ML19218A030
| ML19218A030 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 08/05/2019 |
| From: | Michael Wentzel Plant Licensing Branch II |
| To: | Wells R Tennessee Valley Authority |
| References | |
| L-2018-LLA-0494 | |
| Download: ML19218A030 (6) | |
Text
1 NRR-DRMAPEm Resource From:
Wentzel, Michael Sent:
Monday, August 5, 2019 8:33 AM To:
Wells, Russell Douglas Cc:
kdhulvey@tva.gov; cedmondson@tva.gov; Shoop, Undine; Saba, Farideh
Subject:
Watts Bar Nuclear Plant - Second-Round Request for Additional Information Related to Application to Revise Technical Specifications Regarding DC Electrical Systems, TSTF-500, Revision 2 (EPID L-2018-LLA-0494)
Attachments:
Watts Bar TSTF-500 Second Round RAIs (L-2018-LLA-0494).pdf
Dear Mr. Wells:
By application November 29, 2018 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML18334A389), as supplemented by letter dated June 7, 2019 (ADAMS Accession No. ML19158A394), Tennessee Valley Authority, requested an amendment to Facility Operating Licenses NPF-90 and NPF-96 for Watts Bar Nuclear Plant (WBN), Units 1 and 2. The proposed license amendment request would revise the WBN Units 1 and 2 Technical Specifications (TSs) to adopt Technical Specifications Task Force (TSTF) Traveler TSTF-500, Revision 2, "DC [direct current] Electrical Rewrite - Update to TSTF-360 (ADAMS Accession No. ML092670242).
The NRCs Electrical Engineering Operating Reactors Branch (EEOB) staff is reviewing the application and has identified areas where it needs additional information to support its review. The NRC staffs request for additional information (RAI) is provided below. A draft copy of the RAI was provided to your staff on July 25, 2019. Based on a clarification call with the licensees staff on July 31, 2019, the NRC staff has revised the wording of EEOB RAI-9 to replace its request to identify cases for when the proposed Condition D would be entered with a request to explain when the proposed Condition would be entered. As discussed with you subsequent to the July 31, 2019, call, the NRC staff requests your response to the RAI by August 30, 2019.
If you have any questions, please contact me at (301) 415-6459 or michael.wentzel@nrc.gov.
Sincerely, Michael Wentzel, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Hearing Identifier:
NRR_DRMA Email Number:
158 Mail Envelope Properties (BL0PR0901MB3250E720F1DC3B95FA21B686E7DA0)
Subject:
Watts Bar Nuclear Plant - Second-Round Request for Additional Information Related to Application to Revise Technical Specifications Regarding DC Electrical Systems, TSTF-500, Revision 2 (EPID L-2018-LLA-0494)
Sent Date:
8/5/2019 8:33:10 AM Received Date:
8/5/2019 8:33:10 AM From:
Wentzel, Michael Created By:
Michael.Wentzel@nrc.gov Recipients:
"kdhulvey@tva.gov" <kdhulvey@tva.gov>
Tracking Status: None "cedmondson@tva.gov" <cedmondson@tva.gov>
Tracking Status: None "Shoop, Undine" <Undine.Shoop@nrc.gov>
Tracking Status: None "Saba, Farideh" <Farideh.Saba@nrc.gov>
Tracking Status: None "Wells, Russell Douglas" <rdwells0@tva.gov>
Tracking Status: None Post Office:
BL0PR0901MB3250.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 1701 8/5/2019 8:33:10 AM Watts Bar TSTF-500 Second Round RAIs (L-2018-LLA-0494).pdf 77656 Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
5(48(67)25$,7,21$/,1)250$7,21
5(*$5',1*/,&(16($0(1'0(175(48(6772
$'2377(&+1,&$/63(&,),&$7,2167$6.)25&( 767) 75$9(/(5
767)5(9,6,21³'&(/(&75,&$/5(:5,7(+/-83'$7(72767)'
7(11(66(9$//(<$87+25,7<
- $776%$518&/($53/$1781,76$1'
'2&.(7126 $1'
%DFNJURXQG
%\\OHWWHUGDWHG1RYHPEHU $JHQF\\ZLGH'RFXPHQWV$FFHVVDQG0DQDJHPHQW6\\VWHP
$'$06 $FFHVVLRQ1R0/$ DVVXSSOHPHQWHGE\\OHWWHUGDWHG-XQH
$'$06$FFHVVLRQ1R0/ $ 7HQQHVVHH9DOOH\\$XWKRULW\\ WKHOLFHQVHH UHTXHVWHG
DQDPHQGPHQWWR)DFLOLW\\2SHUDWLQJ/LFHQVHV13) DQG13) IRU:DWWV%DU1XFOHDU
3ODQW :%1 8QLWVDQG7KHSURSRVHGOLFHQVHDPHQGPHQWUHTXHVWZRXOGUHYLVHWKH:%1
8QLWVDQG7HFKQLFDO6SHFLILFDWLRQV 76V WRDGRSW7HFKQLFDO6SHFLILFDWLRQV7DVN
)RUFH 767) 7UDYHOHU767)5HYLVLRQ'&>GLUHFWFXUUHQW@(OHFWULFDO5HZULWH+/-8SGDWHWR
767)' $'$06$FFHVVLRQ1R0/ 6SHFLILFDOO\\WKHOLFHQVHHSURSRVHG
FKDQJHVWRWKH76UHTXLUHPHQWVUHODWHGWR'&HOHFWULFDOSRZHUV\\VWHPVLQ76³'&
VRXUFHV+/-2SHUDWLQJ'76³'&6RXUFHV+/-6KXWGRZQ'DQG76³%DWWHU\\&HOO
3DUDPHWHUV'$GGLWLRQDOO\\WKHOLFHQVHHSURSRVHGWRDGGWRWKH766HFWLRQ³3URFHGXUHV
3URJUDPVDQG0DQXDOV'DQHZSURJUDPWLWOHG³%DWWHU\\0RQLWRULQJDQG0DLQWHQDQFH3URJUDP'
7KHOLFHQVHH¶VOHWWHUGDWHG-XQH UHVSRQGHGWRWKH(OHFWULFDO(QJLQHHULQJ2SHUDWLQJ
5HDFWRUV%UDQFK ((2% VWDII¶VUHTXHVWIRUDGGLWLRQDOLQIRUPDWLRQ 5$, GDWHG0D\\
$'$06$FFHVVLRQ1R0/ $ 7KH((2%VWDIIKDVUHYLHZHGWKHOLFHQVHH¶V
UHVSRQVHVDQGKDVGHWHUPLQHGWKDWWKHIROORZLQJDGGLWLRQDOLQIRUPDWLRQLVQHHGHGWRFRPSOHWH
WKHUHYLHZRIWKH:%1OLFHQVHDPHQGPHQWUHTXHVW
5HJXODWRU\\5HTXLUHPHQWV
7LWOHRIWKHCode of Federal Regulations &)5 6HFWLRQ³7HFKQLFDO6SHFLILFDWLRQV'
UHTXLUHVLQSDUWWKDWWKHRSHUDWLQJOLFHQVHRIDQXFOHDUSURGXFWLRQIDFLOLW\\LQFOXGH76V
6HFWLRQ F RI&)5UHTXLUHVWKDWWKH76LQFOXGHOLPLWLQJFRQGLWLRQVIRURSHUDWLRQ
/&2V ZKLFKDUHWKHORZHVWIXQFWLRQDOFDSDELOLW\\RUSHUIRUPDQFHOHYHOVRIHTXLSPHQWUHTXLUHG
IRUVDIHRSHUDWLRQRIWKHIDFLOLW\\:KHQDQ/&2RIDQXFOHDUUHDFWRULVQRWPHWWKHOLFHQVHHVKDOO
VKXWGRZQWKHUHDFWRURUIROORZDQ\\UHPHGLDODFWLRQSHUPLWWHGE\\WKHWHFKQLFDOVSHFLILFDWLRQV
XQWLOWKHFRQGLWLRQFDQEHPHW
$SSHQGL[$³*HQHUDO'HVLJQ&ULWHULD>*'&@IRU1XFOHDU3RZHU3ODQWV'WR&)53DUW
- '&³(OHFWULFSRZHUV\\VWHPV'VWDWHVLQSDUW
$QRQVLWHHOHFWULFSRZHUV\\VWHPDQGDQRIIVLWHHOHFWULFSRZHUV\\VWHPVKDOOEHSURYLGHGWR
SHUPLWIXQFWLRQLQJRIVWUXFWXUHVV\\VWHPVDQGFRPSRQHQWVLPSRUWDQWWRVDIHW\\><<@7KH
RQVLWHHOHFWULFSRZHUVXSSOLHVLQFOXGLQJWKHEDWWHULHVDQGWKHRQVLWHHOHFWULFGLVWULEXWLRQ
V\\VWHPVKDOOKDYHVXIILFLHQWLQGHSHQGHQFHUHGXQGDQF\\DQGWHVWDELOLW\\WRSHUIRUPWKHLU
VDIHW\\IXQFWLRQVDVVXPLQJDVLQJOHIDLOXUH
5HJXODWRU\\*XLGDQFH
767)5HYLVLRQ
((2%5$,E
,QLWV-XQH OHWWHULQUHVSRQVHWR((2%5$,WKHOLFHQVHHSURSRVHGWRUHYLVHWKH76
/&2VWDWHPHQWIRUWKHGLHVHOJHQHUDWRU '* '&HOHFWULFDOSRZHUVXEV\\VWHPVIURP
³IRXU'*'&HOHFWULFDOSRZHUVXEV\\VWHPV'WR³7UDLQ$DQG7UDLQ%'*'&HOHFWULFDOSRZHU
VXEV\\VWHPV' DQGWRUHYLVHWKH76DQG76FRQGLWLRQVUHODWHGWRWKH'*HOHFWULFDO
SRZHUVXEV\\VWHPV7KHOLFHQVHHVWDWHGWKDWWKHSURSRVHGFKDQJHWRWKH/&2ZLWK
UHVSHFWWRWKH'*'&HOHFWULFDOSRZHUVXEV\\VWHPVXSSRUWVWKHUHGXQGDQF\\RIWKHVWDQGE\\
HOHFWULFDOSRZHUVXEV\\VWHP7KHOLFHQVHHSURYLGHGWKHIROORZLQJH[SODQDWLRQ HPSKDVLVDGGHG
(DFK'*'&HOHFWULFDOSRZHUV\\VWHPLVLQGHSHQGHQWDQGGHGLFDWHGWRLWVUHVSHFWLYH'*
7KH'*VWKDWDUHVXSSRUWHGE\\WKH'*'&HOHFWULFDOSRZHUV\\VWHPVDUHDUUDQJHGLQ
UHGXQGDQWWUDLQV LH'*$$DQG'*$$DUHLQ7UDLQ$DQG'*%%DQG'*%%
DUHLQ7UDLQ% :KHQRQHRUWZR'*VLQDWUDLQDUHLQRSHUDEOHWKDWWUDLQRIVWDQGE\\
HOHFWULFDOSRZHULVLQFDSDEOHRISHUIRUPLQJWKHVDIHW\\IXQFWLRQDQGPXVWUHO\\RQWKH
UHGXQGDQW'*WUDLQWRPLWLJDWHDQHYHQW/LNHZLVHLIRQHRUWZRRIWKH'*'&WUDLQVWKDW
VXSSRUWWKH'*VLQWKDWWUDLQDUHLQRSHUDEOHWKDWWUDLQRIVWDQGE\\HOHFWULFDOSRZHULV
LQFDSDEOHRISHUIRUPLQJWKHVDIHW\\IXQFWLRQDQGPXVWUHO\\RQWKHUHGXQGDQWWUDLQWR
PLWLJDWHDQHYHQW7KHUHIRUHWKH/&2UHTXLUHV7UDLQ$DQG7UDLQ%'*'&HOHFWULFDO
SRZHUVXEV\\VWHPVWREH23(5$%/(WRVXSSRUWWKHUHGXQGDQF\\RIWKHVWDQGE\\HOHFWULFDO
SRZHUV\\VWHP
,QLWV1RYHPEHU OHWWHU(QFORVXUH6HFWLRQ³$VVHVVPHQW'WKHOLFHQVHHVWDWHV
HPSKDVLVDGGHG
$'*EDWWHU\\VXEV\\VWHPLVSURYLGHGIRUHDFK'*(DFKVXEV\\VWHPLVFRPSULVHGRID
EDWWHU\\GXDOEDWWHU\\FKDUJHUDVVHPEO\\GLVWULEXWLRQFHQWHUDQGFDEOLQJ
7KH15&VWDIIKDVLGHQWLILHGWKHIROORZLQJDSSDUHQWGLVFUHSDQFLHV
x
,WDSSHDUVWKDWWKH'&SRZHUIRUD'*LVSURYLGHGE\\D'*'&HOHFWULFDOSRZHUV\\VWHP
LQWKH-XQH OHWWHUEXWE\\D'*EDWWHU\\VXEV\\VWHPLQWKH1RYHPEHU
OHWWHU
x
,WDSSHDUVWKDWDGLVFXVVLRQSURYLGHGLQWKH-XQH OHWWHUGLGQRWGHVFULEHWKH
UHODWLRQVKLSEHWZHHQWKH'*'&WUDLQVDQGWKH'*'&VXEV\\VWHPV
7KH15&VWDIIUHTXHVWVWKHIROORZLQJLQIRUPDWLRQWRDGGUHVVWKHVHGLVFUHSDQFLHV
&ODULI\\ZKHWKHUD'*'&VXEV\\VWHPRU'*'&V\\VWHPVXSSRUWVHDFK'*
&ODULI\\WKHUHODWLRQVKLSEHWZHHQWKH'*'&WUDLQVDQGWKH'*'&HOHFWULFDOSRZHU
VXEV\\VWHPVLQWKHDERYHPHQWLRQHGSDUDJUDSKLQWKH-XQH OHWWHU
((2%5$,
,QLWV-XQH OHWWHUWKHOLFHQVHHSURSRVHGDUHYLVHG76&RQGLWLRQ'DQGDVVRFLDWHG
5HTXLUHG$FWLRQV''DQG'WRVWDWH
&21',7,21
5(48,5('$&7,21
&203/(7,217,0(
'
2QHRUWZR'*'&
EDWWHU\\FKDUJHU V RQ
RQHWUDLQLQRSHUDEOH
'
5HVWRUH'*EDWWHU\\
WHUPLQDOYROWDJHWR
JUHDWHUWKDQRUHTXDO
WRWKHPLQLPXP
HVWDEOLVKHGIORDW
YROWDJH
$1'
'
9HULI\\EDWWHU\\IORDW
FXUUHQWDPS
$1'
'
5HVWRUH'*EDWWHU\\
FKDUJHU V WR
23(5$%/(VWDWXV
KRXUV
2QFHSHUKRXUV
KRXUV
,QLWV1RYHPEHU OHWWHU(QFORVXUH6HFWLRQWKHOLFHQVHHVWDWHV
$'*EDWWHU\\VXEV\\VWHPLVSURYLGHGIRUHDFK'*(DFKVXEV\\VWHPLVFRPSULVHGRID
EDWWHU\\GXDOEDWWHU\\FKDUJHUDVVHPEO\\GLVWULEXWLRQFHQWHUDQGFDEOLQJ><<@(DFKRIWKH
FKDUJHUV QRUPDODQGDOWHUQDWH LQWKHGXDOFKDUJHUDVVHPEO\\KDVDGHGLFDWHG$&
VRXUFHIURPWZRUHVSHFWLYH9$&'LHVHO*HQHUDWRU$X[LOLDU\\%RDUGV,IWKHQRUPDO
FKDUJHULVXQDYDLODEOHWKHDOWHUQDWHFKDUJHULVVHOHFWHGE\\WKH9'&WUDQVIHUVZLWFK
LQFOXGHGLQWKHDVVHPEO\\
7KH767)5HYLVLRQDOORZVIRUDKRXU&7IRUDQLQRSHUDEOHEDWWHU\\FKDUJHUEDVHGRQ
WKHFRQGLWLRQWKDWDQDOWHUQDWHPHDQV HJVSDUHEDWWHU\\FKDUJHU RIUHVWRULQJEDWWHU\\WHUPLQDO
YROWDJHWRJUHDWHUWKDQRUHTXDOWRWKHPLQLPXPHVWDEOLVKHGIORDWYROWDJHKDVEHHQXVHG
7KH15&VWDIIKDVLGHQWLILHGWKHIROORZLQJDSSDUHQWGLVFUHSDQFLHV
x
,IWKH:%1'*GXDOEDWWHU\\FKDUJHUIRUHDFK'*EDWWHU\\VXEV\\VWHPRQRQHWUDLQLV
GHVLJQHGVXFKWKDWWKHDOWHUQDWHEDWWHU\\FKDUJHULVVHOHFWHGDXWRPDWLFDOO\\ZKHQWKH
QRUPDOEDWWHU\\FKDUJHUEHFRPHVLQRSHUDEOH76&RQGLWLRQ'ZLOOEHHQWHUHGRQO\\
DIWHUERWKWKHQRUPDODQGDOWHUQDWHEDWWHU\\FKDUJHUVEHFRPHLQRSHUDEOH,QWKLVFDVHLW
DSSHDUVWKDWWKHUHZRXOGEHQRDOWHUQDWHFKDUJHUWKDWZRXOGEHXVHGWRUHVWRUHWKH'*
EDWWHU\\WHUPLQDOYROWDJHWRJUHDWHUWKDQRUHTXDOWRWKHPLQLPXPHVWDEOLVKHGIORDWYROWDJH
ZLWKLQKRXUV 5HTXLUHG$FWLRQ' DQGWKXVWKHSURSRVHGKRXU&7IRUUHVWRULQJ
WKHLQRSHUDEOH'*EDWWHU\\FKDUJHUWRRSHUDEOHVWDWXV 5HTXLUHG$FWLRQ' FRXOGQRWEH
XVHG
7KH15&VWDIIUHTXHVWVWKHIROORZLQJLQIRUPDWLRQ
'LVFXVVWKH76UHTXLUHPHQWVIRUDQRSHUDEOH'*EDWWHU\\VXEV\\VWHPDQGDQRSHUDEOH
'*'&WUDLQ,QFOXGHLQWKHGLVFXVVLRQWKHQXPEHURIRSHUDEOHEDWWHU\\FKDUJHULQWKH
GXDODVVHPEO\\WKDWLVUHTXLUHGIRUDQRSHUDEOH'*EDWWHU\\VXEV\\VWHPDQGIRUDQ
RSHUDEOH'*'&WUDLQ
([SODLQZKHQ&RQGLWLRQ'ZLOOEHHQWHUHGDQGSURYLGHWKHDOWHUQDWHPHDQVWKDWZLOOEH
XVHGWRUHVWRUH'*EDWWHU\\WHUPLQDOYROWDJHWRJUHDWHUWKDQRUHTXDOWRWKHPLQLPXP
HVWDEOLVKHGIORDWYROWDJHZLWKLQKRXUVWRDOORZWKHKRXU&7IRUWKHLQRSHUDEOH'*
EDWWHU\\FKDUJHU