ML20091K733

Safety Evaluation Supporting Applicability of Unit 1 License Conditions to Unit 2

ML20091K733
Person / Time
Site:	05000000, LaSalle
Issue date:	05/06/1983
From:	Office of Nuclear Reactor Regulation
To:
Shared Package
ML17139C189	List: ML20090A661 ML20090A666 ML20090A681 ML20090A687 ML20090A754 ML20090B244 ML20090B269 ML20090B522 ML20090B617 ML20090B711 ML20090B723 ML20090E718 ML20090G556 ML20090G651 ML20090H476 ML20090H564 ML20091K497 ML20091K517 ML20091K531 ML20091K537 ML20091K546 ML20091K565 ML20091K568 ML20091K579 ML20091K592 ML20091K640 ML20091K652 ML20091K658 ML20091K681 ML20091K683 ML20091K686 ML20091K733 ML20091K752 ML20091K761 ML20091K766 ML20091K782 ML20091K786 ML20091K791 ML20091K800 ML20091K807 ML20091K822 ML20091K892 ML20091K928
References
FOIA-84-105 NUDOCS 8406070183
Download: ML20091K733 (6)

Text

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S Ac ETY EV Q LU A T T ON DE00DT LacALLE C OU NT Y ST ATION U NIT 2 In a l e tter da ted Ma rc h 18, 198 3 f r om C.W.

Ochroeder to th e Di rec tor NRR, Co mmo n weal th Edison Co m pa ny di sc uss ed th e a pplic a bi li ty to La Sa ll e U ni t 2 o f lic ens e e ondi ti ons wh i c h a re c urren tly in pl ac e for La Sall e U ni t 1.

We have revi e wed th es e license c ondi tions and our posi tion on ea c h wi th rega rd to LaSalle Uni t 2 is provided.

U ni t 1 Co ndi tion 2.C. (17)

P r es s ur e In +erlocks o n Val ves In terf ac ino at to w a nd Mich pr es e u r e (See ti on 6.3.4, SER #2)

Prior to s ta r tup a f ter th e firs t ref ueli ng o u ta ger the lic ensee shall impl emen t iso la ti on pro tec tion in co nf ormanc e to the require-men ts o f Sec ti on 6.3 o f th e S ta nda rd Revi e w Pla n a ga i ns t o ve r-pres suri za ti on of th e lo w press ure emergency core cooling sys tems C RH R/ LPCI and LPCS) at the hi gh and t o w press ure in terf ac e c on-ta i ni ng a check val ve and a c lo s ed mo to r o pera red val ve.

Pos i ti on o n U ni t 2 Th e lic ens ee has indic a ted th a t a n a cc ep ta bl e desi gn modi fica tio n wi l l be i ns tall ed prior to th e iss ua nc e of th e U ni t 2 L ic ens e.

We th e ref ore c oncl ude th a t this lic ens e co ndi tio n is not required fo r Uni t 2 provided tha t the lic ens ee veri fi es th a t th e is ola tion pro tec-ti en modi fic a ti on is co mpl e ted prior to issuance of th c U ni t 2 Lic ens e.

8406070183 840319 PDR FOIA BELL-105 PDR

I 2-j Condi ti on 2.C.(30).(j) orocer F une tio ni ng of Hea t Re no va l Sys tems (II.K.1.22, SER, S S E R # 2, and II.K.3.13,

___s..

SER, SSER # 2)

Th e lic ens e shall i mpl em en t th e lo gic to res ta r t a u to ma tic ally the core is ola tio n c oo ling sys tem prior to s ta r tup a f te r th e fi rs t re f ueli ng o u ta ge.

Po s i ti on on U ni t 2 Th e lic ens ee has s ta ted th a t the required modi fica tion ha s been ins tall ed on Uni t 2.

This co ndi tion is th e re fo re no t required fo r Uni t 2.

Co ndi tio n 2.C. (30). (k )

M c!i f y Break De tee tion Logic to Prevent Sourious Isola ti on of Hioh Pressure Co ol a n t In iec tio n and Reae to r Core Isol a tion Coolino Svs tem (II.K.3.15, SER SSER #2)

Prio r to s ta r tup a fier th e fi rs t refueling ou ta ge, the lic ens ee shall impl emen t a c i rc ui t mo di fic a ti on t> assure tha t tra ns i en ts mo ni to r ed by pressure ins trumen ts to s ens e flo w in th es e two sys tems ac tually s ens e c on tinuous hi gh s team flo w.

Pos i ti on o n U ni t 2 Th e lic ens ee has s ta ted tha t the raquired mo di fic a ti on ha s been ins tall ed on U ni t 2.

Th i s ' co ndi tio n is th e re fo re no t required f o r U ni t 2.

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. Condi tion 2. C. (30). (L )

Mo di fic a ti on o f Au to ma ti c Deores s ori za tio n Svs tem Lonic - F ea si bili ty fo r Inc r ea s ed

_Di v e rs i tv for So m e Event Secuences (II.K.3.18, SER, S S E R # 1, SSER # 3)

(a)

By Oc to be r 1982, th e L ic ens ee shalL eval ua te th e a l te rna ti ve desi gn modi fic a ti ons of th e BWR O wne rs G ro u p ret a ti ve to the Logic fo r th e a u to ma tic depress uri za tio n sys tems s ubmi t such sa t ua ti on, a nd pro pos e mo di fic a ti on to NRC for revie w and t

a ppro val.

(b)

Prior to s ta r tup a f ter th e fi rs t ref ueling o u ta ger th e Lic ens ee shaLL im pl emen t the a pproved at terna tive L ogic mo di fic a ti on o f th e a u toma tic depres s uri za ti on sys tem.

Pos i tio n o n ti n i t 2 Th e s ta f f eval ua ti on on this i tem is provided in a memo from R.W.

Houston to T.

Novak:

" Modi fica tio n o f A DS Lo gi c F o r La Sa ll e; Ac tion Plan I tem I I. K. 3.18 ", da ted April 4, 1983.

Pa r t (b) of this L ic ens e co ndi tio n s ho ul d be applied to U ni t 2.

\\

Co ndi ti on 2. C. (30). (m)

_Res ta r t of Core S ora y and tow Pressure Core In iec tion Sys tem (II.K.3.21, SER, SSE R #2)

Frior to s ta rtup a f ter th e fi rs t.r e f ueling o u ta ger th e L i c ens e e shall provide an au to s ta r t for th e hi gh press ure core s pray.

., 4 Pos i ti on on U ni t 2 Th e L i c ens ee has s ta ted tha t th i s mo di fica tio n has been ins tal L ed sn Unta 2.

Thi s c ondi.ti on is therefore no t requi red on Uni t 2.

Condition 2.C.(30).(n)

Automatic Switchover of Reactor Core Isolation Coolino System Suction Verifv procedures and Modifv Desion (II.K.3.22, SER)

Prior to startup after the first refueling outage, the licensee shalL implement the automatic switchover of the reactor coce isolation cooling system suction from the condensate storage tank to the suppression pool when the ' condensate storage tank is Low.

Position on Unit 2 The Licensee has stated that this modifi-cation has been installed on Unit 2.

This condition is therefore not required on Unit 2.

Condi ti on 2.C. C34)

Th ro uch the Fi rs t Fuel Cycl e o f Pla n t Ocera ti ons Technical Soec i fic a tion 3.4.1.1 is Modified for One Rec i rc ul a ti on Lo oc ou t o f Servie e wi th Provisions

(a )

Th e s tea dy -s ta te th e rma l po wer Level _uitL not exceed 50 perc en t o f ra ted po wer.

( b)

Th e mi nimum c ri tic al po we r ra ti o (M C P R) sa f e ty limi t wiLL be increased by 0.01 to 1.0 7.

(c)

Th e minimum c ri tic al power ra ti o li mi ti ng c ondi ti on fo r o pe ra -

ti o n (LCO) wil L be increased by 0.01.

(d)

Th e maximum a vera ge plana r Linea r h ea t genera ti on rate (MAPLHGR)

Limit wil'l be reduced to 85 oercent of its normal value.

(e)

Tech ni ca l Speci fic a tion Se tpoin ts shal L read as fol to ws :

T.S.2.2.1 S 0.66W + 4 5.7 (Tri p S e tpo i n t)

S 0.66W + 48.7 ( AL L o ua ble)

T.S.3.2.2 S

(0.66W + 4 5.7)

T*

S kB (0.66W +.36.7) T*

T* as defined in T.S.3.2.2 T.S.3.2.6 APRM Upscal e 0.66W + 36.7 (Trip S e tpoi n t) l AP RM U ps c a l e 0.66W + 39.7 ( AL L o wa b Le) l RBM U ps c al e 0.66W + 34.7 (Trip Se tpoi n t)

RBM U ps c a l e' O.66W + 37.7 ( At to wa bl e)

• (f)

Th e a vera ge po we r ra nge mo ni to r ( A P RM) flux nois e wi l L be meas ured onc e pe r s h i f t;.a nd th e r ec i rc ul a ti on loop flo w wi l L be reduc ed if the flux noise averaged over 1/2 hour exceeds 5 perc en t peak to peak, as meas ured by th e AP RM chart r ec o rd e r.

(g)

Th e c o r e pla te del ta P nois e wil L be meas ured o nc e per sh i f t, and the r ec i rc ula d o n L oo p flo w wil L be reduc ed i f th e n oi s e exc eeds o ne (1) ps i pea k-to pea k.

Pos i ti on o n U ni t 2 Th a Lic ens ee has reques ted th a t this L icens e co ndi tio n be included in th e U ni t 2 L i c ens e.

Sinc e U ni ts 1 & 2 a re iden tical fo r La Sal L er o ur eval ua ti on of singt e loop opera tio n for U ni t 1 pro vi ded by memo ra ndum da ted Dec em be r 14, 198 2 f ro m T. P.

Speis to T.

N ova k "Sa f e ty Eval ua ti on o f La Sa l L e Co un ty S ta tion U ni t 1, Si ngt e Lo o p Ope ra tio n" i s a pplic a bl e.

The

~

a bove Lic ens e c ondi tion may therefore be a ppli ed to U ni t 2.

i Summa ry j

We ha ve reviewed th e L ic ens e e 's proposal r e ga r di,n g th e a pplica bili ty o f La Sa ll e -U ni t 1 L ic ens e 'c ondi tion.s to La Sal L e U ni t 2, a nd co nc luder as disc uss ed a bo ver tha t 6 ey a r e a c c e p ta bl e.

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