ML20058G081
| ML20058G081 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 07/29/1982 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Kay J YANKEE ATOMIC ELECTRIC CO. |
| References | |
| CON-NRC-03-79-118, CON-NRC-3-79-118 GL-82-09, GL-82-9, IEB-79-01B, IEB-79-1B, LSO5-82-007-068, LSO5-82-7-68, NUDOCS 8208030193 | |
| Download: ML20058G081 (26) | |
Text
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Distribution 7
Docket NRC PDR J1)L 2 91983 Local PDR ORB Rdg NSIC DCrutchfield Docket No. 50-29 HSmith LS05-82-007-068 RCaruso OELD Mr. James A. Kay OI&E Senior Engineer - Licensing ACRS (10)
Yankee Atomic Electric Company SEPB 1671 Worcester Road Framingh am, Massachusetts 07701
Dear Mr. Kay:
SUBJECT:
ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT Our contractor, the Franklin Research Center (FRC), is continuing its review of the information you have supplied regarding the environmental qualification of safety related electrical equipment at the Yankee Nuclear Power Station (Yankee).
By letter dated April 30, 1982 FRC notified the staff that Fisbr and Porter !!adel 13D-2495-JBNS level transmitters located inside containment at Yankee, based on the FRC review, should be placed in NRC qualification Category II b:
II.b Equipment important to system operation whose qualification documentation shows there are significant deficiencies that could affect the ability of the equipment to perform its intended safety function (for example, failure or severe anomalies during testing).
3@y A copy of the FRC review is enclosed.
ggfh This equipment item has been assigned NRC Oualification Category II.b.
Based on a datailed review of your response and all documentation the staff has concluded that these transmitters are not qualified. The basis for this conclusion is that (1) you have not provided evidence which substantiates that the units installed at Yankee have special modifications such as additional sealing, high-temperature rated components, and radiation-resistant components, (2) the test report you cited as evidence of qualification is unclear and contains numerous discrepancies, (3) a test report available as part of the equipment environmental qualification review program indicates that all test specimens failed at 6 to 8 minutes into the test due to high temper-ature steam leaking into the electronic housing causing amplifier failure, and (4) the NSSS vender (W) has stated that these transmitters are applicable for non-HELB applications. The staff has further concluded that the test failures render the test inconclusive with respect to short-tern functionality, QB030193ggo7pg i
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You have stated that fully qualified wide range steam generator level transmitters will be installed to perform the long-tcrm monitoring function, and the Fisher & Porter transmitters will be retained for short-term protective functions only. The fully qualified wide range transmitters are expected to eliminate the original concern that steam generator level is necessary for small break LOCAs as well as MSLBs.
The staff concern, however, is that the transmitters have not been demonstrated to be operable and qualified to perfonn the MSLB short-term protective function because a test report indicates that all three test specimen failed at 6 to 8 minutes into the test due to high temperature steam leaking into the electronic housing causing amplifier failure.
We,therefore request that within thirty days of your receipt of this letter you either justify the adequacy of the transmitter for short-term operation or justify interim operation on some other defined basis. We suggest that the clarification set forth in item 8 of Generic Letter No. 82-09 " Clarification Questions and Answers on Environmental Qualifi:ation Requirements," be considered in your jus-tification of the adequacy of the transmitter for short-tern: operation.
We also request that your rasponse provide a schedule for qualification or replacement of this equipment.
Should you have any questions, please contact us.
Sincerely.
Original Signed By Dennis M. Crutchfield, Chief Operating Reactors Branch #5 Division of Licensing l
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Enclosure:
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. July 29, 1982 e
Mr. James A. Kay CC Mr. James E. Tribble, President Yankee Atomic Electric Company 25 Research Drive Westborough, Massachusetts 01581 Chairman Board of Selectmen Town of Rowe Rowe, Massachusetts 01367 Energy Facilities Siting Council 14th Floor
. One Ashburton Place
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Boston, Massachusetts 02108 U. S. Environmental Protection Agency Region I Office ATTN:
Regional Radiation Representative JFK. Federal Building
. Boston, Massachusetts 02203 Massachusetts Department of Public Utilities ATTN:
Chairman Leverett Saltonstall Building Government Center 100 Cambridge Street Boston, Massachusetts 02202 Resident Inspector Yankee Rowe Nuclear Power Station c/o U.S. NRC P. O. Box 28 Monroe Bridge, Massachusetts 01350 j
Ronal d C.. Haynes, Regional. Administrator
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l Nuclear Regulatory Commission, Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 9
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NRC Contract No. NRC 03 79-118 du Franklin Research Center FRC Project No. CS257 Page A o-of The Franun insmeuse FRC Assignment No.13 10 h and Race Seese. Phda. Pa. 19103 (2151 448 1000 FRC Task No.
- /. 7 EQUIPMENT ENVIRONMENTAL QUAUFICATION REVIEW OF EQUIPMENT ITEM NO. #
Equipment Item No. 11 Level Transmitters Located Within Contai:nnent Fischer & Porter Model 13D-2495-JBNS Steam Generator Level Transmitters (W-LT-1003, -1103 -1203, -1303)
Licensee References 19, 646, and 1407 Required Operating Time: Short term TER Checksheet No. 11 Re ference 37, Section 4.6.1 Licensee Submittal: W4 [40]; FRC-designated Page II.6-1 DESIGNATICN FOR DEFICIENCY IDENTIFIED BY THE NRC SER - CIBCLED I':"!M(S) CNLY:
(See Section 3 of this TER for Legend)
R, T, QT, RT, P, H, CS, A, S, (R),
I, RPM, ZXN, SEN, RPS, None, Not stated, Not applicable LISTING OF APPLICABLE CHECKSHEE'"S t Contents Checksheet Pace No.
Equipment Item la Summary of Licensee Responses to the NRC SER lb Equipment Environmental Qualification Summary Furas 2
Licensee Response to NRC SER 3a,%,M,3d System Consideration Review k, k, k, k, M,15 Equipment Environmental Qualification Review Sa,5b,Sc,5d,Se, Sf, 59, Sh, Si, Sj f ir /J, G,a~m, l a / P, [ 9, 5 A Installed TMI Lessons Learned Implementation ve(, y Equipment Summary
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TRO concludes that deterioration of the transmitters' Tefica insulation and wiring was caused by radiatica testing and tnat ec=cined testing er adequate analysis has net been p cvided my the
!.icensee to demencerate qualifica 1cn fc: a radiatten environment.
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More i=pcetantly, it is clear f:cm ancther test repc t that IRC has reviewed in conjunction with the environ-mental qualification review pecgram, that the same Fischer & Porter transed,tter failed the envircnmental test after 6 minutes. Clearly this equipment falls to sattsfy ne NRC crite:La wn ca require that sucet-term safety functions must be qualified for a peried of at least i hour in excess of required operating time.
In addition,
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"'he exact relationship between the installed equipment at Yankee Rcwe and the varicus test specimens has. net been fully established and documentede I
Reference 6FS states that varicus types of transmitters use identical electronic components as the..est specimen and, therefore, those transmitters are also qualified.
However,.T notes that no part nu=cers are provided to verify or substantiate this claim (for example, explicit. identification of the escillator-amplifier, detector, and frece octor).
Reference (//6 states that special modifications are required, such as add:::enal sealing and special hf.gh-temperature electronic ccmpenents, in order to meet tne postulated accident cenditicns.
The licensee has not previded this infcrmation for the installed transmitters.
Adequate dccumentation reflecting full and ccmprehensive qualification of the transmitters has not been provided by -)k
.:censee.
Reference (ff conditions and results were extremel e
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Based on a review of all dccumentation including test :eports as pa:t of the general equipment environ-cental qualificatien review p cgram, IRC concludes taat these transmitters are not qualified because the transmitter failed the enviren= ental test after 6
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FRC concludes that these transmitters must be qualified for the con-tainment environment which exists during the LCCA and MSL3 events. The Lican-see has stated that these transmitters are required for icng-term operation following an accident. #
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1 4'J000 Fren9tn Research Center NRC Contract No. NRC-03-79118 FRC Project No.C5257 Page A commien of The Frenan insmeuse FRC Assignment No.13 5-20mi and Race Seeses. Phde, Pa. 19103(219 448 100o FRC Task No.
WC7
,} I EQUlPMENT ENVIRONMENTAL QUAUFICATIOt1 REVIEW OF EQUlPMENT ITEM NO. //
i NOTES:
i protective functions; however, the NPC has noted that these I
transmitters are no loncer acceetable for REL3 acclications.
In addition, Westinchouse stated that Fischer T, Porter transmitters tvees 1032496, 50EP1041, and 50EP1031 are acclicable for non-TEL3 acclications.
FRC's Ivaluation of Licensee's Ccament de With respect to Licensee Comment d and the Licensee General Comment, FRC notes that these transmitters can also be used for the small break LOCA in addition to an MSL3 event in order to monitor emergency feedwater flewrate to the steam generators. As previously discussed in the Dr"ZR, Reference 2.9 established that the transmitter is susceptible to degradation as a result of radiation exposure unless special radiation-resistant high temperature capacitors and radiatien-hardened transisters are used.
Cherefore, the test sequence for this device should have included radiation exposure prior to or concurrent with the steam exposure. Che Licensee did not provide evidence j
that the transmitters installed in the plant.will not be degraded by exposure to integrated radiation level of 2.4 Mrd. //
d.
The Guidelines require that radiation exposure should be applied during the test sequence concurrent with, or prior to, the steam environment, if it is known that the device.centains materials that can be degraded by i::adiation. FRC notes that the 1::adiated units were different f:cm those subjected to the steam envircnment tests.
Q4a7] Reference 2.3 established that the transmitter is susceptible to degradation as a result of radiation exposure. Thus, FRC cencludes that tne test sequence for this device should have included radiatien exposure prict to er concurrent with the steam exposure, or else the licensee snould provide other evidence that the ::ansmitter medel installed in the plant will not be degraded by exposure to the radiation dose level censervatively predicted for this equipment.
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NRC Contract No. NRC-03 79-118 b Frank!!n Rassarch Center FRC Project No.CS257 Page A om of The FranhanInnense FRC Assignment No.13 5 J, 20ei and Race Sesses. Phde.. Pa. 19103 (2156 448 1000 FRC Task No.
W. 7 EQUIPMENT ENVIRONMENTAL QUALIFICATION REVIEW OF EQUIPMENT ITEM NO. //
NOTES:
1.
Three Fischer & Perter type 10B2496PNBS transmitters were secuentially tested Iserial numcers 6906A5350M7 threuen 6 9). A radiatica exposure test was conducted icliewed cy a nign-temperature steam and pressure test.
2.
The Guidelines require that the field installation =ust be identical to the test setup.
"'h e t e s t recort states that wirine eennections were made with seecially des ened waterereof. hien-tercerature selices. FRC cresumes nat this was acecmelisned ey sel:::nc te -ia cietail leads weien cass nreuen a fseterv-sealed electrical fittine at.n e transmitter.
3.
The Guidelines require that equipment cperatienal medes during testing shculd be representative of the actual plant applicatien requirements. In addition, failure criteria should include instrument accuraev recuirements.
- Me test stated that the transmitters
- coeraticnal enaracteristics tecame erratic and the errer excessive enouch to cancel ne testine.
Eacn transmitter exnicited nien errers at various times du rine the anvirenmental tests but remained within the accuraev recuired fer the tric function witnin tne first 30 secends of -he test.
"'Me reco rt stated that failure of all test units was attributed c hien-temeerature steam lea <ine into tne transmitter housine and causine am 11fier failure.
The transmitter error ranced frem -1.5% to 2.11 of scan after excesure to 280 *? d. rine tne first 2.5 seconds of ne test.
In addition. One recort stated that the maximum errer after a l?-day exces u re is not recuired fand enerefore was not stated).
?PC notes tna t the transmitters failed at 6 to 3 minutes inte the test.
I Westincheuse cencludes that the transmitter medels testad ware net desiened for the test envirenment f320*? ceak temeerature. and 220*F/66 esic fer a 15-dav time duration) r Mewever, the transmitters l
will cerform the recuired tric function in th e first 20 secends of tne accident. ':he report additzenally states nat the Operating enar-actertstics of the transmitters did not change significantly and were within specification after the expcsure to hign-temperature steam and pressure. FRC concludes that this statement is not censistent with the previcus statement and results of the report recardine cancellation of the test and failure after 6 to 9 minutes.
FRC concludes f cm the foregoing that the Fischer & ?crter transmitters failed the envirenmental test.
In addition, this equipment failed to satisfy tne NRC supplemental criteria stated in Sect:ch 2.2.4 of this report, whien states that ecuipment required f=r snort-term safety functions must ce qualified for a paried of at least 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> in excess of the time assumed in the accident analysis.
4.
FN: notes that Westingneuse has responded to,NPC quest ens relative to this test.
Westineneus= has stated that ?isenar & ?erter transmitter tvee 1032496 are adecuatelv eualified fer sncrt-term 4
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NRC Contract No. NRC 03 75118
$U Frankhn Research Center FRC Project No.CS257 PsGe A Dm of The Fre, man tamam FRC Aasignment No.13 5A m.ad R.ca Seeses. PMs.. Pe.191u3 (2156 4481000 FRC Task No.
W7 EQUIPMENT ENVIRONMENTAL QUAUFICATION REVIEW OF EQUIPMENT ITEM NO. //
I NOTES:
that this is not significant because the temperature peak lasts only a tow minutes, and the temperature of the transmitter is not expected to exceed 3:0*F.
ho ff/;),
The test profile did not envelop the requitec environmentalfsIrvice conditions after tne third hour.
- he test chancer [ pressure (5 psig) was significantly lower than the required pressure M13 psig). *his test enamber pressure deviatien could be significant.
- he a:est time duration, stated to be 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, did not envelcp the required accident profile 27-hcur interval. In addition, the test chammer appeared to be opened to amoient conditiens af ter 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />; and the data appears uninterpretable after the seventh hour. *hese data are therefere invalid as evHence of qualification without substantial clarificatien and interpretation.
- 5. The results of the tests during the maximum steam and temperature cycle (75 psig/320*F) were stated to be a :ero snif t of -3.3% of span af ter 1 heur; af ter 2.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br />, a :ero shift of -31 of span was observed. Cn return to ameient, a :ero shift of 1.5% of span was coserved.
FRC concludes that this accuracy is acceptacle,(for this particular
.est) for a time interval of approximately 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />.
- 6. The referenced report states that additional temperature testing is conducted en all oscillator-amplifier units. Each transmitter housing is also pressure tested. However, no further details or results of these tests were provided; and therefore, FRC concludes that these statements are not to be construed as laing evidence of qualificatien.
- 7. *he referenced report states that various models of transmitters use identical electronic ccmponents as the test specimen and are therefore qualified. FPC notes that no further details are presented to sucstantiate this statement and to allow verificatien by an independent reviewer. For example, the part nummer of a specific escillator-amplifier is not mentioned, nor are.any other special part nummers for the required high-temperature electrcnic ccmpenents mentioned. Since special modificatiens are required, suen as additional sealing and special electret.ic ccmpenents, FRC cencludes that identification of the specific escillater-amplifier, detecter, and force meter should have been presented by the licensee.
FRC's Evaluaticn of References Not Provided By the Licensee:
In addition to FRC's previcus remarks concerning Licensee ec==ent a, FRC has knowledge of further testing conducted by *4estinghcuse en Fischer & Porter transmitters.
- he salient points frem that test program are as fc11cws:
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NRC Contract No. NRC 03-75118
!!bb~Frankhn Research Center FRC Pfoiect No.CS257 Page A Deween oGhe Fransen inmow.
FRC Assignment No.13 S"7 20sh and Ross Seems. Phde.. Pe. 19103(215) 448 1000 FRC Task No.
MS EQUIPMENT ENVIRONMENTAL QUAUFICATION REVIEW OF EQUlPMENT ITEM NO. //
EyrF.S This equipment itemwaspreviouslyevaluatedinReference37.(hl4JW)
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TRC has reviewed Paference 2.3 technical data, which acecmpanies the test 3
report text, and notes the felicwings ffj'/* 22 o f- // oo G]
1.
The critical information base within the repcrt is not easily ascertained because the report is brief and lacks substantive test data and technical informatien pertaining to the actual test which would allcw substantiation of the report's conclusicas.
2.
There is a discrepancy within the repce with respect to ths single test specimen. The text identifies the item tested as Type 1C32495:
however, the actual strip-chart recorder icg (Figure 3 cf the report) identifies the specimen as Type 10B2496.
3.
There are major discrepancies and omissiens of data within the repcet with respect to the temperature, pressure, and dwell time duration during the actual test. Attachments to the test report (Figures i and 2) reflect temperature and pressure profiles to be used as criteria for the actual test. However, the resultant test data
~
(Figures 3 through 6) provide an inccmprehensible record of test results superimpesed on the strip-chart recorder :: ace. The parameter monitored by the recorder is not identified; however, it appears to be a linear trace of the transmitter output signal.
No time axis is provided.
The test engineer's notes as to varicus toeparature er pressure parameter nu=cers are shown on the chart, including various time chrenology notatiens; however, a definitive' test profile and asscciated time axis cannot be extracted f:cm the information presented. In fact, there is a notation which indicates that the
- chammer opened to ambient temperature" appecximately 7.5 hcurs into the test; hcwever, the test text implies that the test duratien was centinuous for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. TRC believes that conclusions can be reached frca an analysis of the first 7 hcurs of the trise data.
4.
"'he Guidelines require that the test chamber temperature /?ressure profile ' envelop the service conditions for a time equal Ac the period f:=m the initiation of the accident until the service conditions return to ac =al.
Although the test data are difficult to fully interpret, it appears that the test chamoer time-dependent temperature / pressure profile essentially exceeded the LOCA postulated accident profile for 2.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br />. However, the test chamee:
ti=e-dependent temperature / pressure pr= file did not envelop the required MSI.3 ace:. dent profile with respect to temperature for the first few minutes of the test. As stated previously, TRC cencludes
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948 EQUIPMENT ENVIRONMENTAL QUAUFICATION REVIEW OF EQUIPMENT ITEM NO. //
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EQUIPMENT ENVIRONMENTAL QUALIFICATION REVIEW OF EQUIPMENT ITEM NO. E NRC REQUIJU!MENTS DEFICIENCY WITH SECTICH REFERENCE LI M SEE QUALIFICATION (X OR (DOR /0588-I/0588-II)
SUBMITTAL DOCUMENTATION NOTE No.)
ENVIRONMENTAL PROFILE
! 1.OCA OF ACCIDENT CCNDITIONS
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Decrease To:
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! gayg 1
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NRC Contract No. NRC-03-79118 dOONnklin Research Center FRC Project No.C5257 Page A De of The Fre. den inenwa FRC Assignment No.13 5d 20m and Race Seeses. Phde. Pa. 19103 (215) 440-1000 FRC Task No.
FU EQUIPMENT ENVIRONMENTAL QUAUFICATION REVIEW OF EQUIPMENT ITEM NO. //
NRC REQUIREMENTS DEFICIENCY WITH SECTION REFERENCE LICENSEE QUALIFICATION (X OR (DOR /0588-I/0588-II)
SUBMI':TAL DOCUMENTATION NOTE NO.)
ACCIDENT CONDITIONS IDCA/MSLB/HELB/ Uncontrolled !
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Raciation Dose Rate (rd/hrJ Radiation Qual. Metnod (5.3.1/-/-)
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$C 20th and Race Seests. Phda.. Pa. 19103 (215) 448 1000 FRC Task No.
4'G a
EQUIPMENT ENVIRONMENTAL QUALIFICATION REVIEW OF EQUIPMENT ITEM NO. N NRC REQUIREMENTS DEFICIENCY WITH SECTION REFERENCE LICENSEE QUALIFICATION (X OR (DOR /0588-I/0588-II)
SUBMITTAL DOCUMENTATION NOTE NO.)
Radiation Aging, Dose (rd)
Radiation Aging, Dose Rate Radiation Aging, Method Materials Susceptible g
! pMJ
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(Radiation)
(5.2.4, 7.0/-/-) !
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(-/4.2/-)
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(-/4.2/-)
!y Qualified Life Claimed /
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pg
!p7 Normal Ambient Temperature Normal Amoient Radiation Normal Amoient Humidity On-Going Sur'eillance and Preventive Maintenance (7.0/-/-)
On-Going Analysis of Failures and Degradation (7.0/-/-)
Margin (General)
(6.0/3.0/3.0)
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- 1. Temperature (+15*F)
- 2. Pressure (+10%,
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- 3. Radiation (not required)
- 4. T1:ne (+10%, +1 hour
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4 NRC Contract No. NRC 03-79118 ranklin Researth Center FRC Project No. C5257 Page A Dev=an ad The &= man inom FRC Assignment No.13 5b 2Drh and Race Seems. Phde.. Pa.19103 c15) 448 10o0 FRC Task No.
- L7 EQUlPMENT ENVIRONMENTAL QUALIFICATION REVIEW OF EQUIPMENT ITEM NO. //
NRC REQUIREMENTS DEFICIENCY WITH SECTICN REFERENCE LICENSEE QUALIFICATION (X OR (DOR /0588-I/0 588-II)
SUBMI'"rAL DOCUMENTATION NOTE NO.)
I Acceptance Criteria 1
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(
- 3. Performance Extremes l
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6 NRC Contract No. NRC 03 79-118 J7
' 00J rank 11n Research Center FRC Project No. C5257 Page A Div=on of The Franedm inamuse FRC Assignment No.13 5a 20m and Race Seeses. Phde.. Pa. 19103(215) 448-1000 FRC Task No.
FC EQUIPMENT ENVIRONMENTAL QUALIFICATION REVIEW OF EQUIPMENT ITEM NO. //
EQUIPMENT ENVIRONMENTAL CUALIFICATION REVIEW Criteria: DCR Guidelines X ; NUREG-0588, Cat. I _ ; NUREG-0588, Cat. II NRC REQUIREMENTS DEFICIENCY WITH SECTION REFERENCE LICENSEE QUALIFICATION (X CR (DOR /0 588-I/0 588-II)
SUBMI'1"TAL DOCUMENTATION NOTE NO.)
EQUIPMENT DESCRIPTION
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z.y7fg7/fo79 gg Location / Elevation Equrpment ID No.
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I QUALIFICATION REPORT
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(5. 2. 5/2. 2. 9/2. 2. 9) 8"
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NRC Contract No. NRC-03 79-118 0 Frenidin Research Center FRC Project No.CS257 PaSe A Dewmen of The Freram inamme FRC Assignment No.13 30 20mi and Race Seeses. Phala Pa.19103 GIS 4481000 FRC Task No.
fl.T EQUIPMENT ENVIRONMENTAL QUAUFICATION REVIEW OF EQUIPMENT ITEM NO. M LICENSEE RESPONSE TO NRC SER FACILITY: YANKEE RCWE DCCKET NO.:
50-29 Fw-4 APPENDIX II NOTES:
(1)
These ::ansmitters are only required for a shor:-term reactor protection function.
(2) 100% relative humidi:7 has been assumed for saturated steam condi: ions.
(3)
A 40 year qualified life requirement has been assumed.
(4)
- he qualified life of this equipment vill ba maintained by the plant maintenance and surveillance program.
(5)
In thr. TER, FRC concludes that these transmitters are not qualified for long-term operation based on an environmental test (not referenced by Yankee Rove) where a similar transmit:er failed af ter 6 minutes.
However, the TER does establish that in the test on which Yankee Rove has based its qualification (Doewnentation Reference 2.8) the time-dependent temperature and pressure profile exceeded the postulated accident profile for 2.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br />. In addi:1on, FRC concludes that acceptable accuracy is demonstrated for 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />. Therefore, the Yankee Rove units are acceptable for a short-term reactor protection function.
Yankee Rove vill add a fully qualified vide range steam generator level transmitter on each steam generator to provide long-te:m level indication and retain :he F&P transmi::ers only for :he reactor protection fune: ion.
Yankee Rove believes the failure of the transmitters in the FRC-referenced test was due to the lack of radiation-hardened electronics, which resulted in failure after heavy radiation and exposure to high temperature steam. The transmitters at Yankee Rove were specifically quoted and purchased with radiation-resistant components. Similar uni:s were successfully tested, although no sequentially, vi:h a j
high radiation dose. Therefore, Yankee Rove concludes : hat these l
- ansmi::ers are acceptable for long-term use until fully qualified i
transmitters are installed for :he long-ters requirement.
l l
(6)
The specified dose is the one-year dose. The ac:ual dose vill be i
much less for the short-term func: ion.
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- 4. nun aesearch Center NRC Mntract No. NRC 03 75118 UC0u er FRC Project No.CS257 pag 8 A o-of The Frananinwsuw FRC Assignment No.13 2
20th and Race Seeses. Phda., Pa. 19103 (21M 448-1000 FRC Task No.
V67 EQUIPMENT ENVIRONMENTAL QUAUFICATION REVIEW OF EQUIPMENT ITEM NO. #
EQUIPMENT 8tNVIRONMENTAL' QUALIFICATION
SUMMARY
PORM DESIGNATICN NRC REQUIREMEN*S X = DEFICIENCY Documented Evidence of Qualification Mequate y
Adequate Similarity Between Equipment and Test Specimen Established y
Aging Degradation Evaluated Mequately Y
Qualifiea Life or Replacement Senedule Established (If Required)
X Program Estaolished to Identify Aging Degradation y'
Criteria Regarding Aging Simulation Satisfied (If Required)
Criteria Regarding Temperature / Pressure Exposures o Pean Temperature Adequate o Pean Pressure Adequate o Duration Adequate X
o Required Profile Enveloped Adequately X
o Steam Exposure (If Required) Adequate Y
Criteria Regarding Spray Satisfied Criteria Regarding Summergence Satisfied Criteria Regarding Radiation Satisfied Criteria Regarding Ittst Sequence Satisfied X
Criteria Regarding Test Failures or Severe Anomalies (If Any) Satisfied X
Criteria Regarding Functional Testing Satisfied Criteria Regarding Instrument Accuracy Satisfied Test Duration Margin (1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> + Function Time) Satisfied X
Criteria Regarding Margins Satisfied (NUREG-0588, Cat. I)
DESIGNATICN NRC QUALIFICATION CA*EGORY X = CATEGCRY I.a Equipment Qualified I.b Equipment Qualification Pending Modification II.a Equipment Qualification Not Established Q'I. c Equipment Not Qualified X
Equipment Satisfies All Requirements Except Qualified Life l
or Replacement Senedule Justified III.a Equipment Exempt From Qualification l
I!!.b Equipment Evaluation Deferred IV Documentation Not Made Availacle This equipment item was previously evaluated in Reference 37.
See page 1A Equipment Item description.
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NRC Contract No. NRC-03-79118 il00u Frankhn Research Center FRC Project No. C5257 Page A tw an d The Fmehn inamme FRC Assignment No.13 lb 20th and Race Sasses. Phde.. Pa. 19103 (215) 448 1000 FRC Task No.
//s8 EQUIPMENT ENVIMONMENTAL QUAUFICATION REVIEW OF EQUIPMENT ITEM NO. J.Z.
. St.NMARY OF LICENSEE RESPONSLS. TO THE NRC SER - ONLY CHECKED ITEMS ARE APPLICABLE:
1 The Licensee (has/lk kt) provided a response to the SER concerns.
X The Licensee (han/hipi rdt) specifically stated that the equipment is qualified and/or will function wnen exposed to the applicable DBE environmental service conditions.
The Licensee has presented information whien shows there are no outstanding qualification deficiencies.
2 The Licensee (has/ds yt) proposed a corrective action for this equipment item wnose qualification has not been fully established.
Justification for interim operation (bas /has not) been provided by the Licensee for this equipment item.
2 Corrective action specified by the Licensee:
Equipment replacement with qualified equipment
_,_,, Equipment modification Equipment relocation above submergence level Relocate or shield equipment from radiation source Verify qualification by additional (testing / analysis)
Equipment relocation to a mild environment Qualification testing of equipment in progress Awaiting qualification doc ntation from the vendor X Other ( nJJ a L JL oW d
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The Licensee has provided other information for this equipment item that can be construed as a basis for justification for interim operation.
7 The Licensee (h[s/has not) provided a schedule for the proposed corrective action.
(Schedule for accomplishing the corrective action Mc T" 3 7~i4700
.)
The Licensee states that the equipment item does not require qualification and/or snould be exempted from environmental qualification.
DESIGNATION OF RESULTANT NRC QUALIFICATION EVALUATION CATEGORY BASED ON REVIEW
- CIRCLED ITEM ONLY:
(See Section 3 of this TER for Legend)
I. a Qualified II.c Qualified Life Deficiency I.D Modification III.a Exempt II.a Qualification Not Estaclished III.b Deferred Not Qua).ified IV Documentation Not Available
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