ML19209B776

Environ Interaction Rept

ML19209B776
Person / Time
Site:	Hatch
Issue date:	10/05/1979
From:	GEORGIA POWER CO.
To:
Shared Package
ML19209B771	List: ML19209B770 ML19209B776
References
NUDOCS 7910100436
Download: ML19209B776 (14)

Text

o .

.

~

GeorgiaPower A Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission October 5, 1979 Page Two (f) Transiant and accident analyses of BKR's are conservatively bounded in mest cases with respect to non-safety system performance.

In summary, this submittal is a reevaluation of the potential impact of non-safety systems on safety functions. The previously approved safety evaluations remain valid. Further dialogue or discussions in this area, if necessary, should be conducted after the Lessons Learned Task Force Recommendations and the Bulletin & Orders Analysis tasks are resolved. It is concluded that the information contained in this submittal justifies continued operation of the Hatch Nuclear Plant.

I certify that the information contained herein is true and correct to the best of my knowledge, information and belief.

Very truly yours,

~

6 i, v' I 2D u L b !L<Y' W. E. Ehrensperger ,

WEB /mb xc: Mr. Ruble A. Thomas George F. Trowbridge, Esquire Sworn to a ubs ribed before me th SchdayofOctober,1979.

, -

J '

M- }Y s Notary Public Notary Public, Georgia. State at Large My Commission boires Sept 20.1983

.

'l910100

, -

EDWIN I HATCH NUCLEAR PLANT DOCKET NOS. 50-321 AND 50-366 ENVIRONMENTAL INTERACTION REPORT ENCIDSURES ;

Table I -

Non Safety Systems Not Involved in High Energy Pipe Break Analysis Table II Unit 1 Environmental Interaction Table Table II Unit 2 Environmental Interaction Table Page A -

Table Explanation Page B -

Explanation and Final Conclusion

_

1139 '10

. .

TABLE I NON SAFETY SYSTEMS

'

NOT INVOLVED IN HIGH ENENGY PIPE BREAK ANALYSIS SYSTEM Rod Worth Minimizer System Computer Syste.

Ares Radiation Monitors Startup Recording Systen (Startrec)

Off Gas System Radwaste Solidfication System Heat Tracing System Fuel Eindling Equipment Fuel Pool Cooling System Maintenance Monorails And Hoists Seismic Measurement Equipment Loose Parts Monitoring System Turning Gear Generator Generator Hydrogen Seal Oil Generator Cooling Generator Buses Generator Excitation Demineralized Water System Sampling Systers Plant Heating System Heating And Procecs Steam System Turbine Building Chilled Water System Security Systems Communications Systems Intergrated Leak Rate Test System Radwaste Building Vent System Radwaste Building Fire Protection System Cooling Towers Systems Screen Wash System Circulating Water Screens, And Trash Rakes Hot Machine Shop Systems Switchyard Systems Tornado Roof Vents Deep Well Pump System Plant Lighting Systems 1139 :11 Page I-I

. .

. .

,

G RN 9 , 4 4 4 4 4 4 4 4 4 4 4 4 4 OI 4 , 4 1 l+

IrD CcL PAI HEURB G

1 RN

- OI 4 4 4 4 4 4 4 4 4 4 4 l

CTS I CI 4 4 4 1 7 4 4 4 E CAI G REU -

A RB P

Ri E OI g , 4 4 4 4 4 4 2 4 4 4 4 UID 4 4 1 9 4 4 4 CCL WAI REU RB

,E G 4 4 4 4 4 4 4 4 R 2 3 4 4 4 , 4 4 4 4 4 4 A A C I D

I L L 4 4 4 4 A 2 3 4 4 4 , 4 4 4 4 4 4 4 4 4 4 M

S E

!

I . 2 4 2 2 4 2 2 2 2 2 BG 4 4 4 2 , 2 2 4 2 RD 1 L R

lnB T

I E R N E T O U L A T .

2 4 4 4 B W 4 1  ? /4 2 4 4 4 4 4 4 4 4 T A D C.

f O G 4

-

N T E EL A E RB 4 I N F .

P O E I D 4 4 R T I 2 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 A C S E A N L R I C E U T E N N f I .

I 2 4 l

BG 4 4 2 , 2 2 4 2 2 2 4 2 2 2 2 2 l 4 C L RD i T A r

UL TB A

I f I f E R

. M O I N M I . 4 O A CG 4 4 't 2 , 4 2 4 4 4 4 4 4 4 2 4 4 4 N R F AD I I T EL W V S RB D N E E N E I DE A I G 2 ,

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 M SR NA I l r

-

E DL 4 IL 2 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 SA NM I S N B O R B B I / R T T U B n B / B R B B B R B B / B B A D R R T B T C T T T C T T B T T .

C / T R D

I R

C

. .

s s n n

• a . a

" r r s r s 2 I T e y T r

-

g s o m 1

. r

..

. s

,

l l r

. S n kA . e v

s n

e '

. e t o e l i t t p

t.

r n r p o t s l e s 1

O n r e t O r. a t n r a S y

- I a m n e n I a V S 9 1 6 " e e o & r l

I e e e 1 l g l C o m l o

g s s

r u

l o

3 s t o h E s C . u h E s e e r c l s e r r r c a s r 1 L S p v S t t w e p v w t t t t P s t l M m l C n i o v m l C o w s n i e n!

l A

E u a G C o w l e u a C l d n o w y r o T V C S F P V M F F I C S B P C T S P M-M L Y

S f 0 ,E* "

go' m ao<, js: ne { oh f ,5 f,$

.

. -

.

G RN 4 OI  ? 2 2 4 4 2 1 4 2 2 3 1 4 ITD CCL PAI HEU RB 2 G

- RN 1

OI * .

CID 2 2 2 4 4 2 3 4 2 2 3 3 4 4 E ICL .

.

C CAI A .

REU s P RB G

RN OI UIB 2 2 2 4 4 2 4 4 2 3 4 4 4 4 CCl WAl REU RB _

E G

R 2 2 2 4 4 4 3 2 2 3 4 4 4 s 4 A A e C I g D

I L a L P A 2 2 2 4 4 4 3 2 2 3 4 4 4 g 4 M n S i E w N o I . l l

BG 4 4 4 2 4 4 4 4 4 4 4 4 2 o 4 RD 1

UL F IB n T R o I E R N 2 T O y U I A I .

B W CG 2 2 2 4 4 2 3 4 2 2 3 3 4 l

l 4 T A D AD N T E EL a A E RB u I N F d i

P O E I D i v

R T I 2 2 2 4 4 4 3 2 2 3 4 4 4 d 4 A C S n

EA N L R I I C E U T E d I. N N e I I . t

!

BG 2 s 4 l

C L RD 4 4 4 2 4 4 4 4 4 4 4 4 i T A 1 1 L L A T 13 e

I I N r E R

. M O , a I N M T s

O A CG 2 2 2 4 4 2 3 4 2 2 3 3 4 4 N R E AD m I I T EL e W V S RB t s

D N E E N E y I DE S A I G 2 2 2 4 4 4 3 2 2 3 4 4 4 g 4 H SR n NA IL i d

E l DL i IL 2 2 2 4 4 4 3 2 2 3 4 4 4 u 4 SA B NM I S N B O B R

B R

B R R

-

B W C B B B I R D / R R R T / / / B B C / / B / / / DB l A W W W T C / W R R W R R RT l C D D D B D C / D C C A A D

R W D

Y I

- *

. r .

n ) . o s n y o m S t S 3 H a D o li l g r

.

s s r A H on on y 1 e e k c l oo oi t l c S a n e PM Pr W r e

1 b o u o p o g a a l e n N i ne nt n

m e

t C B n E a ( P or oi t i " M iu in i t a 9

& & d b 8 . l st so t s B o r rl s i sa sH a y 3 S R u oo y a er e l S E S / T #' t r S T W re rl u I 1 M 'H S ct . C U pp pe c . C E R I S 8 an V V s C C pm8 pv rs A n 1 T P P P E eo R R y B W ue" ue iy V o S L A R R N RC S SS R B STI SL CS I I N Y

S _

E c

z ,

_

.

-

G RN 3 4 2 4 2

OI 3 2 4 4 4 2 2 4 4 4 ITD CCL PAI J

HE R 'B G

3

-

RN _

OI 4 2

l CTD ICl 3 2 4 4 4 2 2 4 4 3 4 4 2 E . CAI .

G REU A RB P

G RN OI 2 2

UTD 3 4 4 4 4 4 4 4 4 3 4 4 2 CCL WAI REU RB E

G A

C D

R A

L 4 4 4 4 4 4

.

4 h 3 4 2 4 2 3 2

I L L

A S

M 4 4 4 4 4 4 4 h 3 4 2 4 2 3 2

E N

I . 4 BG 2 2 2 2 4 2 4 4 4 4 4 4 4 4 RD 1 J L

T R RB I E R N E T O U L A T .

2 B W D AD CG 3 2 4 4 4 2 2 4 4 2 4 3 2 2 T A N T E EL A E RB I N F P O E I D 2 R T I 4 4 4 4 4 4 4 2 3 4 2 4 2 3 A C S E A N L R I C E U T E N N NI .

I I

BG 4 4 4 4 I

2 2 2 2 4 2 4 4 4 4 4 C L RD T A U L A T TB I

I N E R

. M O I N M T .

2 O A CG 3 2 4 4 4 2 2 4 4 2 4 3 2 2 N R E AD I I T EL W V S RB D N E E N E I DE 2 A I G 4 4 4 4 4 4 2 3 4 2 4 2 3 M SR 4 NA IL E

DL IL 4 4 4 4 4 2 3 4 2 4 2 3 2 SA 4 4 NH I S H

N i B B B T l l B B O r T R / R R R I T T B B W B W H / / /

T B B / /

W A

/

B

/

B T T C B R D W R D R W W D R R R D / D D C W D

I D

r m l n n n . e e

- e o - o h o y s v f

n d t r oi c i S y i s o n r& s t rt t t S r n C A i y n P a i c . D y

a Ar n S o t d e t .

r & r o o C rn r e#

ee S t i a

T r

e C e e ss i c t e n t g n"

i s l t i n . l m . D o s ege n b e e n a l nl c L) q i u t M i i l E e a r e . m V i. or e k I R x t a b d t p t aa Bt sD a .

uc ar r& n pm o rr d 1

e p p p#

Ai snto T u ol uol r d c a y rn . L m m U r Co rC o P m yS e b aI k e u

.t eS s r r r e i

- i d e m T P t S

M Cc e

d nd nl io nt e .t et rs l

Do n

l n

a l s L a .

es V r"

a E i n t sn V cs V t T

.l on ar ao nyo i y RN P t ue P t y P e t S AE cA Mt Hc I SC FS C( R S Nc R SS R J SI g

( a ,

U

_

.

G RN A 4 2 3 2 OI 2 2 3 3 3 2 / 4 4 4 4 ITD N CCL PAI HEU RB G

4 RN

- OI A 2 3 2 1 CID 2 2 3 3 3 2 / 4 4 4 4 4*

I CI N '

E CAI G

.

REU

• A RB P

G RN OI A 2 UTD 3 3 3 4 / 4 4 4 4 4 2 4 CCL 2 2 N

WAI REU RB E

G A ,

2 4 R 4 4 4 4 4 2 / 2 4 4 4 4 4 A

C A

1 N

1 l D

I L L A A 4 4 4 4 4 2 / 2 4 4 4 4 4 2 4 M N S

E N

I .

BG A 2 2 2 4 4 4 4 4 2 4 4 2 / 4 2 1 RD N UL TB T R I E R N E T O U L A T . A B W D AD CG 2 2 3 3 3 2 / 4 4 4 4 4 2 3 T A N I

T E EL N E RB I N F P O E I D A R I' I 4 2 / 2 4 4 4 4 4 2 A C S 4 4 4 4 N N E. A I R I C E U T E N N N I I .

l BG A 4 l

4 4 2 4 4 2 / 4 2 2 2 2 4 C L RD N T A UL A T TB I

I N

E R

. M O I N M T . A O A CC 2 2 3 3 3 2 / 4 4 4 4 4 2 3 N R E AD N I I T EL W V S RB D N E E N E I DE A A I G 4 4 4 4 2 / 2 4 4 4 4 4 2 M SR 4 NA N Il E

DL A IL 2 / 2 4 4 4 4 4 2 SA 4 4 4 4 4 NM N I S N ,

B O T B I B /

R T T B A B 8 B B R / W B B B B B /

A R

/

B t R / N D T T T T R W C R I D

D R W I D

.

g g n n p C

i i u s A en nm s n

l o

n a w m e

m e

ga

.

N g c

ro oe o ny n

i oi n it e o m e l n t t m i S I

t a b ct w t s d C e l l o s s e d .

i na o ay n t C ei y y t l g l m m u i I r d iS o n s B t S S s y i r

.

d oe e b t d C w y r c ut ot gi u ag o S e ge l l S BW l

B C s n nl h R n m d t nt a a y P i a S i a t e a i e e e l ee r l S sC sr e u t W l D S S i nc o l l 9 r m em so t h s e n e m d O ii t e r we l

e 3 S eee t e et S S uk a n e b v c M vb t ot ci e w u r r a yt w '

E aos ms on Rd R d r f a ee e a b ue e ra y r

T S

rry TPS ey RS ro PM l

io HM li R

a R T o RL S t l G L u TS R DW D *n f.

?

_ .

G t N

'

OI 2 2 3  ? 9 2 4 4 4 ITD CCL PAI HEU RB G

5 RN

- OI 1 CTD 2 2 3 2  ? 2 4 4 ( , 4 ICL .

.

E CAI G , REU .

A RB P

G RN OI UID 4 4 4 2 2 2 4 4 4 CCL WAI REU RB E

G R 4 4 3 4 4 4 4 4 4 A A C 1 D

I L L

A 4 4 3 4 4 4 4 4 4 M

S E

N I .

BG 4 4 4 4 4 4 2 2 2 1 RD UL 1 B T R I E R N E T O U I A T .

B WD CG 2 2 3 2 2 2 4 3 4 T A AD I

T E EL N E RB I N F F O E I D R T I 4 4 3 4 4 2 4 4 4 A C S E A N L R I C E U T E N N N I I .

l BG 4 4 4 4 4 4 2 2 2 iC L RD T A 1 1 L A T 1B I

I N E R

. M O I N M T .

O A CG 2 2 3 2 2 2 4 3 4 N R E AD I I T EL W V S RB D N E E N E I DE A I G 4 3 4 4 4 4 4 4 H SR 4 NA I L E

DL IL 3 4 2 4 4 4 SA 4 4 4 NM I S N

O B B I

T R C B B / B B B B B /

A R R W R R R T T B C D T D

I

- - "

- - s - m s ~ m t s y g s s e y e

. gt a oS n ue gt gS ns l

l e g m i rr ns n i y r n t n t oP i y i n on T i A o r T dS d o dS 6 Co l i e l l l i l 1

i . i n i n nt t s o t t n d a it uo i cs a o nu I ni uo uc '

At Bi B e Bi aen G C el rtI mi n n t t t De y l nD e l e ea ee l a i g l r nl nD ol 9 r D me b l ri S d e ae o ee i i i bk t t 3 M okt nt w t r r . wf e bt r am nn E oas an y r

nem t s i y yf r r n ue uee oe 1 T l ey t e D

oh e C pt NS iri D su TV TLt cV S FLS S m l 1 Y

S

-

.

.

.

' .

,

.

G RN 4 4 4 1 2 2 4 4 4 4 4 4 4 4 4 4 ^ 4 4 4 OI IID CCL PAI HEU RB 1 G

- RN 2 OI 1 2 2 4 4 4 l. 4 4 4 4 4 k 4 4 4 4 CID 4 4 4 E ICL G . CAI A REU 1

l RB G

RN OI 4 4 4 4 4 4 4 4 2 4 4 4 1 UTD 4 4 4 1 2 2 l.

CCL WAI REU RB E

G 4 4 4 4 4 4 /, 4 4 4 l+

R 2 3 4 4 4 4 4 4 4 A

C A I

)

I I L L 4 4 4 4 4 4 4 4 l+

A 2 3 4 4 4 4 4 4 4 4 4 M

S E

N I . 2 2 2 2 2 4 2 2 4 2 2 4 2 2 BG 4 4 4 4 2 4 2 RD UL

' B I

T R I E R N E T 0 U L A f . 2 4 4 4 B W D AD CG 4 4 4 3 2 2 4 2 4 4 4 4 4 4 4 4 T A N T E EL A E RB I N F P O E I D 4 4 4 4 4 4 R T I 2 3 4 4 4 4 4 4 4 l+ 4 4 4 4 A C S E A N L R I C E U T E N N N I I . 2 2 2 4 l

BG 4 4 4 4 2 4 2 2 4 2 2 2 4 2 2 2 l

C L RD T A r UL AI f TB I f E R

. M O I N M T .

4 4 4 4 2 4 4 4 4 O A CG 4 4 4 3 2 2 4 2 4 l. 4 N R E AD I I T EL W V D N S RB E E N E I DE A I G 2 3 4 4 4 4 4 4 l. 4 4 4 4 4 4 4 4 4 -

M SR NA IL E

DL 4 4 I L 2 3 4 4 4 4 l. 4 /* 4 4 4 4 4 4 SA NM I S 1

N R O / B I B R T W B R B B B R B B / B B B A D B

R B

k /

T p /

B r

, C r

' T T C T T T r

-

T C R T D

I _

C

. .

s s n n

. a . a s '

s r r s r y T e y T r

. l . S g p s o m '

r . s l r n l . e s e '

2 e t t o e l i A t v n t s

p s n r p o t s l e r a n r a S y

-

O r n r e t O t n a S Q I a m n t e I V I & n e e o & n H e e e 7 l g l C o m l g s r l I

s o h E s C . u o h s u o s e

• r c s e r r r c a s r }

E S l p v P s t L M p v w t t w e w t t t n

t e n 1 B E m l n i o v m l o w s i o

A u a o w l e u a l d n o w y r T P V " C S F L P V " F F I C S B P C T S Y . p0 , E S

go @ o y ge" gu Do h n

f 5tS

. . . -

G RN 2 2 2 4 4 2 1 4 2 2 3 1 4 4 OI ITD

' CCL PAI HEU RB G

RN 2 OI 2 2 2 4 4 2 3 4 2 2 3 2 ( . 4 4

- CrD 2 IcL '.,

.

CAI E REU s G RB A G P RN 0I 4 2 4 4 2 3 4 4 4 4 UrD 2 2 2 4 CCL WAI REU RB E

G 2 2 2 4 4 4 3 2 2 3 4 4 4 4 R s A A e C L g D a I L P L 3 2 2 3 4 4 4 4 A 2 2 2 4 4 4 g M n S i w

E o N l I . 4 4 4 4 4 2 l 4 BG 4 4 4 2 4 4 4 o RD F 2 UL TB n T R o I E R N E T O y U I A I . 2 4 4 2 2 3 3 4 l 4 B W CG 2 2 2 4 4 l T A D AD a N T E EL u A E RB d I N F i P O E v I D 4 3 2 2 3 4 4 4 i 4 R T I 2 2 2 4 4 d A C S n E A N I L R I i C E d U T E e N N N t I I . 4 2 s 4 I

I BG 4 4 4 2 4 4 4 4 4 4 4 i C L RD L T A UL A T TB e I

I N r E R a

. M O I N M I . 2 3 3 4 s 4 O A CG 2 2 2 4 4 2 4 4 2 m

N R E AD e I I T EL t W V S RB '

s D N y E E N E S I DE 4 4 4 A IG 2 2 2 4 4 4 3 2 2 3 4 g M SR n NA II i

d E

DL 1 2 2 3 4 4 4 l

i u 4

_

IL 2 2 2 4 4 4 SA NM I S B

_

N P /

W

-

B B R C B R p O C D / R C g D I R R R T / / B B / / / B / / f l A U W T C B R R W B n AB l C D D R D C / D R N YT A A W D

I

- .

.

.

r s n ) . o y M

o a

m S D

n o li on t

l g on r

. S _

s s r A H oo oi t y e e k c l a n e PM P r W r 8 l c S p o e b o u o g m t i a a l e n N i ne nt n e t C B n t a ( P or oi i n i t a '

i e M iu s B

& & d b S . l st so t a y o r rl n i sa sM E R u G oo y a er e l S 9 S S T W re rl u I S / T M t r U pp pe c . C 3

'M M S ct . C pmg pv rs A n M S S an V V s C C o E R I B W ue n ue iy V 1 T P P P P eo R R y SL CS t N

L A R R R RC S SS R R STi I 1

S Y

S c$

4

' . .

G RN 2 2 4 a 1 4 4 2 4 2 OI 1 2 4 4 ^

ITD CCL PAI HEU 3 RB

-

2 G RN E OI 2 G CTD 3 2 4 4 4 2 2 6 4 1 4 .

4 2 4 A ICL P CAI

.

REU .

RB G

RN OI 2 2 2 UID 3 4 4 4 4 4 4 4 4 1 4 4 CCL WAI REU RB E

G 2 3 2 R 4 4 4 4 4 4 4 3 4 2 4 A A C L A

I L L 2 A 4 4 4 4 4 3 4 2 4 2 3 H 4 4 S

E N

I .

BC 2 2 2 2 4 2 4 4 4 4 4 4 4 4 4 2 RD 1 L 1

1 B T R I E R N E T O U L A T . 2 B W D

CG 3 2 4 4 4 2 2 4 4 3 4 3 2 2 T A AD N T E EL A E RB I N F P O E I D 2 R 3 A T C

I S 4 4 4 4 4 4 4 2 3 4 2 4 2 E. A N I R I C E U T E N N N I .

I l

i BG 2 2 2 2 4 2 4 4 4 4 4 4 4 4 4 C L RD T A UL A T TB t

I N E R

. M O 1 N M T .

O A CG 3 2 4 4 4 2 2 4 4 3 4 3 2 2 2 N R E AD I I T EL W

D V S RB N

E E N E I DE A IG 4 4 4 4 4 4 4 2 3 4 2 4 2 3 2 H SR NA I I E

DL 2 I L 4 4 4 4 4 4 4 3 4 2 4 2 3 2 SA NH I S B

N B B B B T B B B O T T T R / R R R I / / B B B / B W / l i W B / /

W

/

W T B B T T C B R D W R D R N A R R R D / D D D C W D

I D

m l n n a . e r - e o - o h o y s v e n d t r oi c i S y i f o n r& s t rt t t S r s C A i y n P a i c . D y n Ar n S o t w e t .

a o r e r & r e sos C c. en S t i a r e i c t e n t g i T e C s l t i n . am . D o s n" n a ege n b e e M l nl c l) q i-i t i i l E e a r e um V i or e k I R x t a b d t p t aa L B t s D a .

uc ar r& n pm o rr d e p p p#

Ai snto u ol uoi r d c a y rn . L m e

m u

U r T Co rC o P m yS e b aI k S

.t eS s r r r e i l - l l d e L m T P t r*

M Cc d nl nt e .t et n n l s a .

a s

.

E e nd io i n t s n 'r s 0 o V a cs V ea V t y

e T

S AE

.l CA on ar Ht ao MC nyo I SC iy FS RN C(

P R S t ue Nc P

R t y S

P R J S t

"S Y

S

- ._u %

_

.

"- % n

. . .

G RN 4 4 2 3 2 OI 2 2 3 3 3 2 3 4 4 4 ITD CCL PAI HEU 4 RB

-

2 G RN E OI ,4 2 3 2 G CID 2 2 3 3 3 2 3 4 4 4 4 A ICL '

'

P CAI

.

REU '

RB G

RN OI 4 4 4 2 4 2 UID 2 2 3 3 3 4 4 4 4 CCI WAI REU RB E

G 4 4 4 2 4 R 4 4 4 4 4 2 4 2 4 4 A A C L D

I L L 2 4 A 4 4 4 4 4 2 4 2 4 4 4 4 4 M

S E

N I .

BG 4 4 2 4 4 2 4 4 2 2 2 2 4 4 4 2 RD UL T B T R I E R N E T O U I A I . 2 B W CG 2 2 3 3 3 2 3 4 4 4 4 4 2 3 T A D AD N T E EL A E RB I N F P O E I D R T I 4 4 4 4 4 2 4 2 4 4 4 4 4 2 4 A C S I AR N T I C E U T E N N N I .

I l

i BG 4 4 2 4 4 2 4 4 2 2 2 2 4 4 4 C L RD T A I L

AI I

T N

RB E R

. M O I N M T .

O A CC 2 2 3 3 3 2 3 4 4 4 4 4 2 3 N R E AD I I T EI W V S RB D N E E N E I DE A IG 4 4 4 4 4 2 4 2 4 4 4 4 4 2 M SR NA II

-

E DL IL 4 4 4 4 4 2 4 2 4 4 4 4 4 2 SA NM I S B

N ,

T O B / B I T B R T

A B B / B B R B W B B B B T

B F

/

W C R R B R R / R D T T T D

R W D

I D

g n

M n p C Wem #

i i u s . A D, t s c "

en nm oe s

n l

o n

a w m e e m gs VI gy i '

ro n it e o m e o t t m ny I nS t oi t s d C e l l n s s e i S i a ct w l o y y d .

d r m na o ay n t C ei t

s l . g l e u F I r d iS o n s B t S S y i r d i t e b t d C w y r c ut l ua n 7) gi u ag o S e ge l l S BW B P nl h R n m d t nt a a BW i a S i a t e a i e e e l ee r sr e u W S S i o rd l sC t l D nc oe r m em so S

t h S

s a a e m d O ii t tl l

e S eee t e et e n uk a n e bv c cl w .

M vbt ot ci w f a a rr a ys E aos rry ms ey on ro Rd l

io R

l d

a r

o ee e t l b

u ue R

e ai eh ry T i R T RL S G L TS RC DS S TPS RS PM RM R Y

S

. .

G A RN 2 2 / 4 4 4 OI 2 2 3 ITD N

• CCL PAI l

l EU 5 RB

-

2 G RN A E OI 4 4 4 G CTD 2 e 3 2 2 /  :

A ICL N ..

P CAI

. REU .

RB G

RN OI A 4 4 UTD 4 4 4 2 2 / 4 CCL N WAI REU RB E

G A 4 R 4 3 4 4 / 4 4 4 N A

C A

I O

I L L A 4 A 4 3 4 4 / 4 4 M 4 N S

E N

I . A 2 2 BG 4 4 4 4 / 2 RD 4 N 2

UL TB T R I E R N E T O U L A T . A B W CG 2 3 2 2 / 4 3 4 D AD 2

T A N N T E EL A E RB I N F P O E I D A 4 R T I 4 4 3 4 4 / 4 4 A C S N E A N L R I C E U T E N N N I I . A 2 l

BG 4 4 / 2 2 i

RD 4 4 4 C L N T A UL A T TB H N E R

. M O 1 N M T . A O A CG 2 2 3 2 2 / 4 3 4 N R E AD N I I T EL W V S RB D N E E N E I DE A A I G 4 3 4 4 / 4 4 4 M SR 4 N NA I 1 E

DL A I L 4 3 4 4 / 4 4 4 SA 4 N NM I S N

O B I R A G T B B / B B / B B /

A R R W R R N T 'i C D D

I

- -

- - s - m s m

. t s y g s s e y e n ue gt gS gt l a oS ns n ns l e g m i rr i y r n t n t oP i y i n on T i Ao r T dS d o dS Co l i e l l l i l l

i . i n nt t s o t t n d a i n i t uo 2 ics a o nu I ni uo uc At Bi B e Bi aen G C el n

'

rt I mi n t t t De y l nD e l e ea ee l a i g l r nl nD ol Dm b l e ae o ee ii i ri 9 r e d bk t t rrt.

M okt nt w t r r . wf " b r a nn 3 E oas an y r

ne* t s i y yf '

ri " ue u e "" oe T l ey t e oh

• CV 1 S FLS S m D C pL NS DD 8 TV TL' Y 1 S

.

TALLE II-l AND II-2 LEGEND l- Environmentel Induced Malfunction May Provide Adverse Response.(

2- Environmental Induced Malfunction Will Not Provide Adverse Response.

3- System Is Qualified For Adverse Environment 4- System Will Not Experience Adverse Environnent ABBREVIATIONS M.G. - Motor Generator MCC - Motor Control Center SYS - Systen INST - Instrumentation TRANS - Transmitter MONIT - Monitoring RPS - Reactor Protection System RBCCW - Reactor Building Closed Cooling Water System RWCU - Reactor Water Clean Up System ISOL - Isolation RPV - Rehetor Pressure Vessel LIQ - Liquid CRD - Control Rod Drive RHR - Risidual Heat Removal System DR - Drywell RB - Reactor Building TB - Turbine Building CE - Control Building CR - Control Room N/A - Not Applicable NOTES (1) An adverse response was considered ,* be an increase in previously reported peaks in; a) Drywell Pressure b) Wet Well Pressure c) Suppression Pool Temperature d) Fuel Clad Temperature e) Radiological Release

<;q Page A

. ,

.

9 EXFIANATION OF CODE 1 RESPONSE RPV Head Vent Opening Upon A LOCA The reactor head vent line is a small (1") line with two valves ( ")

which are air operated. The valves in the original FSAR analysis for LOCA were assumed to remain closed during.the accident. This assumption and the conclusion that the valves were not required after the accident, precipitated the purchase of pilot solenoids for the air operated valves, which are not specifically qualified for a post I4CA (steam) environment.

This event has now been analyzed by General Electric Company for a 2" head vent line with the following result:

To bound the worst case they have assumed a LOCA combined with a simul-taneous opening of this vent line. Depending on the size of the LOCA, there could be a + 100 F impact on peak clad temperature. A later opening of the head vent line would reduce the maxicram effect stated above, and since the Hatch Plants have smaller lines than those which were analyzed, the impact on peak cladding temperature is less and considered insignificant.

Final Conclusion This assessment has not identified any impact on safe ty actions or analysis conclusions which would increase the consequences of any SAR events.

1139 :23 Page B