ML19256D138
| ML19256D138 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/03/1969 |
| From: | Ross D US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Boyd R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 7910170622 | |
| Download: ML19256D138 (7) | |
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UNITED STATES
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JAN 3 1959 Reger S. Ecyd, Assistant Director, Reactor grojects Division of Reacter Licensing TERU: Charles G. Long, Chief, Reacter Pr:rjeps }" No. 3 Division of Reactor Licensing
/7d POST-CO:ISTRUCTION PERMIT MEE2IZ WITH MEROPCLITNI EDISON CCMPA'iY CN THREE MILE ISLAND STATION (DOCKE2 50-269; CPPR-kO)
Su.marf A meeting was held en December 19, 1968, with Metropolitan Edison Company, its agents, and centractors, to discuss the status of Three Mile Island Station. The attendance list is attached. The meeting, held 7 =caths after granting of the ecnstruction permit, covered the status of carry-over items frc= the CP review. Also considered was the general progress of design and ccnstruction. Schedules were estimated for completion of r&d progra=s.
Filing of a design report on the reactor building fan ecolers was discussed.
The applicant's quality assurance plan was discussed in detail.
Recc==endations and conclusions are presented at the end of this me=orandu=.
Discussion 1.
R&D a.
Scdium Chicsulfate We discussed the current DEL precedures for evaluating icdine re=cval by sprays, and referred the applicant to our pcsitica as expressed in recent public hearings.
We notified Met-Ei that the current techniques are =cre conservative than the positicn we expressed on their project at last April's public hearing. As a consequence, we stated, Met-Ed is relying on a realicatien of objectives in the r&d en scdium thicsulfate to achieve their required decentaminaticn factors. The NSSS vendcr, 3&W, had been made aware of our calculational technicues in earlier meetings On Oyster Creek-2, a similar plant. E&W intends to formalice their r&d verk cn sodium thiosulfate in the first half of 1969, but the manner of availability to DEL was not kncm (tcpical report vs filing en a case).
?0DRORGINAL mma 2
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JAN 3 113 Ecger S. Boyd We noted a recent Oak Ridge report concerning the adverce effects of the use of aluminum with sodium thiosulfate. Gilbert Associates, A/E for Three Mile Island, said that the use of aluminum inside containment will be minimiced. Bill Shields of Gilbert stated that no aluminum would be used for conduit or cable trays inside containment. Cutchin of 3&W said that, based on talks with the Cak Ridge perscnnel, the clogging difficulty may in fact be due to aluminum-copper reactions.
We noted an increased interest by LRL in potential hacards due to hydrogen evaluation by radiolysis, b.
Ther: al-Hydraulic 3eisel of B&W stated that the vessel-mcdel flow tests are essentially ecmplete and a report vill he available in the second quarter of 1369 He also stated that B&W is preparing a new heat-transfer correlation and that they vill be coming to DRL in January 1969 for discussion (not en a case).
c.
Fuel-Red Failure A final report shculd be availabl'e in late 1969 or early 1970.
d.
Check Valve Vibration The work is complete, and a report is expected in early 1969 No adverse vibrations were found.
e.
Self-pcVered Detectors The life testing ic of a continuing nature. A report is expected scmetime in the first half of 1969 f.
High-Burnup Puels A report is expected in early 1970.
g.
Xenen Oscillaticna 3&W thought a topical report might be submitted. The work will net be finished until late 1969 (The Met-Ed FSAR is projected for submittal in December 1969)
No new informatien was presented.
E&W still assert that cut-of-ccre neutron detectors, are adequate to control xenon oscillations, shculd they exist.
1446 248
Roger S. Ecyd JAN 3 Ec9 h.
Control Rod Drives Met-Ed had notified us by letter dated December 10,1968 cf their intent to change to a new style of control rod drive. The new unit, a sealed roller-nut type, is to be identical to these described in Oyster Creek 2, Amendment 4.
We said that we wculd follow the Oyster Creek 2 CP review and based en that review determine the need fcr further filing of information by Met-Ed.
We expressed an interest in the revised criteria for the new drives and consequent revisicas in the safety analyses.
Diamond Power, a subsidiary of 3&W, will mariufacture the drives.
Sc=e subcentracting will be done by Royal Industries. The deci-sion to change drives was solely ecencmic.
2.
Combined Seismic and LOCA Leads We said in cur Met-Ed safety evaluation that we would review this subject when the information was available. 3&W is preparing a topical report on this subject for an early submittal. No exact date was fixed.
Preliminary analyses had been submitted on other projects (Crystal River, Oyster Creek 2) with estimates of pressure differential time histories.
3 Control and Instrumentatica a.
Diversified ECCS Sicnal 3&W said that L psig R3 pressure would be used as a second signal for ECCS diversificaticn, and that an analysis based on that number was presented for Oyster Creek 2, Questien 1.2-A.
b.
Separation of Centrol and Safety 3&W said that no changes in protection system design relevant to separation have been made since the CP.
We noted a recent ccncern that the ACRS has expressed about systematic failures. 3&W said they were aware of the concern, it having been mentioned in the Russellville letter. No other specific comment was given.
c.
Dilutien System Centrols 2&W said that a preliminary design shculd be available in the second quarter of 1969 d.
Splittinz Scran Bus 3&W said that Met-51 will use the same system that is described in Chapter 3 of the Oyster Creek 2 PSAR.
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. JAN 3 1969 Roger S. 2cyd e.
Failed Puel Element Detector B&W is pursuing a scoping study. Their schedule is to ecmplete the report in the second quarter of 1969 The manner of submittal is not clear, but B&W does not plan to issue a topical report.
h.
General Design Criterion No. 11 Met-Ed is factoring in the design the ability to go to a cold shutdcwn condition frcm without the control roen. They are using as criteria for design the following:
No second control room will be pr;vided.
a.
b.
No assu=ed da= age to the centro.1 recm.
c.
No time limit during cocidown.
d.
Offsite power available.
We asked if cooldown could be acccmplished in 1 week, and was told that it probably could be.
The necessity for offsite power was not fully explained. Local control stations will be guarded by keys or other means to restrict casual access.
5 Pressure Vessel Thermal Shock 3&W is presently reanalyzing its analysis.
It expects to have a report available in the first quarter of 1969 The manner of transmittal to DRL was not determined.
6.
Pressure Vessel Insrection We discussed inspection of the vessel and primary system in light of the latest draft frem the N-45 committee. The applicant said that some ccnsideration was being given to inspection of the vessel extericr, in that insulation vac being rearranged.
However they thought that precent inspecticn techniques of the vessel exterior would result in high personnel exposures. We ventured the thought that at the PCL we vould be interested in the degree of ecmpliance with N h5, and explana-tions of the areas of ncnconformance.
(We did not state that we vould require ccnformance. )
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Roger S. Boyd JAN 3 1969 7
Airciane Hardening Design is proceeding on design of the containment cylinder vall, and cn other structures, as related to hardening against an airplane impact.
Design has not started on fire protection systems. Met-Ed does not intend to file the design details until the FSAR,15 months before fuel leading. We said more time than average (without defining an average) for structural design review would be needed, as this design is unique and as several outside consultants veuld be involved.
8.
Cuality Assurance Dr. Beck discussed current regulatory actions in the area of QA.
He requested a brief outline frem Met-Ed concerning the three elements:
(1)
How to ensure criteria are incorporated into design.
(2)
How to ensure procurement or construction according to specifications.
(3)
How to assemble at site accordi: g to design and specifica-j tion.
Met-Ed discussed their three-level approach to QA. The first level is a QC function in the field or vender shop. The second level is a QA effort.
The third level is an auditing effort. At the third level Met-Ed employs FPR as a censultant.
Gilbert noted that in their design function cne engineer performs a design, and a separate Gilbert engineer checks his work.
The auditing effort by Met-Ed is actually performed by a representative of GPU. Presently Mr. Suddy Avers holds the positien of QA =anager for GPU Huclear Power Activities Grcup, and dces the third-level auditing.
However, MPR reports to the Met-Ed nuclear Project Manager (presently George Bierman).
One point of complexity is centered around the role of United Engineers and Constructors. UE&C generally serve as construction manager. There is to be no general builder. Ecvever, UE&C may do sc e of the ccnctrac-ticn. In cases where subcontractors are involved, the subcontracter vill do the first-level QC and UE&C the second-level QA.
In cases where UES:0 dces scce of the work they will do the first level, and Gilbert Associates vill do the seccnd level.
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Roger S. Boyd JAN 3 1959 9
Reactor 3uilding Fan Coolers Parts have been ordered for the ecclers. American Air Filters are the prime contracter. The Joy Cc=pany vill furnish the fans. GE small motor division vill furnish the motor (150 hp) and Crane Packing Cc=pany vill furnish the seal. The motor is integral with the motor housing which, acting with the seal, provides isolation of the motor frc= the containment atmosphere.
We said that it was implicit in the safety evaluation that we vculd review design of the fan coolers prior to the POL. Althcu6h not firmly established, it appears that this information =cy be made avail-able in 3 =cnths.
Conclusions and Recc==endations We should write a letter to Met-Ed that:
1.
States cur understanding of the due dates o ? additicnal information on the fan ecclers.
2.
Expresses our interest in receiving the r&d reports as they becc=e available. In addition we should request the filing, for informaticn purposes, of reports en: ec=bined seismic and LOCA loads; dilutien system controls; failed fuel element detector; pressure vessel thermal shock; and airplane hardening design.
3 Cc==ents en the three-level QA effort, especially the joint role by UE&C (not adverse cc==ent, just express the need for careful separatien).
In addition, I believe that we in Reactor Projects, or sc=eone in Cc=pliance, or in ccncert, should inspect two of the Met-Ed vendors. One area ccncerns the new work on the centrol rod drives. We shculd obtain a better ur. der-standing of their design and construction. The second area cencerns the fan cooler motor work. We should visit the shop where the tests are being pe rfo r=ed.
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D. F. Rcss Reactqr Projects 3 ranch No. 3 Divisien of Reactor Licensing.
Attachment:
Attendance List k 8, f)
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POST-CP MEE?I::G DECE:GER 19, 1968 Metronclitan Ediscn Co. & GPU GE Euddy G. Avers, GPU QA Manager Rctert Albert Knapp Gecrge Fil=cre Eierman, !!uclear Prej bigr Jchn Gwaltney Miller, Chief Engineer Rianard '4eamer Heward, Jr, GPU Jcy Cc=pany Rete rt Stone Merrin Gilbert Assc:iates Dwayne Aubrey Gcdfrey MPR Asscciates Henry Yang (Taiwan citizen)
Isaac Harry Mandil
'4ayne Henry Traffas
- iccan Monrce Cole
~41111a= 3ryan Shields Jeffrey Archibald German Sumner 'dillard Reid Carroll Herbert 31tting Crane Packing Cc=pany Karl Schcenherr United Engineers Jchr. Benjamin Silvervoed Alex Ti==e AEC R. R. Pcwell, RP3 #2
'4. R. Butler, RP3 #5 American Air Filter G. C. Lainas, RP3 y2 Richard Deu61as Rivers J. P. Knight, RT Jchn Joseph Hucker C. K. Beck, DR*
F. Leiderbuch, R"*
oss, r2n- #3 D. :.,
n Pickard. Love i Assceintes C. G. Leng, RP3 #3 Marvin Keitn 4codard T. A. Ippelito, RT*
F. Logan, CC*
J. 3. Hendersen, 00*
3abecek & Wilecx L. Forse, RT*
Wilfred Bertra: 3eisel, Jr A. L. Gluck:. ann, RT*
James M:Kenney Cutchin, IV E. G. Arndt, RT*
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o Fennel Rutherfcrd Thc=assen
- Part-time Larry Jean Kuhlman Richard Earl 3rau= iller 1446 253
JP; v e
gg 2ccer 3. Ecyd, Assistant Dircator, 2es:ter Project:
Division of Rea:tcr Licensing T22U: Charles G. L ng, Chief, Rea :cr Projets Er !!o. 3
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Divisi:n of Ren:ter Licensin';
PCST-CO:LWJOIICII PERMIT 1"I';G *ni.s C.CPO*ZX! EDI20:I CC:!?X.T C;;
TE3EE MIL 3 ISLA':D STATIC:I (DOCZI'2 50-269; CPPE'eO) 3--- - ?
A =ceting was held en Dece=ber 19, 1968, with Metrcpc11 tan Edisen Cc=pany, its agent 3, and centractors, to discus: the status of Th ee Mile Island Station. The attendance list is attached. The =ceting, held 7 ::::hs after g-anting of the ccustruction pe =it ecve:wd the status of car:/-o.ler ite=;,
frcm the CP review. Also censidered was the general p:cgress of Cesi5n 2n; const:actica. Schedules were estimated fo:- co=pletica of r&d p.+-.
Filing of a design report on the reactor building fan coolers vas discusaci.
The applicant'a quality assurance plan was discussed in detail.
Recon =cndationa and conclusions are presented at the end of this =e=oranin..
Discussion 1.
ELD
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a.
Sodium Thiosulfate
'Je discussed the current DEL procedures for evaluating i: dine re=cval by sprays, and referred the applicant to cur pcsitien as expressed in recent public hearings.
i~e notified Met-31 that the
-a mative than the position w currant techniqua-expressed en their project at last April's public hearing.
consequence, ve stated, Me -Ed is relying en a realinatica c.
cbjectives in the r&d on scdium thicacifate to achieve th:ir required deconta=inatica factors. The !333 vender, 3FJ, hni :ca cade aware of cur calculational techniques in earlier =cetin; :n Oyster Creek-2. a si=ilar plant. FEJ intends to fo: alize thcir rid work cc sedia thiosulfate in the first half of l$d9, tun ti_
=anner of availability to DRL va not hncen (tcpical report vs filing on a case).
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b.
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.s We expressed an interest in the revised criterin fcr the tsu drivc and Ocnsequect reviaicas in the safety analyses.
Dia=cnd Pcver, a subsidiary cf M'a, vil'. =anura.tum the drives.
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2.
Cc=bined Seis=1: and LCCA Leads We said in our.".ct-Ed safety evaluation that we v uld revi:v this subject when the info:. ation was avail.icle. 3&W is preparin.; a tcpical report on this subject for un early subnit:al. Iic exact date as fixed.
Preliminary analyses had been submitted c.
other pro.jee:c (Crystal River, Oyster Creek 2) with est1=ates cf pmssure differential time histories.
3 Control and Inst:unentatien a.
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number vus presented for O'yster Cree'. 2, questien 1.2
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We nc;ed a recent ecc :rn that the ACR3 ha ; encressed abcut systecatic failures. EW 32 1 they were aware of the concern, it havinc 'seen tentioned in the Russellville letter. :ic cther spacifi: Oc:::ent was given.
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General Desi-. Criteric:.ic. 11 Met-Li is factcring in the design the abil.ty ;o 30 to a cold chutdcun ecndition frco vithout the centrcl rec =. They are usin; as criteria fer design the fciloving:
a.
- lo se:ond control rec = vill be prwided.
b.
Ito assu=ed dannge to the centrcl rec =.
c.
- io ti=c limit during ecoldevn.
d.
Offsite pover available.
We asked if eccidown eculd be acconplished in 1,eek, and was told that it probably could be.
The necessity for offsite power was not fully explained. Lccal contrci stations vill be guarded by keys or other neans to restrict casual access.
5 P-ec ure Vessel The=al Shock E&W is presently reannlycing its analysis. It e:ge:ts to have a report available in the first quarter cf 1069 The man.cr of trans=it;:1 to DRL vas not determined.
6.
Pressure Vessel Insm ::1cn We dis:ussed inspection Of the vessel and prina:-r syste= in li;-h: cf the latest draft frc= the :i-k5 Ocn=ittee. T.;c applicant said th;;
so=2 censideration vac being Given to inspe -icn of the 'tessel e:cerier.,
in that insulation was being rearranged. Ec.ever they thcu.',h that present inspection techniques of the vessel exterior veuld resu' high personnel expecu es.
We ventu ed the thought that at the pCL ve vcu d te interested in the degrae Of ec=pliance with :i-kS, and explan -
tiens of the areas of, acnconfo mance.
(We did net state that we vculd require cenfo:r.anac. )
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3.
Tuality Assurance Dr. Beck discussed current regulator / actions 1. the area of Q.
He requested a brief cutline frc:a Met,-Li concerning.he three ele cn*,3:
(1)
How to en ure criteria are incorporated into design.
(2)
How to ensure procure =ent er constructica acco--iing to specifications.
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Gilbert noted that in their de ign fun: tion ene engineer perf ::: a g.,,... e c,
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o The auditing effort by Met-Si is a:tually perfc. ed by a representative o og.
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c G?il Nuclear ?cver Activ'. ties Grcup, and dces the third-level auditing.
Ecvever, MPR reports to the Met-Li Uucles: Pro.'e:: Manar.er (tresentiv.
George 31ennan).
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and Constructors.
Ud" C generally serte as constraction sacager. There ic to te no genera' builder. Ecvever, tac =ay do sc=e of the :cnstra:-
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o do.he first-level QC and I. EAC the ce:cn.i-levn1 @.
In cases where U'.2:
dces sc=e of the or'. they vill do the firs level, and Gilte-- As cciate.-
t vill de the seco.d level.
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Conclusions and Recen=endaticrg
'~e should write a letter to Met-Si that:
1.
States cur understanding of the due dancs of additicnal inf:=a-- f :
on the fan ecclers.
2.
Expresces our interes; in receiving the rhi repc a 2 they te':.:_
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purposes, of reper's en: cc=oined seismic and LCCA iccdc; di';-1:n systes con *rcis; failed fuel ele =ent detec cr; pressure ic::cl :. 2=_
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In addition, I believe that we in Reacter Projects, er screene in
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or in ecacert, should inspect two of the Met.Ei vend:rs.
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the new verk on the ccatrol red drives. We ch uld obtain a te::cr c.. r.
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Attach =ent:
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Attendance List
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trortn AEC-319 (Rev. 9-M) is scVEWhwENY Pmme TFT.I ?*w-O-2H 4 9
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.w DECEGER 19, IC63 Metrcrclitan E11scn Cc. & GPU GE Buddy G. Avers, GFU Ojs Manager Rcbert Albert Knapp Gecrg=
7--
e 31erman, :'uclear Prcj M.gr Jchn Gwaltney Miller, Chief Engineer Richard ' deaner Heward, Jr, GPU Jcy Cc=pany Rcter: Stone Merrin Gilbe rt Associates Dwayne,subrey Godfrey MPR Asscciatec_
Henry Yang (Taiwan citizen)
Isaac Harry Landil
'Jayne Henry Traffas IIc=an Mcnroe Cole William Bryan Shields Jeffrey Arc' ribald German Sunner Willard Reid Carroll Herbert Bitting Crane Packing Ccmpany Karl Schcennerr United Engineers Jchn Benjamin Silvervoed Alex Timme AEC 1
- B. pc..e.,.,,.= m rr
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W. R. Butler, RP3 $5 American Air Tilter G. C. Lainas, RP3 52 Richard Dcuglas Rivers J. P. Knight, RT Jchn Joceph Eucker C. K. Beck, CE*
F. L?iderbach, RT*
D. T.
...se. ::
Picka d. Love & Associates C. G. Long, RP3 4..
Mar tin Keith Wacdard T. A. Ip;clito, RT*
F. Logan, CO*
J. 3. Hendersen, CC+
3abcock & Wilecx L. Perse, RT*
Wilfred Eertram 3eisel, Jr A. L. Gluc'c.a r n, RT*
James M:Kenney Catchin, I7 E. G. Arndt, RT*
'41111am Allen Cobb Fennel Rutherford Thcmassen
- Part-time Larry Jean Ohlman Richard Earl 3rauniller 44h 2h}