ML19326A127

From kanterella
Revision as of 17:44, 18 February 2020 by StriderTol (talk | contribs) (StriderTol Bot change)
Jump to navigation Jump to search
Application for Amend to License NPF-3,requesting App a, Tech Spec 3.4.1 Reflect Change to Appropriate Tables & Figures Due to Incorporation of Actual Reactor Pump Coastdown Characteristics.Safety Evaluation Encl
ML19326A127
Person / Time
Site: Davis Besse Cleveland Electric icon.png
Issue date: 10/23/1978
From: Roe L
TOLEDO EDISON CO.
To:
Shared Package
ML19326A128 List:
References
NUDOCS 8002030007
Download: ML19326A127 (9)


Text

{{#Wiki_filter:. [: APPLICATION FOR AMENDMENT TO LICENSE NO. NPF-3 FOR DAVIS-BESSE NUCLEAR POWER STATION UNIT NO. 1 Enclosed are forth-three (43) copies of the requested changes to the Davis-Besse Nuclear Power Station Unit No. 1 Technical Specifications, Appendix A to License No. NPF-3, together with the Safety Evaluation for the requested change.

                                                                   ,, -' , -         .- ')
                                                   ']        f          'p          js'   ,-

By .-M/40' -

                                                                                 ' i d r' Vice President, Facilities Development Sworn to and subscribed before me this twenty-third day of October, 1978.

52 2 === Notary Public FRED W. GERMAIN Notary Public - State of Chio My Commission Empires Oct. 30,1982 _ f,s al b/7 8 0 02 0 3 0M] gg-

DB-1 REQUESTED CHANGE TO THE DAVIS-BESSE NUCLEAR POWER STATION UNIT NO. 1 TECHNICAL SPECIFICATIONS (appendix A to License No. NPF-3) The following attached pages have been :nodified to show the requested changes: Page 2-3 Page 2-5 Page 2-7 Page 2-8 Page B2-5 Page 3/4 2-14 Page 3/4 4-1 J al d/S Attachments Mu~ m i i r

M D D "D [ f AW W w n J'bie l l Ihf l l ll !f I b' ! b l l l bi I  ! '! !b lh lll 120

                          ! l.
                                                        !!       i II
                                                                 --           -ll         --

i li } li lill 120 liil L 11 } ll ! i Nl le 'i.;  ! I.

               . --      -l ;I l}D i li HD                                 -35.0 !                                                               '! jji ;; ;;ll li; ,+20.0 jijj qll pij                                                                                             isp il ;                   i i!;
l. :: . :p iii, 11::.0 J i .
                                                                                                                                                .     !. tu             n 49                            -
                                                                                                                                                                                                                       ,11::.0 ;;;; !;";; i:;- J:I ij,! !i; it; I                                          ;;;i                              ,*
                          ).i.      i}"!!I'n !!"3'F.:.. ;                                                       x;u                    "a       '           P                    '                                  -

e Ulti i Y Ki! % ' ' l.'ii "l! l.!! l ! I'T..' ill hi! I l; I' I'll i,. i. i.h.!l ..l.i!!h.!. I. '

                                                                                                                                                                                                                                                                                                   !l.. !..!I !.li i:,                .             .   .
                                                                                                                                            !.i l!                ,                                                                    .i                   .
       .                    !:i
                           .~       _.! i !.!i .:                             l! !          Il            l t_:                  {_l     .!.I l                 it       .                .I           i. ill                          , P,      '"!        !id !!N UJ                     f;j!'        i i:
           ~ Soo                                                   .

li,ii

                                                                                                                         .                                                                                                                                        .i
                          ' :D W                                                                     '

i! i ! li f Il ' !!; li h  !!r .,J  !{l !q if in p l

5. 0 l'.Hijig!llli :  !

l I! j l.a ia r ill: +20.0 i o , ;l ..8 r U!hhh b5.0;!. ; .. , . l'  ! !h, h.h 20. 2p d]. 98,Un ! hi !! i IIl! J[II! lJ ' p54 il! O i 1. i II li l lil  ! ( h !!I ss.s ! [, { [h 1 h; y{ I!i l, ' 30 4'! l!

                                                       .V!W                  l!'lli .!!"'                               l I

i l Il l !  !!!! .lIlM'E I Nl I

                                                                                                                                                                                                                                                                                         !T !!! Wl '.i!!
                                                                                                                                                                                                                                                                             ! l l U d ini fu
                                                   ~

h I l l [  ! l  ! l l l l ll l l! .I I

                                             !              i
                                                               .j j          i       i             l                                       !           I         i                                   I   f                  l                                       S li           :        fi    b!!                   !
                                                                                                                                                                                                                                    ;j                                                                                      U
                                                            !                                                                              i
                                                                                                                                                              'i                                    '

h[' i ':) yj! -lli hp!

                        ]!.                       :                      ;                                                      i                                                                                                                                                                 h!!

h

                                                                                                                                                                                                                                                                                                           !!i
                         .h! ;!                   !         '  t         i                         ,                '

i  ! l . n I+:ll' U71,s ' , . ' il l!! hi' M , 60 i l-l! -l  : II -];! '

                                                                                                                                                                                                                 !I                     l'-          !                  ;

I, i- ! - l N5.0ij I i pj .fo,0 ;I

                                                                                          !                 !!                     ;                                                                         9l            il ji                                                                          (: ll!!
                                                               !                                                                                                             ! l l' ;
                        ;n!a5      m- ,' '

8  ;

                                                                                                                                                 -.lw=ll0 I
                                                                                                                               .!'                                                                                                                                                      .p l g,p !;g g h,.

l  ! p.. . ll l 1 lll y  !

                                                                                                                                                                                                                                                     . .g . 3.,.3. . lh,
                                                                                                                                                                                              -     t                    ...       ..

l ll...Ili l !!! IUj il.! lI E !' !'!!

                         !h, 2!                  l         .l           I
                                                                                                   !                                     l            T          '

l

                      ' : I'. ,

ej '

                                                                                                                                                      **                 ;- t,                     ,

q - ci : n ..n E, '

                                                                                                                                                                                                                                  ).                                   I h;i l-l C; H lhi Hj;         <:

i . 1 { 1 t -

                                                                                                                                                                                                                              .                i i "40 l                          .                                                   J.

n ( i II'; :r C i j 1 'l 'l l'::i :w i i ,  ! I ,i O! : b.; il .!

                                                                           ,                                       i E}!                                          ,    ,       i g

i . i

                                                                                                                                                                                                                                                                                       ;          w       -            ~

h w,

                                                                                                                                                   .w!                                                                                                                     '
. bf, I l. 1
                                                                           ,!,      l                                                                                                             ! !. .                                                 Ib                    .! 'a.f b
                                                                               ;              J l          !                                  ::                                           . un .}ij i                                            i .t. i            (, jo w; Un :1-oc w                              !         y                                              -                                  -                                                 ' il in       =                     -

l .' - l' li ,  ! 0. p- i ! i!  !!H

                                                                                                                                                                                                                                      ' 'oy L                                                     =t ;, go a
                                                                       '               ;j                          l                                                                    I
                                                                                                                                                                                                        'pl lll0 i...
                                    $ j a

d -

                                                                                                 ,                                                 f
                                                                                                                                                   .s d

o j .g i r

                                                                                                                                                                                                                                                                                                  $!                 ;-y a;     -

e

                                                                                                                                                      -                                                                           6                               I.

2: i , vi  !  ;

                        .? e li.;1       ,                                             ..   ...i                             __          .              ,g                      .
                                                                                                                                                                                         .L.            ....
                                                                                                                                                                                                                      'l          !
                                                                                                                                                                                                                                                    ..            ',                              ci 7,, .r -

If

                            ~ 2
                                    =                                                                                                                              ?

l!. 0- . UU' '

                   . 40                                               40                                           20                                               0                       ,
                                                                                                                                                                                                                        +::0                                               W                           ,
                                                                                                                                                                                                                                                                                                                     +60
                                                                                                                                                                         ~

AXIAL PCWER IMSALANCE, %

                                         .                                      CURVE '                                                REACTOR CCCLANT FLCW (GPM) 1                                                                                                       :87,200 2                                                                                                       290,100
                                                             .             N 3                .

191,000

                                                                                  . Rgure 2.12. Reac:or Core Sefety Umit                                                                              ,
                                      ~

DAVIS-8E55E. UNIT l' ,

                                                                                                                                                            ~2-3                                                                                                                                              Amer &EEt No.
                              '                                                       l i
                                                                                                                                      *
  • l
                                                      )                               l                                               *
                    -
  • i g 'f. #g P

w#p , i i

                                                                                                                         .             s          s        i E                  R               Ro                          d2                    p          p         s W                  E               E o                          e -                                        p O                  W                Wl                          e2                 5          5 P                  O#              O                            c                                       )
                                                          #          Pg              Pl       e x2                 6          3          4 L )s                       n               c                    e                  7          6         6 At       i l   .i          La                                e             9          3 Mi Rt At Ma Ae 4

or 1 2 3 e n t u 7 E a R r l g > 1 8 l i r E e Ei ti 7 T e l i p l i of p T o Tg nf - Do n i S E Ds Dt so F E T s E p Et e

  • U e Ap T n Ta ue a a L l R n i

Aia Ar l n n g gg A V b u Rp R e. ai i i a f p p # Vl s s E c o r f e f o F p p T i oer o p

  • et l

t l p %u% o h In 8 0 li b m 0 0 5 l A W A p 6. f 4.! 5 8 S.t . i u p 9 ai wl , 4 8 6 5 2 6 O s S T L L t o 0l 1 l i 7 O h S t b e n 1 6 l e lh o 9 1 2 3 1 ( [ N I A N 1w eiw 3o 1 At > 1 >_ O P T E S h

                                                             .                      t P                                                        i I

R R w p T E R Ro W E E o g N O W Wl i O P O O s I P g Ph p T Lg n c A An Li La f ) T N Hi At Ha Ae o 3

               .                                 Rt a                        H                                                                    7 1        E                                        t r       Rn                                 e 2
                   -      H l

i El i e l r l E l ip e Ei l on ti 7 8 i R p T o Tg l - 2 T Do n t S E ) I s Di ot E N T s E p F Et ni *

                                      'e         Ap                T m.

I t i l T R am Ai s T a - l A T M E N l l b a f p a Rp Re Ar p ti nl1 g g g o c i - g T o f e f > ( oe2 i i T S Y r i r oe o n i s s

                                                 %u%                       r T

du ap p p l p t t2 5 S E F e 2 S p t Sde N O P A 6. 5 0l 76 h sfo8 3M h Mp t

                                                                                                    '9 1           peu er 5

8 9 5 S 3 6 1 e I T C E T I R t N-o 1l 1W i Gt-

                                                                    <w .

idn io 6 ico rxl TeF 1 2 1 ( l o R P I I R I O e T r C ) u A 1 t E p e ( R r a i r w I r _ o T u I e _ t a l I e p r r F e r m

                                                                                                                -                  r          u         e o                                                           e          x                   u          s        T t                               .                            p          u                   s          s           -

c n i l s e e T a e F e r r I e x T r P u N R u A P s U l h 1 s l F . g - w 9 e L a i

o. 1 r A u h i x 1 P

N n g l u 1 1 O a i C l C C C I T M i l R F R R R C N U . . . . . . . F 1 2 3 S 4- 6 7

                        <g        i N          iq,.

i Y* kn E - O o n

   ,   ,   I i ,                       '                                 i

l f ll l lll0OllIllllllllllNllllll l l l l l lll ll ,i l

             , 120-             -        ,

i i ll f M NN.U- + 120 r i! l lilll !ll l! " l ll'l I-I IV ll l!

                                                      !!ji                                                                                                                ll!! l; i !ii l l'                                     liil !!Ij iji l it lill ll                                                        ml il i l i                                               !                 1           l l!     !                                                                                     I
                          ,Sbd !.bd !.llllI                                                                I          II    i   !!       Il J;.

N'/. Illl00l  !]jl!!! !!!! l1ll!.bl0!.0!!{h  ! jj l[l .:. i ,lheso@iF 1 !il igi il s  ! i lites. il' i,! lll ll1 1

                                                                                                                                                                                                         .. 2,l i .l i: : 3 ijp:

t i l m hl j@lill!!U {!i[ hll !!!i kil! ii I it! ii ! ii ,,!!; i h.4r, i.:.!j

p. .. -

li . ..,  : , il lill o

               , :l!! !!

i l I i U ll l' illi. FCUR PUMP li pij '!;; li; \ :it.,1bill:y pi: !i j i i jp li; h ':i i t pll!' umir Linss i qI i '" " p.'i

                                                                                                                                                                                     -zo.a-g i! it i-              i lig ip g!L     i
                        ;d j {'!d;g!J ,', ,;                                                          3[ .I l                                                                        92.0 ;                                               ! j!

j , .g , 1! j:4o.ah 2a p l .uli l ': ] ! l i ! I., i ts.: : !i ! ! i l .i !.0 j'!. [j!. j '  : so - .l i !_78 2- ..i  ! 8i $f ll ! l l '

                                                                                                                                                         !! iih l !! l                             [ l .l Ml'!                                                                                                                                                                                                               ! lj i s l I

I 1:! t. I !!! i Ml,(1 l .I l  !!  !!

                                                                                                                                                                         }.( +20.6 .l                                     i            e'      ii ! l !                     I iu a ..j; p j!                                i              imREE PUMP Il Ill                    64.7              ill I                       I           'l'     ;

llf[[@' i a' . I iumir unas - n; i. l.ll:ij  :  :,.. ln [IO' i S li  !! ! l I. ; l i ll!! t I I [ ['Ii

                                                                                                                                                    'lijii nl            .i ijl r!! i' lli l                                                               E i!;; gil        ;i e/ti!I d

l[[n $12.s L ] .ili-0  !! i i I [Dit i=- ,i;"lo'd i U4. i [j j ,j,! il!

                                   . ss.7                                                                                                                                      :                                       i.

j, , F iin lh

np r i  ! 50 =~! ' ' '

I so.s ' h l I h ! I; [r '; l i ' i' )/jl j! j'j !ill ~i ]ll

                                                                                                                                                    ~
                                                                                                                                                           ;                      Tii                  ll :I~                      '

E pi i?"

                                   . l f                    !                !

f b, 4l'l i "l'll i$' \ lh

                                                                                                                                                                                                          ,ilj              l   li li$5                    i    I!

f=3b.il IEi fll! kllh l f l  % 20.c J'*j  !

                                                                                                                                                                                                                                .ji l'                     l[

h:llN

- f i l,l 4 I
37.  :'

LL ll l (l }! It t t !  : TNOPUMP , I h,

                                                                                                           ~

[-h .l .k'.o f , l ,, {l! [(g[l] i If h }!!!!{

                       'z
                       .<f         j,oF'- allt l ag                      n    i LIMIT  I 9 !! UNCS                         3c :iu ::dI i

[! j j : p

i i. He r: .ie :r:

jl ! f'j ll IH.! i  !  !!!! i[ j.'l

                                                                                 '                        l                                                                                       l                              -

20 j :N .I '.- !'r I

                              -                                           fIl                   !      --l   -
                                                                                                                  ;w $ 5:

u- *- -] [ll I

                                                                                                                                                                         ,I
                                                                                                                                                                         -                     +l                               'i!i [3 l!!l lll!

pI I r! Il Oh "l l i$UE {lI- l! .!! ' I!i

                       -r I                                           ll b E E:                  .             I l                               l lf l              I
                                                                                                                                                                                                                 -hli if
                                                                                                                                                                                                                  -              [ll u..                           l       li   !
                                                                                                             -pu=2nl                                                                                                                                         }, llji I

h l l i l l l l a

                                                                                                                     $$,$1 l            l !  i      _            _.
                                                                                                                                                                                                                 'l                                            .l lfi I51AL PCWER IMSAI ANCE, Y.
                                                                                                         ~                                            ~ -                        ~

Vid:M 2.21 Trip Setpoirit for Rux--IRuxlRow l

                                                                                                                                     ~'

DAVIS-BE53E', UNIT'l 2-7 k:Ec=en: No.

O hl l* l l hPOWERllllllllllibbllbf[lhll!!lf l

                                                                                                                                                                                                                                                                                                                                            '!j' li
                             ~ . -

2 I

                                                            )          l N'

ili P I i'M I I I l% RATED THERMAL i i 'i n t ut

                                                                                                                                                              !l                 l int l i l1:0l lii' pj.
                                                                                                                                                                                                                 ;i     1t[do                     ,.ili  jd
                                                                                                                                                                                                                                                                           ;i h...l hh            ,   ['

h: }.tl h' j* lgj 'g! qj l l! iij: llp: ipj

                                                                                                                                                                                                                                                                                                                         .hl
                                                                                                                                                                                                                                                                                                                               ].d[
                                                                                                                                                                                                                                                                                                                                !m i: l]t"
b. U!.

I - f i '.l ll j

j p  :

lll {. inli .:ll in i il i j i.:  :. ... g l 1 Il  ! i l i l l'l '  !' ! l.- l.f T Y.iNi ll lltl fh.. 1  ! h jl!' fl l ii ;!!i 1-

                                                                                                                                                                                                                                                                                                                               ;            !!!! i!lj
                                                                                                                                                                                                                                                                                                                                                                .        ~

If.gg ii ,[ljIiyll ' [ li - 22.25' NM!hi! .i;ir s. j qq gj j ggj iig

                             ..                  i il
p. jemio..i+,i...iy },n /95j:in #" g' u.e. e n..

9.l bn,d, ., .I o, .f H i

                                '100
                                                                       .     .                   I                                     I MCUR N.V?                                                         :                                                                                                                                   el
                                  ,                  U        l' l!I lI l'l:! l 1: ' lYH l l                                       !                                                                    'I                I llI!{ I"i :.j :N ^!lli! li:bl ditjlh leIh Od !!h!h! !$I'
                                                                                                                                                                                                                                    .N                                   Ii                                                                Ih il !P ti                                      3 I                                                                                   '

s .I l,[Il l

                                                              !l l

i  !: ! P/ I l l

                                                                                                                                                       !ll!

l l

                                                                                                                                                                                        @l' !n I

iH lp1 i f Il l!ll i a :h no.s-91 S li Un cl: llr. fl ; jpt U

                                                                                                                                                                                                                                                                                                                               .U I.

n!! :lL

                                                                                                                                                                                                                                                                                                                                                       .". ?

lp 'll Ii

                                                                                                                                                                                                                                                                                                           ,l'!n: n'd....!
                                                      !!                     --t                                       i       i                                                            !
                                                                                                                                                                                                                                                                                                %,p l                                                  !                        - 22.25 ;                            :    ..

J q 1 t.7 . y :l i i;; I

                                                                            ,as.o.S                                  /* .l ,73.::5.                                                                                             l7s.4,ig:!.l
                                  'so             ..

I!. i pl ll I ll !.!!l. ., , 9 y @!. jp.l ipi ' ije b  ; O b .  ! /lilVilllibliljil'il 1 i is i  !

                                                                                                                                                                                                                                                                                                !!         dI lh!Il'b',L!U.

llli i l! : il j' . l i i' l THREE i: UMP UMIT UNES l Ilil 1j !! l . P! '! !l il i lj!j lI f.I!n'! .h...!! jh " :'UE I'iu'- f'

                                            'b                  d.;h!

l

                                                                                                                                                                                                                                                                        'hl
                                                ;B't               i ;it Hl ib
                                                                                          'i' l

i: i P il il' ly I

                                                                                                                                                                                           ', ii :            ll.'       l               l0 u,!,!n :I -
                                                                                                                                                                                                                                                           .             kg"3 @                            h W .:     iO i                "' @

U" ul ,i 'in i

                                                                                                                                                                                                                                                                                                           .c gg i-i s

I. . i I.p. I  ! . i e r .u,i : . p1 11 .e

                                                                                                                                                                                                                                                                         ~.p.      . i. , . . n.                 :
h. .' :i h. rd'. n,
v. .'?ii n.l
                                                                                                                                                               ,J l g'                     i
g. i. . .. . . . . .

if 3: ! {";7T:  :

                                                                                                    .i          ! lh l U2.in ' i. i i
                                                                                                                                    ! 50.7.:Si ! ll l ll.W 1 l i i li id! ;50 705 lI11.'Nh j! ! UU                                i itii lnliii;!.

l ;i ll.!!!$I S; .Hi 7 " T T

                                                ;g - f I f 1. !!                                                ; Ij'il.             I     '

i i  !!:! :Oi  !

                                                                                                                                                                                                                                                                                                                  j!.Z:l'
                                                                                                                                                                                                                                                                                                                     ! :!:: N lP,!! !.   ,                ;'.
                                                !w l!

[ f. i H l y:0@l@h%l@y..

                                                                                                                                                    ..;oPuMP
                                                                                                                                                                                                             !l..ll. l;                       h' ll!l
                                                                                                                                                                                                                                                                       !!h.

r:e iy

                                                                                                                                                                                                                                                                                    ?!         dh          :.    .   .lli
                                                                                                                                                                                                                                                                                                                     ! i'~ m    j!-     h?           E:
                                                                                                    " l!' i l! JUMli LINES !!"!i! 'l                                                                                                                                                                                       v!- e
  • l . .  : . .

40

                                                                          ! I i b; N                            l!

i' ! ' I '.!' I] L !! '"!

                                                                                                                                                                                                                                                           '< ~22 9 ;!jh!

lllk3i ne di ! i  ! lil- l' il ih C

                                                                  '                                 "                              II                '     ll     Il               l    ll'                  l       f        i               l    !!

i 26.21- :y;"l h J 5::

                                          .    .' u . . !         .

blli.,i.l'

                                                                                 .o.-

i: Pj i h. I 8 j ' I i il l l

                                                                                                                                                                                              'M
                                                                                                                                                                                         !. li.   ,

ll

                                                                                                                                                                                                                     ;. l i       ':'

i.

                                                                                                                                                                                                                                              .. i
                                                                                                                                                                                                                                                          .d il
p. .. .,
                                                                                                                                                                                                                                                                      ;;p t il' . l l:H.,i i:ljtui
                                                                                                                                                                                                                                                                                      ..       n         g e    .:!
                                                                                                                                                                                                                                                                                                                         ..c. i : .:    .
                                                                                                                                                                                                                                                                                                                                          . L f.'
                                                                                                                                                                                              .!- !.n;! f a le     5 0,.:.i. M !
! i l l ! l  ;

l

                                                                                                                                                                                                                                       .      i!li ;I i .ll :{ : h'; :lh j<!!;                                                                         .

i; ; i, i r., I - 20 m: :k. i I..."l' ;l' i. 1 In ll  ! i ll I : i j! l: i ll .

i. ! ni.
                                                                                                                                                                                                                                                                                               ~i ;n      o r' I i -h
                                                                                                                                                                                                                                                                                                                     ' p =:' W" tiv ly f g,lACCEPTA3Li
                                                                                                                                                                                                             ~-                        i
                                                                                                                                                                                                                                                        'd' Ih h:1                  .l                   .-

M. .::n :- l!h ll l l [: l CPERATICN 4i !lli W' 1 l l l f lrl {~ i i l 11 :

                                                                                                                                                                                                                                                                      ;j ij {

il l: h]] jFCR SPEC:FIECi

. [.[ .!

jg , R C PUMP . l[[ l l l l; j.- - .

                                                                                                                                                                                                                                                                                                ,j j (j{U        h        hj! O i
                                                                                                                                                                                                                                                                                                                             -i : .M a h                             -

l

                                                     !!        !                                                               COMSINATICN                                                                                            l                               .'                  l              i           .-pl'l ! N NH '

l

                                  . g;                         l                              <
                                                                                                                  ~

hhhh  ; $ i l l H NN l h

                                      ,-60 ,                                 *
                                                                                           -40 .                                                    20 '~                                                0 ~                      ,
                                                                                                                                                                                                                                                           +:0~                                      ,
                                                                                                                                                                                                                                                                                                           +44                                      +iio .
                                                                                                                                  ..                 AX1Al. PCWER IMS'ALANCE, %
                                                                                      , 'Mgure 2.2 2'Mowable value for. Rux-Asux-Mow '
            ' CN/IS-GESSE. IJNIT T. .                                                                                                                                  .
2. Anieric=ent No.'. .

3

                                  .                                                                                                                                                                                                                                                                                                                              e e
    ~

LIMITING SAFETY SYSTEM SETTINGS BASES

            .iC High Temoerature The RC High Temperature trip < 619'F prevents the reactor outlet temperature from exceeding the desTgn limits and acts as a backup trip for all power excursion transients.

Flux - a Flux-Flow The pcwer level trip setpoint produced by the reactor coolant system ficw is based on a flux-to-flow ratio which has been established to accommodate ficw decreasing transients from high pcwer where pro-tection is not provided by the High Flux / Number of Reactor Coolant Pumps On Trips. The power level trip setpoint produced by the pcwer-to-ficw ratio provides both high power level and low ficw protection in the event the reactor power level increases or the reactor coolant ficw rate decreases. The power level setpoint produced by the power-to-flow ratio provides overpcwer DNB protection for all modes of pump operaticn. For every flow rate there is a maximum permissible power level, and for every pcwer level there is a minimum permissible low ficw rate. Typical power level and icw flow rate combinations for the pump situations of Table 2.2-1 are as follows:

1. Trip would occur when four reactor coolant pumps are operating 1 j f power is 105.5% and reactor ficw rate is 100%, or flow '

rate 'is 94.6% and pcwer level is 100%.  ;

2. Trip would occur when three reactor coolant pumps are operating i if power is 78.3% and reactor flow rate is 74.7%, or ficw rate is 70.9% and power is 75%.
                                                                                        <(
3. Trip would occur when one reactor ccolant pump is operating in each loop (total of.two pumps operating) if the power is 50.6%

and reactor ficw rate is 49.0% or ficw rate is 46.3: and the power level is 49.0%. For safety calculations the maximum calibration and instrumentatien errors for the pcwer level were used.

   %M DAVIS-BESSE, UNIT 1                         B 2-5 m   m 4

D

o . . . 1 1 l li TAllt [ 3.2-1 e. I f. u IlNil HARGIN as g LlHITS

           .         44       .                                                                                                                                           .
          .         .                                                             four Reactor           Three Reactor                     One Neactor j          g Coolant Pimaps         Coolant Pimps                     Coolant Piagi q                         Parameter                                  operating             operating             operating _ in tach Ioop     ..

(

                    ~

l Reactor Coolant ilot Leg < 610 < 610 'III < 610 g Temperature.Tg*F . l HeactorCoolantPressure,psig.(2) 2062.7 > 20511.7 III > 2091.4

         !                  Heactor Coolant flow flate, gluII                        > 396,11110 l                                                                                                  > 297.340

_ > 195,760 l

         .        M.

s ea - L

   ~

IU

       .                                  Applicalite to tiie loop witti 2 Reactor Coolarit Pamips Operatteig.

(2) Limit not applicalile sluring ef tlier a IlifillMt. P(RifR 4ings leicrease lei excess of 51 of

                   '                      HAllin lillHHAL POWtH per minute or a IllLPJiAL PuutR step increase of greater tinasi 10%

j of HAILD lillkHAL PtEllit. O I3I

                ?,

lliese flows lucliale a flow rate unicertaliity of 2.5%

                                                                                .                                                                               l if

3/4.4 REACTCR COOLANT SYSTEM REACTOR CCCLANT LOOPS LIMITING CCNOITION FOR OPERATION 3.4.1 Both reactor coolant loops and both reactor c:clant pumps in each lecp shall be in operatien. APPLICABILITY: As noted below, but excluding MCCE 6.* ACTION: HOCES 1 and 2:

a. 'With one reactor c:olant pumo not in coeratien, STARTUP and
                             -    PCWER OPERATION may :e initiated and may proceec proviced THERMAL POWER is restricted :: less than 78.3t of RATED      q THERMAL POWER and within 4 hours the setacints for the following trips have been reduced tc the values s;ecified in Specification 2.2.1 for operation with three reac::r coolant pu=os operating:
1. High Flux
2. Flux-aFlux-Flow
b. With one reacter c clant pumo in each loop not in c:eratien, STARTUP and-POWER CPERATION may be initi; ed and may roceed provided THERMAL POWER is restricted to less than 30.6tof h(

RATED THERMAL POWER and within 4 hcurs the set:cints fer the follcwing trips have been reduced to the values specified in Specification.2.2.1 for c:eration with one reac:ce coolant pump cperating in each loop:

1. High Flux -
2. Flux-aFlux-Flcw
  • 3 D**

wa o a

                   'See Special Test Exception 3.10.3.
      ~

DAVIS-3 ESSE, UNIT 1 3/4 4-1 s I

                                   .}}