ML20063N619

Amends 61 & 44 to Licenses DPR-58 & DPR-74,respectively, Revising Tech Specs to Reflect Revised LOCA Analysis for Unit 1 & Implementation of Suppl 2 to PDC-II Power Distribution Control Procedures for Units 1 & 2

ML20063N619
Person / Time
Site:	Cook
Issue date:	09/15/1982
From:	Varga S Office of Nuclear Reactor Regulation
To:
Shared Package
ML17319B544	List: ML17319B543 ML17319B545 ML20063N619
References
NUDOCS 8210040417
Download: ML20063N619 (29)

Text

--

1 1

[p. navy'o, UNITED STATES g

, s. ( (,g NUCLEAR REGULATORY COMMISSION E

WASHINGTON, D. C. 20555 5's

.. [

s.,.v [f 1l' o

INDIANA AND MICHIGAN ELECTRIC COMPANY DOCKET NO. 50-315 DONALD C. COOK NUCLEAR PLANT UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE I

Amendment No. 61 License No. DPR-58 l

t i

1.

The Nuclear Regulatory Commission (the Commission) has found that:

A.

The applications for amendment by Indiana and Michigan Electric j

Company (the licensee) dated April 7,1982 and July 12, 1982, comply with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's l

rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in confomity with the applications, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and security of the public; and I

i E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements j

i have been satisfied, l

8210040417 820915 PDR ADOCK 05000315 P

PDR l

.=

\\\\

\\.\\

2-2.

Accordiogly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License i

No. DPR-58 is hereby amended to read as follows:

(2) Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No. 61, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Speci fications.

3.

This license amendment is effective as of the date of its issuance.

FC;b8IHENUCfA3REGULATORYCOMMI y.

b La h r a, ds j

5t ye ha ef Operating Reactora ranch #1 Division of Licensing Attachmenti Changes to the Technical Specifications Date of Issuance: September 15, 1982 l

,y men.

,,_m gggesy y seg ; ~w e -

, g g gwygg e e,

_p gg g p g,g

• M,

ATTACHMENT TO LICENSE AMENDMENT AMENDMENT NO. 61 TO FACILITY OPERATING LICENSE NO. DPR-58 DOCKET NO. 50-315 Revise Appendix A as follows:

Remove Pages Insert Pages 3/4 2-1 3/4 2-1 3/4 2-2 3/4 2-2 3/4 2-3 3/4 2-3 3/4 2-4 3/4 2-4 3/4 2-6 3/4 2-6 3/4 2-7 3/4 2-7 3/4 2-8 3/4 2-8 3/4 2-8a 3/4 2-8a 3/4 2-15 3/4 2-15 3/4 2-16 3/4 2-16 3/4 2-17 3/4 2-17 3/4 2-19 3/4 2-19 3/4 2-20 3/4 2-20 B3/4 2-2 B3/4 2-2 e

3.4.2 POWER OfSTR180TTON LfMfTS AXIAL FLUX DIFFERENCE (AFD)

LIMITING CONDITION FOR OPERATION 3.2.1 The indicated AXIAL FLUX DIFFERENCE (AFD) shall be maintained within the target band (:5% or 3% flux difference units) about a target flux l

difference.

APPLICABILITY MODE 1 above 50% RATED THERMAL POWER

• ACTION:

a.

With the indiccted AXIAL..F(.UX DIFFERENCE outside of the l

target band abm the target flux difference and with THERMAL POWER:

1.

Above 90% or 0.9 x APL** (whichever is less) of RATED THERMAL POWER, within 15 minutes:

a)

Either restore the indicated AFD to within the target band limits, or b)

Reduce THERMAL POWER to less than 90". or 0.9 x APL (wnichever is less) of RATED THERf'AL POWER.

2.

Between 50" and 90" or 0.9 x APL (whichever is less) of RATED THERMAL POWER:

a)

POWER OPERATION may continue prcvided:

1)

The indicated AFD has not been outside of the l

target band for more than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> penalty deviation cumulative during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and 2)

The indicated AFD is within tne limits shown en Figure 3.2-1.

Otherwise, reduce THERMAL POWER to less than 50". of RATED THEPPAL POWE: within 30 minutes and neduce the Power Range Neutron Flux-High Trip Setpoints to' < 55". of RATED liiERMAL PCWER within the nexi 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

b)

Surveillance testing of the Power Range Neutron Flu'x Channels may be performed pursuant.to Specification 4.3.1.1.1 provided the indicated AFD is maintained within the limits of Figure 3.2-1.

A total of 16 l

hours operation may be accumulated with the AFD l

outside of the target band during this testing i

without penalty deviaticn.

" See Special Test Exception 3.10.2

• • APL is the Allowable Power Level defined in Specification 3.2.6.

l lD.C. COOK-UNIT 1 3/4 2-1 Amencment No. 61 mummmmmmmmmmmmmmum

POWER DISTRIBUTION LIMITS LIMITING CONDITION FOR OPERATION (Continued) 1 c)

Surveillance testing of the APDMS may be performed pursuant to Specification 4.3.3.6.1 provided the indicated AFD is maintained within the limits of Figure 3.2-1.

A total of 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> of operation may be accumulated with the AFD outside of the target band during this testing without penalty deviation.

b.

THERMAL POWER shall not b.e., increased above 90% or 0.9 x APL (whichever is less) of RATED THEPf4AL POWER unless the indicated AFD is within the target band and ACTION 2.a) 1), above has been satisfied.

c.

THERMAL POWER shall not be increased above 50% of RATED THEPJiAL POWER unless the indicated AFD has not been outside of the target band for more than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> penalty deviation cumulative during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

I d.

During power reductions using control rods, the reporting requirements of Specification 6.9.1.9 shall not aoply provided the action items above are satisfied.

SURVEILLANCE REQUIREMENTS 4.2.1.1 The indicated AXIAL FLUX DIFFERENCE shall be determined to be within its limits during POWER OPERATION above 15% of RATED THEFJiAL PCWER by:

a.

Monitoring the indicated AFD for each CPERABLE excore channel:

At laast once per 7 days.v, hen the AFD Mcnitor Alarm is l

trtxABLE, and l

2.

At least once per hour for the first' 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> af ter restoring the AFD Monitor Alarm to CPERAELE status.

f b.

Monitoring and logging the indicated AXIAL FLUX DIFFERENCE for each CPERABLE excore channel at least once per hour for the first 24 ho :rs and at least once per 30 minutes thereaf ter, l'

when the AXIAL FLUX DIFFERENCE Monitor Alarm is inoperable.

l The logged values of the indicated AXIAL FLUX DIFFERENCE shall l

be assumed to exist during the interval preceding each logging.

3. C. CCCK - UNIT 1 3/4 2-2 Amendment 30. 61

~

POWER DISTRIBUTION LIMITS SURVEILLANCE REQUIREMENTS (Continued) 4.2.1.2 The indicated AFD shall be considered outside of its l

target band when at least 2 of 4 or 2 of 3 OPERABLE *.xcore channels are indicating the AFD to be outside the target band.

Penalty deviation outside of the target band shall be accumulated on a time basis of:

l a.

A penalty deviation of one minute for each one minuts of POWER OPERATION outside of the target band at THERMAL POWER levels equhl to or above 50% of RATED THERMAL POWER, and b.

A penalty deviation of one-half minute for each one minute of POWER OPERATION outside,of the target band at THERMAL POWER levels between 15% and 50T of RATED THERMAL POWER.

4.2.1.3 The target axial flux difference of each OPERABLE excore channel shall be determined in conjuction with the measurement of I4 (Z) as defined in Specification 4.2.2.2.c.

The provisions of Speci-Fg fication 4.0.4 are not applicable.

4.2.1.4 The axial flux difference target band about the target axial flux difference shall be determined in conjunction with the measurement of F'

(Z) as defined in Specification 4.2.2.2.c.

The allowable values of the target band are +54 or +3%.

Redefinition of the target band fr:m '3% to '5%

between determinations of the target axial flux difference is allowed when appropriate redefinitions of APL are made.

Redefinition of the target band

.from +5% to +3% is allowed only in conjunction with the determination of a new target axial flux difference.

The provisions of Specification 4.0.4 are not acplicable.

l

/

4 D. C. CC0K - UNIT 1 3/4 2-3 krendment ib. 61 I

s.

-s.

i....

'i _..

e t

i

[

I 8 '-

3 i

g t

s m

1 l

[-

ea m

I c 10 I

... f

?

.E Una'cceot'able :...... I. ;... h. *.t.l...! __ i....

Unacceptable _

_O.p e.r.a.t..i. o.n

..,_p.._1_0.,901 - ' i - -

-(+10. 9.0.)_.._0per.a.t. ion.

1

,a l-i -

...t.

._._ s.....

i a

E

(-8,90) i G.E,90.)_ _

80 l

x

v... _.

t l

I J

a e_

i L. _i arget

+5". Ta.rge-

.. Sand -- -

'---'----i--'-

-i Acceotable Ocera-ion-

ye u

u 2

00 i.

'I,'.--'i-.-i

,~

o

• a-t-c:.:0)

--(-23,50) '

'(+25,s0)-

c-(+23,50)--

g u

40

.u a

3 t

i.

s

=_

=

20

=

si

_.. i.._.._._..

i

.=

=

._ i i..

w=

0 a

-30

-20

-10 0

10 20 Se Deviation trc:n s arcet _iux sf r..ierence n

r

{

1 Fi.jurc 3.2-1 Allowable Deviation from Target Flux Difference i

1 t

I 1

1 0* C* CC0K - Unit 1 3/4 c--

m, encment ::c. 61 6

L

POWER OISTRIBUTION LIMKTS SURVEILLANCE REQUIREMENTS 4.2.2.1 The provisions of Specification 4.0.4 are not appitcable.

4.2.2.2 F (Z,1) shall be determined to be within i'ts limit by:

q a.

Using the movable incore detectors to obtain a power distribution mao.at any THERMAL POWER greater than 5% of RATED THERMAL POWER.

b.

Increasing the measured F (Z,1) component of the power distribu-9 tion map by 3% to account for manufacturing tolerances and further increasing the value by 5% to acegynt for measurement uncertainties.

This product defined is F'CE).

l-q c.

Satisfying the following relationship at the time of the target flux determination.

Fh(Z[ ~

F (Z) 1 pxgp(g)

[K(Z)] / [V(Z)]

for P >.5 2Fh(Z)

F (Z) 1

[K(ZD / [V(ZD for P 15 Ep(I) where:

F'(Z) = F (Z,1) at i for which g

F(Z,1) 0 is a maximum 7(g F (Z) = F (E )

at i for which g

F(Z,1) 0 is a maximum 7( g F(Z)andFh(Z)arefunctionsofcoreheight,Z,andcorrespond l

at each Z to the rod I for which F (Z,1) is a maximum at that Z.

0 T(Eg V(Z) is the function defined in Figure 3.2-3 which corresponds te the target band, K(Z) is defined in Figure 3.2-2, T(E.) is defined in Figures 3.2-3a and 3*.2-36, P is the fraction Of RATED THERMAL p0WER.

Ep(Z) is an uncertainty factor to account forthereductionintheFh(EI)curvedue'toat accumulation of exposure prior to the next flux map.

/

Ep(Z) = 1.0 0 1 Eg1 17.62 Ep(Z) = 1.0 +

0040 x F (Z),

17.521 Eg 1 34.5 Ep(4) = 1.0 +

.0093 x (Z) 34.5 1 E. 1 2.2 4

d.

Measuring F (Z,1) in conjuncticn with a target flux difference n

I and target cand determination, according to the folicwing schedule:

l

0. C. CC0K - UN.IT 1 3/4 2-6 Amendment No. 61

POWER DISTRIBUTION LIMITS SURVEII LANCE RE0VIREMENTS 1.

Upon achieving equilibrium conditions.after exceeding by 10% or more of RATED THERMAL POWER, the THERMAL POWER at which F (Z) was last detennined*, or n

2.

'At least once per ~ 1 effective full power days, which-ever occurs first.

• During power escalation at the beginning of each cycle, the design target may be used until a power level for extended operation has been achieved.

e.

With successive measurements indicating an increase in peak pin power FAH, with exposure, either of the following additional actions shall b'etaken.

((Z) shall be increased by 2". over that specified in 1.

4.2.2.2.c or 2.

(Z) shall be mea::ured and a target axial flux difference reestablished at least once per 7 effective full power days until 2 successive maps indicate that the peak pin pcwer, F3g, is not increasing.

f.

With the relationship specified in 4.2.2.2.c not being satisfied either of the follcwing actions snall be taken:

1.

Place the core in an equilibrium condition where the limit in 4.2.2.2.c is satisfied and remeasure the tarcet axial flux difference.

2.

Comply with the requirements of Specification 3.2.2 for F (Z,1) exceeding its limit by the percent 0

calculated with the following expression with V(Z) corresponding to the target band.

i F (Z) x V(Z)xEp(Z) max. over Z of

-1 x 100 ? >.5 Fh(E) 1 x [K(Z)]

p g.

The limit: specified in 4.2.2.2.c and 4.2.2.2.f above are not '

applicable in the following core plane regions:

1.

Lower core region 0 to '10% inclusive.

2.

Upper core region 90", to 100" inclusive.

4.2.2.3 When F (Z,1) is measured for reasons other than meeting the g

requirements of Specification a.2.2.2, an overall measured F (Z,1) shall be cbtained frem a pcwer distribution mas and g

increased by 3". to account for manufacturing tolerances and further increased by 5'.' to account for m asurement uncertainty.

D. C. COOK - UNIT 1 3/4 2-7 Amendment No. 61 i

4 5

J i

, ~.

A w

_..=4.--

~-

._-- = :r_=1 ::: _r-u

....l. :.. :... %. ::

....t.... :.. l.....

1.. _

1-c.

'.-~: :.

s: -

lib: _-i -a:==i 5f#rb it=; Wiii=-lMa: :=H.=1 ?".

1

. =..i.cE_ ;__v-m _.. "- i"

__-E._~.t.....:. i._;a..i...::_:..:.;;.::!..+; ii. _-2.___.d.. _.. I.. 4... !

. _...... _.. g N._E.7 EE2 E.Il!E 5.fi'.' ' -

IW. E' Tit

. _O r.~ :t.- :!:--t

i

-t=,_.

m a'

... g.. -p......

_..h..

m..

ay

~L. M. t =<t ---

M.;I =l; ;. r Pa l;a.;;;:..:=,r.;

.s.:: J.;

C

=-o-

~

a

~ ~ E.7 i G W i - '" E dEil5%=_m.LK FEW=$W:i

wl,.4 4

i

)

= t,_-

._=:----_- =.: J.. =.=:: =..4.;=.=-

. :.....:I

r. w.:.

=--

..e-a w

-- l=.m=_;. _- __. _..;=_ =:g=:.:_.4. _:. o.. v.t--::

,r1. =,:.:_. I..........

.==.

.n =....-

= - - -

c: a.

,i _ l=..

m....

O_

=== :-n

_ r==, =.

..:. _;,.- :. -

-- =

v.r=,:

,---_---gp__

.-t--,---_i

,_ ; g,,. ;.. _ y,. y

'*,"[.-..--

i "" t*""

!.. '.."!. l. "*

• r !.. ~.* *

..;.=4

• 2i T f-

• 1

• g

--- i --- ' er t.;;c i.;.g:Z4 ;

4.'

i

..._g.

.l-l g

E

- r :-:m., - =.:-

e w*

_ y_.,

y ; =_==.::=_ m=(=; p

.qi._.. 3_._:y:.

1 a.=

g,

-~

.Q.. m.j.--

?. :.

.% : = :

y--- --- ;,7.;.:..;, =;;....

?. := a g

=- @

'~~**"'::_.

< --- ---li J..=.& ' r.-

..... ".g= ;... l *, =..... }... 4 t

.e=

.N

-=::.

eu-:

.m

_. _ %.:N-] __r;=:.: :-t =..- Jl;=~... 2 : ; _.:.~.. t ----r :: H..::

r..

3 L

.- w

. a u.

• 2. :.. : - -- -

kgy c=

8

..r_,

= n

-..:- - - c.=. d=.

n- = : -....

e o

l.

. i ". _..~ ;;..

i*.**"f=..

-"":'""*"?

8Q g

4...

y

._... _m--a s c.= P --. : -- -.r m r i-- :2.-

- n.t,

,N,,,,,o

._t=..-a===:.-:---,,,.,_,,.,;,.._,;,

=._

.r t =.=. --

- - ~

g

__.... _... i -- h=- e: n :; _, _..,.:.:u-

.. -. s r -

=-

~. -..-----:.

w--~

. _. = _ =.... -...... _q.

_.; =:.

N

..: ;;u. t.:

m

.=__=__=.:_=.:.

_ - :a;..

j=.=:;.u;i.;..;:n._ q -- - :r_.: :._...:: =.n.:---. ;..

e.s.,

. -- -~

s

-.. =-._:.re

..: f:: = =:=_&.: _.. :. - :_;. :: w r

. _. _. _ _ =.

.-:.a..----...:-

c

-- - _ :-. r

._ : =-

=x, =. __ m: :n :: ---- * ::- j _ :.--- - ----. ::: -- +:-. _

y

. -... _ = - -

...... :. :.:.. :.- :-. n~ n m

~* : E-f_I'55. i=l* 5:cme:!.=.iN!=%I'5[-t=_-E'@h29 C

. __....--4

. - ;a,g-.__ ; ;.2_,.; ;;;..

. g,

=;; - :- -..--:.-.

._T-~

t-

_= :.;:;. c-

- _. ? - :r-}.. r:-~. I... ;; I

r..

. a.

.....i t:-

r. M -.

.1..:.

• y*

,l..::. : J,:2.. : :. s...._...,

.t

,t o

o.

a.

e.

w

~

~

o o

o o

o e

4 (Z) U.4 pan t s cN - (Z)'4 i

F

0. C. Cook - Unit 1 3/4 2-8 Amendment No. 61 1

4 i

r.

i.

rI i

.r

. 3 -

)

1

- t s

l.

l

..s.

3.10 t

=

l

. :.. a.

1.,,w a

i t

-(

og

.._11. 2s,, 1.1o /

.:...... i _...

1..A L

1

+5% Target Band (11.25,1.12 12

' - - ~ ~ ' '-"'

~ ~ ~ '

~

(o. 2.:, 1.11) u 1*10

......_.'......p+3% Target Band.

N y

,2 C.. 7 e", 1. 0 m )

o 6.

1.c.w0 2

1.w-

1. 0.7

.t

.. C u.

0 3

+

o 8

.0 14 Axial Heignt (feet) figun 3.2 3 V(Z) As A Functicn of Core Heigh:

1 D. C. CC0K - Unit 1 3/$ 2-S(a)

Amencment No 61 f

1 POWER DISTRIBUTICN LIMITS

/

AXIAL POWER DISTRIBUTION LIMITING CONDITION FOR OPERATION 3.2.6 The axial power distribution chall be limited by the followf ng 1

relationship:

OC MW

[F (Z)]3 = ~(f )(P )(1.03)(1 + ej)(1.07) F,.-

j g

Where:

F (Z) is the normalized axial power distribution fr:m thimble a.

3 j at core elevation I.

b.

P is the fraction of RATED THERMAL POWER.

g c.

K(Z) is the function obtained frem Figure 3.2-2 for a given core height location.

d.

T, for thimble j, is detemined frcm at least n=6 in-core t"'

flux maps covering the full configuration of pemissible rod patterns at 10C% or AFL (whichever is less) of RATED THERMAL PCWER in accordance with:

N j"

ij i=1 Where:

gN/T(El) 13

[F lZ)j jj Max R

and its associated a may be calculated en a full c::re er a 1Niting fuel baten basid as defined en page 33/4 3-3 of basis,

[q'*gs is the limiting total peaking factor in flux =ao 1.

The e.

limiting total peaking factor is that factor with least. margin

'to the Fh(EA) curve defined in Figure 3.2-3a for Exxon Nuclear l

Company fuel and in Figure 3.2-3b f:r Westinghcuse fuel.

O. C. COOK - UNIT 1 3/4 2-15 k:end=ent No. 61 e-

?

a s

POWER DISTRIBUTION LIMITS LIf1ITING CONDITION FOR OPERATION (Continued) b T(EI) is the ratio of tFe exposure dependent F (E) 'to 2.04 g

and is defined in Figure 3.2-3a for fuel supplied by Exxon Nuclear Ccmpany and in Figure 3.2-3b for fuel supplied by Westinghouse Electric Corporation.

[F )(Z)]g,, is the maximum value of the ncrmalized axial distri-f.

9 bution at elevation Z from thimble j in map i which had a limit-ing total measured peaking factor withcut uncertainties cr densification allowance of pMeas.

Qit is the standard deviation associated with thimble j, expressed a4at a fraction or percentage of f and is derived frcm n flux maps frcm the relaticnship beled,er 0.02, (25) whichever is greater.

n ej * [ n.; i j @j - Rij)

I.3 The factor 1.07 is comprised of 1.02 and 1.05 to account for the axial power distribution instrumentation accuracy and the using the movable measurement uncertainty assceiated with Fg detectcr system respectively.

The factor 1.03 is the engineering uncertainty fact:r.

r0 duction in the F'y facter for Exxon fuel to acc unt for tne F is an uncertaint g.

n(E) curve due to an accumulation of ex-fact:r The folicwing Fp posure prior to the next flux map.

shall apply:

F = 1.0 0_<Ei_< 17.12 p

F = 1.0 + [.C015 X W3 17.62 <E 4E34.5 4

p F = 1.0 + [0.0033 x W]

34. 5< El< 42.2 P

where W is the number of effective

~

full power wecks (rounded us to the.

next highest integer) since the last full core fiux map.

D. C. COOK - UNIT 1 3/4 2-16 Anencment No. 61'

.i

l

POWER DISTRIBUTION LIMITS LIMITING CONDITION FOR OPERATION (Continued)

I APPLICABILITY:

Mode 1 above the percent of RATED THERMAL POWER indicated by the relationship.#

Fh(E)K(Z) g x 100" APL = min over Z of F (Z,1) x V(Z) x Ep (Z) g where F (2,1) is the measured F (Z,1), including a 3%. manufacturing g

q tolerance uncertainty and a 5" measurenent uncertainty, at the time of target flux determination frem a power distribution map using the movable incore detectors.

V(Z) is the function defined in Figure 3.2-3 which corresponds to the target band.

The above limit is not applicable in the following core plane region.

1)

Lower core ragion 0% to 10% inclusive.

2)

Upper core region 90% to 100% inclusive.

ACTION:

With a F)(Z) factor exceeding

[F (Z)]3 by <,4 percent, reduce a.

j THERMAL PCWER 1 percent for every percent by which the F)(Z) facter exceeds its limit within 15 minutes and within the next 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> either reduce the F (Z) factor to within its j

limit or reduce THERMAL POWER to APL or less of RATED THERMAL POWER.

With a F (Z) factor exceeding [F (Z)]3 by > 4 percent, b.

3 j

l reduce THERMAL POWER to APL or less of RATED THERMAL POWER l

within 15 minutes.

Ine APCMS may ce out of service: 1) when incore maps are being taken as part of the Augumented Startup Test Program or 2) when surveillance for determining power distribution maps is being performed.

D. C. CC0K

' UNIT 1 3/4 2-17 Amencment No. 61

4 4

.s

2. 2 ~. _..

.. _ _ _ _.. _ _.. _ _ _ _ _. ~

,,...-._..--.=_;------.

u.

Pl'Z.,62,TT0. 4..-):. _.

=(0J2.04) :..

2~0

~~

~

d 55%Ef5_~5~--. --?CL *

- !f.5 3 5 M W,iSUC94)!". "!

~

===.:.=....=._=....__..... _ - - -

a cr 1.9 w

. r..,. ; r.,

,.-- t 42 :2,1.86)

.._, :..- :=_- -.:- - -

- ~ - - - >

zu: F3_. :.{.Ei-)_-i=_-2;_0# --

- ' O d.qlit. 5 2 ---

E., 5Et-t--= > 74-an93?32-+G2iEri-3+d x

C 1.7

.._._F

( gg y m-.24MlM E:-

3-WE14-2 4

. Q. __.._

=. _.. -. _.. _ _

l.6 y-. - -

.: _. :..=: :

4:

1.1

-.----.--.:._=.-

l I(0_,1 0)]7_..

~

~

19 / - &z;t.-u) 1.0

.Q4.J:5e956!

.e

.... _. ::_ n. = = = -

_,3 e o,.912)

Si

.9

- ---- (E g-. 1 n

-- T m,.g m -m

=

n

w. - - --

l S (El):=_G04o-T0026_1_4E N #62.Et.c34h-

_.. _.O(E-1) =- 1.154=;005:7-3EUC5-MEF42:2--

r=

.8

.7

.--:_._..--_._,...-...._..:==u.

0 10 20 30 40 44 Peak Pellet Expbsure in MWD /KG Figure 3.2.3a Exposure Dependent F Limit, F (Eg), and ;iormalized Limit' q

T(Eg) as a Function of Peak Pellet Burnup for Exxon Muclear Company Fuel D. C. Cock - Unit 1 3/4 2-19 kaendment No. 61 f

n.,

I

- 6 I

a

.. t i

2.2

._.......-----=_T_

._ _ n _. y 3

s...

g{

3..,_,__

4

-..-.....=-_...........

3.n

^

G v e

,. s w

w

_ -...... = _ =._.

8C 9 La.

A.a i

J t

_~

• ~~~~'-

&_~~x;,:[,p

-Q<[}

Q 1.8 44 s

y i.

.6

...T T -- ~-

4

(

.:.==---

1,y

_. ~.. _.

I 1

1~

1.0

" =::. - ~~. ~.~ ~.;:

M

~.. ' '.

.. ~. ~ ~.

..=.

.a W

p.=

\\

.9 JTF3._..=:dT931 0<!a

... =

_. _ - _ - = = -.

- - - - - - ~

8

.... s...n.

. =.

_=..

-.=._.----

=---

.7

- r-

=.- i =--.:.....

,2 r

0

' 10 20 30 40 44 Peak Pellet Exposure in MWD /KG Figure 3-2-3b L

F Limit, Fq (Eg), and ;;ormalized Limit T(E ) cs a q

g Function of Peak Pellet Burnup for Westinghouse Fuel

0. C. Cock - Unit 1 3/4 2-20

cendment tio. 61 O

I.

rev. '

y

-w-*mTr---

w..--w--a-*

pe

= - - ' - - - - " - - - ' - -

- =

~

POWER DISTRKBUTION LfMITS BASES Although it is intended that the plant will be operated with the AXIAL FLUX DIFFERENCE within the target band about the target flux l

difference, during rapid plant THERMAL POWER reductions, control rod motion will cause the AFD to deviate outside of the target band at re-duced THERMAL POWER levels. This deviation.will not affect the xenon redistribution sufficiently to change the envelope of peaking factors which may be reached on a subsequent return to RATED THERMAL POWER (with the AFD within the target band) provided the time duration of the devi-ation is limited.

Accordingly, a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> penalty deviation limit cumu-lative during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is provided for operation outside of the target band but within the limits of Figure 3.2-1 while at THERMAL POWER levels above 50% of RATED THERMAL POWER.

For THERMAL POWER levels below 50% of RATED THERMAL POWER, deviations the AFD outside of the target band are less significant. The penalty of 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> actual time reflects this reduced signifigance.

Provisions for monitoring the AFD on an automatic basis are derived from the plant process computer through the AFD Monitor Alarm. The ccmputer determines the one minute average of each of the OPERABLE excore detector outputs and provides an alann message if the AFD for at least 2 of 4 or 2 of 3 OPERABLE excore channels are outside the target band and the THERMAL POWER is greater than 90% or 0.9 x APL of RATED i

THERMAL POWER (whichever is less).

During operation at THERMAL POWER levels between 15% and 90% or 0.9 x APL of RATED THERMAL PCWER (which-ever is less), the computer outputs an alann message when the penalty deviation accumulates beyond the limits of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, respectively.

The upper bound limit (90% or 0.9 x APL of RATED THERMAL POWER (which-ever is less)) on AXIAL FLUX DIFFERENCE assures that the Fn(Z,1) envelope of 2.04 times K(Z) x T(E ) is not exceeded during either ndrmal operation 7

or in the event of xenon redistribution following power changes. The lower bound limit (50% of RATED THERMAL POWER) is based on the fact that at THERMAL POWER levels below 50% of RATED THERMAL POWER, the average linear heat generation rate is half of its nominal operating value and belcw that value, perturba. ions in localized flux distributtons cannot affect the results of ECCS or DNBR analfses in a manner which would adversely affect the health and safety of the public.

Figure B 3/4 2-1 shows a typical monthly target band near the

' beginning of core life.

~,

The bases and methodology for establishing these limits is presented in topical report XN-NF-77-57.

" Exxon Nuclear Power Distribution Control for PWR's - Phase II" and Supplements 1 and 2 to that report.

l D. C. CC0K - UNIT 1 B 3/4 2-2 Amencment No. 61

.. - +.

w.e w.....

-. ~.

UNITED STATES

!I-NUCLEAR REGULATORY COMMISSION

)g(/,.E WASHINGTON. D. C. 20S$5 Y.vM.

F INDIANA AND MICHIGAN ELECTRIC COMPANY i

DOCKET NO. 50-316 DONALD C. COOK NUCLEAR PLANT UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 44 License No. DPR-74 1.

The Nuclear Regulatory Commission (the Commission) has found that:

A.

The applications for amendment by Indiana and Michigan Electric Company (the licensee) dated April 7,1982 ar.d July 12, 1982, comply with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the applications, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be. conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and security of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied,

, 2.

Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. DPR-74 is hereby amended to read as follows:

(2) Technical Specifications T, e Technical Specifications contained in Appendices h

A and B, as revised through Amendment No. 44, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.

3.

This licenqe amendment is effective as of the date of its issuance.

F R THE NUCL EGULATORY COMMISSION (j'ep?wt e ven n.

arga, Ch ef

/ Operating ReactorsA anch #1

1. Division of Licent g

Attachment:

Changes to the Technical Specifications Date of Issuance: September 15, 1982 r

l l

l p.'

ATTACHMENT TO LICENSE AMENDMENT AMENDMENT NO. 44 TO FACILITY OPERATING LICENSE NO. DPR-74 DOCKET NO. 50-316 Revise Appendix A as follows:

R5 move Pages Insert Pages 3/4 2-1 3/4 2-1 3/4 2-2 3/4 2-2 3/4 2-3 3/4 2-3 3/4 2-4 3/4 2-4 3/4 2-6 3/4 2-6 3/4 2-7 3/4 2-7 1

3/4 2-8a 3/4 2-8a 3/4 2-18 3/4 2-18 B3/4 2-2 B3/4 2-2 t

I i

1 l

i i

l I

I

i.-

15'7iti--J.#R"Y u "al.% g' p 3/4.2 POWER DISTRIBUTION LIMITS l

AXIAL FLUX DIFFERENCE (AFD)

LIMITING CONDITION FOR OPERATION 3.2.1 The indicated AXIAL FLUX OIFFERENCE (AFD) shall be maintained within the target band (25% or 3% flux difference units) about a target flux difference. [

l i

APPLICABILITY: 9.0DE 1 Wovi 505 RAfE'~ THERMAL POWER *

~

D ACTION:

a.

With the indicated AXIAL FLUX DIFFERENCE outside of the l

target band about the target flux difference and with THERMAL POWER:

1.

Above 90% or 0.9 x APL** (whichever is less) of RATED THERMAL POWER, within 15 minutes:

a)

Either restore the indicated AFD to within the target band limits, or b)

Reduce THEPl4AL POWER to less than 90% or 0.9 x APL (whichever is less) of RATED THERMAL POWER.

2.

Between 50% and 90% or 0.9 x AFL (whichever is less) of RATED THERMAL PCWER:

i a)

POWER OPERATION may continue provided:

1 1)

The indicated AFD has not been outside of the target band for more tnan I hour penalty l

deviation cumulative during the previous 24 l

hours, and 2)

The indicated AFD is within the limits snown on Figure 3.2-1.

Otherwise, reduce THERMAL PCWER l

to less than 50% of RATED THERMAL POWER within 30 micutes anc recuge tne Pcwer Range Neutron Flux-l Hign Trip 5et::oints to < 55% of RATED THERMAL POWER within the next a nours.

b)

Surveillance testing of the Pcwer Range Neutron Flux l

Channels may be performed pursuant to Specification 4.3.1.1.1 provided the indicated AFD is maintainec

,i 1

within the limit of Figure 3.2-1.

A total of le hours oceration may be accumulated with the AFD cut-side of tne target band during this testing witnout penal ty deviaticn.

See Speciai Test Exception 3.10.2 APL is the Alicwable Power Level defined in Specification 3.2.5

,D.C. CC0K - Unit 2 3/a 2-1 Amencment No. 44

POWER DISTRIBUTION LIMITS ACTION:

(Continued) c)

Surveillance testing of tne APOMS may be performed pursuant to Specification 4.3.3.7.1 provided the indicated AFD is maintained within the limits of Figure 3.2-1.

A total of 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> of operation may be accumulated with the AFD outside of the target band during this testing without penalty deviation.

b.

THERMAL POWER shall not be increased above 90% or 0.9 x APL (whichever is less) of RATED THERMAL POWER unless the indicated AFD is within the target band and ACTION 2.a) 1), dbove I

has been satisfied.

THERMAL PCWER shall not be increased above 50% of RATED THERMAL c.

POWER unless the indicated AFD has not been outside of the l

target band for more than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> penalty deviation cumulative during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

1 d.

Curing pcwer reductions using control rods, the reporting requirements of Scecification 6.9.1.9 shall not apply provided the action items I

above are satisfied.

l..

U' _EURVEILLANCE RE00:PEME.'.TE li ll4.2.1.1 The indicatad AXIAL FLUX DIFFERENCE shall be determined to be

!!within its limits during PCWER CPERATION above lE% of RATED THERMAL PCWER

,oy:

1 3l a.

Monitoring the indicated AFD for eacn CPERA5LE exccre channel:

ii i,

ll 1.

At least crea per 7 days when the AFD Monitor Alara is CPERASLE, ano At ', east once per hour fqr the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> af ter ii lj restoring the AFD Monitor Alarm to CPERA3LE status.

,,l b.

Mcnitoring and logging the indicated AXIAL FLUX O!FFERENCE f:r eacn OPERA 5LE excore channel at least once per hour for the-I gl first 2a hours and at least once er 30 minutes tnereaf ter.

wnen the AXIAL PLUX OIFFERENCE Fonitor Alarm is inocerable.

The logged values of the indicated AXIAL FLUX OIFFERENCE shall be assumec to exist during the interval prececing each loggin;.

i,

'ii I' ! 3. C. COCK - UNIT 2 t

3/4 2-2 Amencment Nc. 44 4

POWER DISTRIBUTION LIMITS SURVEILLANCE RECUIREMENTS (continued) 4.2.1.2 The' indicated AFD shall be considered outside of its target l

band when at least 2 of 4 or 2 of 3 OPERABLE excore channels are indicating the AFD to be outside the target band.

Penalty deviation outside of the targa.t band shall be accumulated on a time basis of:

l a.

A penalty deviation of one minute for each one minute of POWER OPERATION outside of the target band at THERMAL POWER levels equal to or above 50% of RATED THERMAL POWER, and b.

A penalty deviation of oEe' half minute for each one minute of POWER OPERATION outside of the target band at THERMAL POWER levels between 15% and 50% of RATED THERMAL POWER.

4.2.1.3 The target axial flux difference of each OPERABLE excore channel shall be determined in conjunction with the measurement of F' (z) as defined in Specification 4.2.2.2.c.

The provisions of Specification 4.0.4 are l not applicable.

4.2.1.a The axial flux difference target band about the target axial i flux difference snall be cetermined in conjunction with the measurement of I

.1 F'g(:) as defined in Specification 4.2.2.2.c.

The allowable values of the tarcet band are '5% or '3%.

Redefinition of the tarcet band frem '3% to +55 beraeen ceterminations of the target axial flux difference is allowed when a:crocriate redefinitions of APL are made.

Recefinition of the target banc frca +55 to +3's is allowed only in conjunction with the detemination of a new target axial flux difference. The provisions of Specification 4.0.4 are not applicable.

t i

l I

il I

O I

i l

C. C. CC0K - Unit 2 3/4 2-3 A encment t;o. 44

mmyis" e

+

. l..

2 C

c.

.a..

4......

....'...._...__g._.

1 I.

r n_.

u

.e0

,s o

.=

Unacceptable

.q.

i.

Unacceptable.

[

Operation.

(-10,90)

-(+10.90).. Operaticn a

(o

--. -, c.0 )_._ -( +1,9 0 ':.

~

x cu i i

I.>...

a c.<

_-- c 90..

.,..iarget

==-a

."U A 'p.- *-- l e 0="=".' i.' n 2

v a.

m m

y

[,9;....v) f,9,

..g s -

,u,

.. -- /. 7 ':.. {. }.

t..,.9.S.. ;p )

s

--o-( -

..sf f_

i-j v^

.. - - =

7.

~

5 23 p....

J 1 g

i g..

l eg u

o u

.a am w

-s

- r..,

p

,o a p;

u J

iv s

L,evia:1 cn ira,::: t arg e

.-,s u:(....-- erence

...u t.;

2.

,. l., i ci..s.u.i.;.,cv12.:cn,reu,ar.jc*;

lu.<

.... : c:

c i

U. C. C~CK - Uni. 2

^/* 2 4

en t

e n - *;o. 44 1

1 J

POWER DISTRIBUTION LIMITS SURVEILLANCE REQUIREMENTS 4.2.2.1 The provisions of Specification 4.0.4 are not applicable.

4.2.2.2 F (Z) shall be detennined to be within its limit by:

9 a.

Using the movable incere detectors to cbtain a power distribution map at any THERMAL POWER greater than 5% of RATED THERMAL POWE.R.

b.

Increasing the measured F (Z) compenent of the power distributien n

map by 3% to account for P..anufacturing tolerances and further increasino the value by M.to account for measurement uncertainties.

This product defined is F'(Z).

l g

c.

Satisfying the following relationship at the time of the target flux determination.

1C F(Z) 1 {9

[K(Z)]

/ ' [V(Z)]

for P >.S q

F'M(Z) 1 3.98 [K(Z)]

/

[V(Z)1 for P <.5 q

wnere I

.i FW-(Z) is the measured total peaking as a function of core heignt.

V(Z) is the function defined in Figure 3.2-3 which correscencs to the target band, K(Z) is cefinec in Figure 3.2-2, P is the fractica of RATED THEFPAL PCWER.

d.

Measuring F (Z) in conjunction with the target flux difference g

and target band detenninatien, according to the follcwing scnedule:

l Upon achieving equilibrium,:0nditions af er exceecing by I'

10*.' or more of RATED THERMAL F0WER, tne THERMAL PCWER at which F (Z) was last determinec', or g

2.

A leas: cnce per 31 effective full pcwer days, whichever occurs first.

l "Ouring pcwer escalation at the beginning of each cycle, tne design target may be used until a pcwer level for extended oceration nas been achieved.

l3. C. CCCK - Uni: 2 3/4 2-c encrer.c.'4 44

POWER DISTRIBUTION LIMITS SURVEILLANCE REQUIREMENTS With' successive measurements indicating an increase in peak e.

pin pcwer, Ft.H, with exposure, either of the following additional actions shall be taken.

1.

F' (Z) shall be increased by 2% over that specified in g

4.2.2.2.c, or 2.

F'(Z) shall be measured and a target axial flux difference g

reestablished at least' once per 7 effective full power days until 2 successive maps indicate that the peak pin power, Fy,, is not increasing.

f.

With the relationship specified in 4.2.2.2.c not being satisfied either of the following actions shall be taken.

1.

Place the core in an equilibrium ccndition where the limit ir. 4.2.2.2.c is satisfied and remeasure the tarcet i

~

[

axial flux cifference.

l 2.

Ccmoly with the recuirements of Scecification 3.2.2 fcr F (Z) exceeding its limit by the percen calculatec wi:n g

the following excression with V(Z) corresconding to the target band:

i l

F'9(Z) x V(Z) -

i 0

l max. over Z of

-1 x 100 P >.5 1 co jx[K(Z)]-

l l

g.

The limits scecified in 4.2.2.2.c and 4.2.2.25 above are no:

applicable in the follcwing core plane regions:

I i 1.

Lcwer core region 0 to 10",' inclusive.

i 2.

Ucper core regien 90". to 1C05 inclusive.

l.2.2.3 When F (Z) is measured for reasons other than 1esting tne g

i requirements of Specification 4.2.2.2, an overall measured l

F (Z) snali be obtained from a pcwer distribution mac and

j g

l increased by 3". to account for manufacturing tolerances and

,j further increased by 5% to account for measuremen uncertainty.

I 1

D. C. COOK - Unit 2 3/4 2-7 A; endment.':c. 44

6

e. e.a w e.

1.7; w

L

.(11..c,1.la.)

i 7,14

\\

.b

+5'.' Ta r Band

1. 2

_--.., -..g e t

..11.25,1.12 1

9.,.

1. w, t.:,,2,nrcet Sand i i

m

..i N

T

( c...? C. 1.1e '1 1...O:".

= ~ ~ ~ ~ ~ ~ ~ -

i i

3.I O

u.

...~

-. = -

1. V.9

..tws 9

4,,

m.

. 3 4.,. '

4.-

r.

2 g

g.C.

1 MXeC1 s+=

.t*"It.'

g g l. /

n : u ti(*. ; dt; i.;. t.O rt '

r.t

• I t'ri.

-1 e

s.

y f

D. C. CC0K. Unio 2 M

2-W kendmen; 'b 44 I

POWER OfSTRT8UTION LIMITS LIMITING CONDITIONS FOR OPERATION (Continued)

I c) is the standard deviation associated with thimble j, expressed as a fraction or percentage of E, and is derived frcm n flux maps 3

fred the relationship beluw, or 0.02, (2".) whichever is greater.

nb 1/2

[l i=1 (E - Rij)2 3

,b, n-1 f

Xj The factor 1.07 is comprised of 1.02 and 1.05 to account for the axial power distribution.iristrumentation accuracy and the measure-ment uncertainty associated with F using the movable detector system respectively.

g The factor 1.03 is the engineering uncertainty factor.

APPLICABILITY: Mode 1 above the percent of RATED THERMAL POWER indicated by tne relationsnip. #

F p I)~x h )

1 C9 C ~

APL = min over I of x 100".

where F (!) is the measured F (I), including a 3*, manufacturing tolerance g

g uncertainty and a 5, measurement uncertainty, at the time of target flux determination from a power distributien map using the trovable incore detec: Ors.

V(Z) is the function defined in Figure 3.2-3 whien corresponds to One target band.

The above limit is not applicable in the folicwing core piane regions.

1)

Lower ccre region G',' to 105 inclusive.

2)

Upper core region 905 to 100", inclusive.

ACTICN:

I With a F (2) fac:or exceeding [h(Z)] g by <_ a percenc, recuce 1.

l j

J THERMAL PCWER ne percent for every percent by whicn the F,(Z)

I' a

j factor exceeds its ifmit within 15 minutes and within the next two hours either reduce the F (Z) factor to within its limit 3

or reduce THERMAL 70WER to AFL or less of RATED THERMAL POWER.

With a F (Z) factor exceeding [F (I)]g by > a percent, recuce b.

3 j

[

THERFAL POWER to AFL or less of RATED THEFRAL PCWER wi:nin 15

}

minutes.

?

The AFCMS may be cut of ! rvice when surveillance fcr determining power distribution maps is being performec.

O. C. CCCK - Unit 2 2/4 2-18 Acenc: ent 't. 44

I POWER DISTRIBUTION LIMITS BASES Although it is intended that the plant will be operated with the AXIAL FLUX DIFFERENCE within the target band about the target flux l

difference, during rapid plant THERMAL POWER reductions, control rod motion will cause the AFD to deviate outside of the target band at re-duced THERMAL POWER levels. This deviation will not affect the xenon redistribution sufficiently to change the envelope of peaking factors which may be reached on a subsequent return to RATED THEn%L POWER (with the AFD within the target band) provided the time duration of the devia-tion is limited. Accordingly, a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> penalty deviation limit cumu-lative during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is provided for operation outside of the target band but within the limits of Figure 3.2-1 while at THERMAL POWER

~

levels above 50% of RATED THERMAL POWER.

For THERMAL POWER levels between 15% and 50% of RATED THERMAL POWER, deviations of the AFD outside of the target band are less significant.

The penalty of 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> actual time reflects this reduced significance.

Provisions for monitaring the AFD on an autcmatic basis are derived frem the plant process computer through the AFD Monitor Alarm.

The ccmputer determines the one minute average of each of the OPERABLE excore detector outputs and provides an alarm message if the AFD for at least 2 of a or 2 of 3 OPERABLE excore channels are outside the tarcet band and the THED!AL POWER is greater than 90% or 0.9 x APL of RATED THERMAL POWER (whicever is less).

During operation at THED%L F0WER levels between 50% and 90% or 0.9 x ADL of RATED THED%L POWER (whicever is less) and between 155 and 50% RATED THEDML POWER, the ccmputer outputs an alarm message when the penalty deviation accumulates beyond the limits of I hour and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, respectively.

Figure 3 3/4 2-1 shows a typical monthly target band.

l The bases and metnodology for establishing these limits is presented in topical report XN-NF-77-57, " Exxon Nuclear Power Distribution Centrol for PWR's-Phase II" and Supplements 1 3,nc 2 to that re;crt.

l I

l i

l.

D. C. CC0K - Unit 2 8 3/4 2-2 Amencment No. 44 l

1 l

l 1-

.. _..