is scheduled on November 20,1985 at Clearwater, Florida. --
T. Y. Chang. Task Manager Generic Issues Branch Division of Safety Technology, NRR
Enclosures:
As Stated Above cc w/encis: T. Speis . . F. Schroeder G. Bagchi P. Y. Chen
~
S. K. Shaukat J. H. Conran R. F. Scholl, Jr. J. Stewart R. Shemanski M. Chiramal l -, R. Bosnak F. Cherny R. Schaffstall B. Sheron J. Richardson G. Sliter . R. Kassawara 1 Distribution: N. Anderson T. Y. Chang - DST Chron GIB Reading File n i' r k A / GIB:DLT GIB: DST 5% ( TYChang: dim 10/p/85 NAnderson 10/2785
** f . + y ENCLOSURE 1 )
LIST OF ATTEN0EES s NAME AFFILIATION TELEPHONE' NUMBER R. E. Schaffstall y KMC, Inc. 202-293-42'00. N. P. Smith Commonwealth Edison 815-458-2801 x2635 T. W. Hsu Virginia Power 804-771-6374 J. W. Pittman NRC 301-492-7703 S. Swan EQE, Inc.' 425-495-5500 N. Anderson NRC ', 301-492-7476 D. Ostrom , SCE 818-302-3290. G. Sliter ' EPRI 415-855-1081 ' R. P. Kassawara' EPRI. 415-855-2775 P. Yanev EQE 415-495-5500 R. J. Tkach PSE8G' 201-430-8835 M. J. Gahan, III 8altimore Gas & Elec. 301-298-3279 H. Hanneman Wisconsin ' Ele. Power Co. 414-277-2009 J. Thomas Duke Poker q 704-373-4612 P. Salas Carolina Po'4er & Light 919-836-8015 _. W. R. Schmidt MPR Associates s 202-659-2320 J. Betlack MPR Associates, 202-659-2320 P. Y. Chen' , NRC 301-492-9601 T. Y. Chang NRC s 301-492-7486 J. McCumber Yankee Atomic 617-872-8100 . G. Bagchi NRC 301-492-8251 301-492-8282 0'3 P. Shemanski NRC R. P. Kennedy SSRAP 714-833-7552 A. J. Schiff SSRAP 317-494-9775 L. A. Wyllie SSRAP > 415-392-6952
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- i. SQUG STEERING GROUP MEETING ,
October 16, 1985 ,
/ 7, 1
r AGENDA -
- 1. Overview of Agenda Topics Neil Smith, SQUG Chairman
- 2. Summary of meeting with C.K. Chou, LLNL on Seismic Fragility Test Program Neil Smith & Dennis Ostrom
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- 3. Status of Membership, Drive Dick Schaffstall 2,
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- 4. EQE Status Sam Swan Chile Report 21 Classes Rancho Seco assessment .
- 5. Relay Functionality Requirements Program Status Bill Schmidt & Jim Thomas
- 6. Generic Implementation Program Status Dick Schaffstall
- 7. Other Topics Attendees
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- 8. Action' Items Neil Smith 2
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- 1. Battery chargers, racks, and inverters Aux. Bldg. Elevation: 554 Col. BB-CC 54
- 2. Automatic transfer switches Aux. Bldg. Elevation: 560 Col. AA-49
- 3. Diesel load sequencer ,,3 "
I Diesel Bldg. Elevation: 556 Col. AA-43
- 4. Engine generator Diesel Bldg. Elevation: 556 Col. BB-40 b u9 , P , ,sta-
- 5. Control and instrument cabinet Diesel Bldg. Elevation: 556 Col. BB-41 4 '2 "
- 6. Temperature sensor Diesel Bldg. Elevation: 556 Col. AA-41
- 7. Motor generator g- 3 Aux. Bldg. Elevation: 594 Col. BB-51
- 8. Fans, chillers, and air handlers Aux. Bldg. Elevation: 594 Col. JJ-54 to GG-59
- 9. Distribution panels Aux. Bldg. Elevation: 594 Col. GG-58
- 10. Relay racks and tastrument racks Aux. Bldg. Elevation: 594 Col. DD-56 This information is for general familiarization of equipment mounting schemes. For more detailed information, see applicable civil seismic mounting drawings.
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. ENCLOSURE 3 4
Figure 1: ' Plan for Development of Generic Relay Functionality Requirements t , s identification of Essential Relays Development of Relay Qualification / Ruggedness Data 4 Development of Generic Development of Generic
. Approach for Identifying Seismic Ruggedness Spectra Essential Functions (GERS) for Relay Types and Relays Application of Generic Development of Specific Approach to OWR and PWR -
Relay Vulnerabilities and 3-- Pilot Plants on a Plant- Other Lessons Learned from Specific Basis EQ Experience Data 1' J J. 1
~
4 leep.1/0yster Creek t I
~
fenIne Yankee r. _-3 Development of Generic Screening Procedure for Identifying Relays i M ich feust Be Functional During e an Earthquake . t . !I e ? 4 Preparation of Relay Functionality Screening /Ouellfication Report
- Generic Screening Procedures
! - Relay auggedness/0malification Date l l ; i I 4 ,
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. Figure 2: Relay Functionality - Implementation Plan , s. ~'
Using Generic Screening Procedure / Relay Ruggedness Data, Identify Those Relays Which Must Function During EQ . (Primarily a drawing / documentation review) . l Determine Types and Locations of Essential Relays Identified Above i $ Establish Required Response Spectra /G-levels for Each Location a . a p- Perform Plant Walk-Thru To:
=g, - Check types of relays installed vs. documentation -
g - Observe type and qualty of mountings
. Determine Those Essential Relays Which: .
Are not sufficient!y rugged (required spectra > GERS), - ExhfETE unacceptable vulnerabilities based on experience, 1 - Are types not covered in available data, and/or
,y Are mounted in an unacceptable / questionable way
- ~1, j
i Replace, Test or Otherwise Qualify Unacceptable Relays Identified Above Document All Results. Replacements, Modifications
/
- (
x 2 _. - - . . - - . . = . - , - - .- : -_ .- . . - - . - .}}