Text

Proposed Tech Specs,Revising Section 3.7.1.2 to Clarify & Expand Svc Water Pump Operability Requirements,Thereby Better Reflecting Plant Design
	ML20012A426
Person / Time
Site:	Brunswick
Issue date:	02/28/1990
From:	; CAROLINA POWER & LIGHT CO.
To:	;
Shared Package
ML20012A424	List: ML20012A423; ML20012A426;
References
	NUDOCS 9003090515
	Download: ML20012A426 (10)
	v • d • e

. %,,n s dig:t >,

ws%

7 a

5=,:

. =

,-3;n

e: m... :,

.w

+

_a

.d'h ((t'!' N'rf k

.ks

'(-

.5 g

y

.jj'j. #[

[(m[,

,g${

31,.

(

t s

.y'[I t

j m

..y ro

,c k III, _. -3_

h '%l

.w.

O pcw+y, ' '.,

s MM, 3 -

u 1

U:y'

i -

s

~::

p..c pl$hM a

. w pyvi cENCLOSURE'3- '

e.

i$? jjl:' Or;

. BRUNSWICK l STEAM-ELECTRIC PLANT, UNITS:1'AND~2:

~

/

~

NRC DOCKETS-50-325 & 50-324'.

N.

OPERATING' LICENSES DPR-71 O DPR-62' M

REQUEST FOR LICENSE AMENDMENT

~

9

,Le W

SERVICE WATER. SYSTEM s

a b,,,,

p;r a

W. > > _

y. w, p.

q

'[

s 7

bM

=A:

p ~ 3 (t

m.,m

+,

m

- TECHNICAL # SPECIFICATION ' PAGES - UNIT 1-b 1

g)_

m:,

v-a g

y.

4-bj c g1 v

p:;

s I 4; p*

v.

>v u,

h *{ },,

'1 I..

'b.

i3

.,t ms

}.'( d pj t

n :.n 4

.3

. y.

1 py 1

m ;._ -. o n,

s '

J7 P j.j...-

s 1, f

,t._m( %e

..,i 1

J

,a

,. j '$

r 2

)

,3 e

a f

.J r

4 Th 1

V l;

t_k; o

s,,

U, li3 M

< : +c: a

.. 4.0 p ;L,,

U >

nis

'il 4

'f

) }t

!! i j re f ).'

. /( e

- }

=,5 f

..~

a y%

1 ; w

,u,

4 Y'

' a, :.s..

5 q.

g..;.'.A k $

F a-j i(

i y

-.4

. :. L I

r s')~ >+

9003090515 900228 RN

{

a g4' PDR ;ADDCK 05000324

%g

.hy

? (;y": -

4

. P PNV m

m.-

?

a.

^

i~.-ak-i, vy A' f,+:4-wyne w-3

? fL ' ?" j w

' ).;

,.;. ;. t -

j s

l?n; ;

m 4~

+

,i i

~ UNIT 1 PLANT SYSTEMS 4

SERVICE-WATER SYSTEM a

=

i

LIMITING CONDITION.FOR OPERATION.'

i UNIT 1 l.

3.7.1.2: The service water system shall be OPERABLE with at

.least:

In OPERATIONAL CONDITIONS 1, 2,

and 3

- Two OPERABLE ' nuclear service water. pumps, and two OPERABLE 1 I

- conventional service water pumps capable of supplying the

~

nuclear and conventional headers.

In OPERATIONAL CONDITIONS 4 AND 5

-i I

Three. OPERABLE site nuclear service water pumps; and two

' OPERABLE Unit 1 service water pumps, nuclear and/or conventional,fpowered1from separate 1 emergency buses and capable of supplying the nuclear header.

APPLICABILITY:' OPERATIONAL CONDITIONS.1, 2,

3, 4,

and 5 ACTION:

a. :

In OPERATIONAL CONDITION 1, 2,

or 3 :

L

. 1.

With two OPERABLE conventional service water pumps _and L

only one nuclear service water pump OPERABLE, restore the-remaining nuclear service water pump to OPERABLE l.

status within 7_ days or.be in HOT SHUTDOWN within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and' COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

u 2.

With no OPERABLE nuclear service water pumps, i

regardless of conventional service water pump status, 4

be.in at-least HOT SHUTDOWN within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the'following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , i

3.

With two OPERABLE nuclear service water pumps and only one conventional service water pump OPERABLE, restore at least one additional conventional service water pump to-OPERABLE status within 7 days or be in HOT SHUTDOWN within 12 and COLD shutdown within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

.u

d -

r

, 91 c

4.

With two OPERABLE nuclear service water pumps and no

' conventional service water pump OPERABLE, restore at least one conventional service water pump to OPERABLE q

status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months and restore the remaining conventional, service water pump' to' OPERABLE status within 7 days from~the time of.the loss of the first i

pump.

Otherwise, be in at least HOT SHUTDOWN within-the next 12 - hours and in COLD, SHUTDOWN within the S

followingo24 hours.

5.

With :only one cnuclear service waterL pump and one.

conventional-service water-pump OPERABLE, restore at least one additionalf service water, pump, nuclear or 1

conventional, c to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months and restore the remaining service water pump to OPERABLE status within 7; days from the time of the loss of the-first-pump.-

Otherwise, be in at_least HOT SHUTDOWN within the next.12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within theEfollowing 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

l 6.

' With one OPERABLE nuclear service water, pump and no a

/

OPERABLE conventional service' water pumps, be in at l

least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLDJ-L SHUTDOWN within the following 24-hours.

b.

In OPERATIONAL CONDITION 4 or 5:

1.

With oneLless than the required' number of nuclear-i i

service water pumps OPERABLE per site, restore at least L

oneLadditional nuclear service' water pump to OPERABLE-L status within'14 days or declare the diesel generators-inoperable andJtake the ACTION required by Specifications 3.8.1.1 or 3.8.1.2 as appropriate, (J

2.

With.the service water system nuclear header inoperable, or.no Unit i nuclear service water pumps g:

operable, operation mayicontinue provided that the L

service water system conventional header is OPERABLE O

with at least two conventional service water pumps L

OPERABLE.

Restore the service water system nuclear L

header:to OPERABLE status.within 14 days or declare the Core Spray-System and LPCI System inoperable and take the ACTION required by Specifications 3.5.3.1 and 3.5.3.2.

Also,-declare the diesel generators L

' inoperable and take the ACTION required by y

Specifications 3.8.1.1 or 3.8.1.2 as appropriate.

3.

With less than two OPERABLE site nuclear service water pumps, declare the diesel generators inoperable and take the ACTION required by Specifications 3.8.1.1 or 3.8.1.2 as appropriate.

E

~

n....

.W -

~

- C;-

i.

i 4.

With :only one Unit 1 service water pump -OPERABLE,

. restore at least one additional Unit 1 pump, either nuclear or conventional, powered from a separate emergency bus,cto1 OPERABLE status within 7 days:or declare the; Core Spray System and the LPCI System

' inoperable ~and take the ACTION required by Specifications 3.5;3.1 and 3.5.3.2.

g..,

r i

s 4

i i

1:

(.~

L E

'}

l l

L 1

i L

1

p

[ yq, :4 W

G.,

'O E

'E *6

~ INSERT F0'R BASES 3/4-7.1L O

i 2 During the initial stage.of a DBA= (0-10 minutes), the service water system.

_provides' lube water and service water cooling to the diesel generators.

The,

[t

' service water system design allows either unit's' nuclear header to supply _ _

l

^

, diesel generator cooling water. One pump.can supply sufficient flow to cool

.allifour_diescl generators. Therefore, any combination lof two operable s

N, nuclear service water pumps will meet the single failure criteria and assure diesel generator cooling.

The requ bement for two operable nuclear service'

[m

' water pumps ' associated with a unit in OPERATIONAL, CONDITIONS 1,- 2, or :3 and at j

if least two operable nuclear service water pumps per site when one or both units a

are in OPERATIONAL. CONDITIONS 4 or 5 ensures that emergency diesel generator-cooling requirements are met.

[

?

~After th'o initial ten minutes of a DBA,- additional loads require' cooling g

ll water. 'These loads include-RHR and CS pump room coolers, RHR service water i

heat exchangers, and RHR pump seal _ heat exchangers.

Evaluations have determined that the RHR pump seals, as well as the equipment in rooms serviced by'the RHR and CS room coolers, remain within the manufacturers' temperature limits for the first ten minutes of a DBA. To meet. the additional loads during the post-ten minute stage of a DBA, a service water pump on the affected unit (in addition to the pump supplying the diesels) must be placed o

. In order to assure single failure criteria is met, the proposed in service.

Technical Specification change requires two operable conventional service j

water pumps.per unit while in OPERATIONAL CGNDITION.1, 2, or 3 As discussed-above, when in OPERATIONAL CONDITIONS 4 and 5, the reduced _ core decay heat load and the accessibility to the reactor building.for manual

-operator action reduces the requirement for' operable service water pumps after -

4 an accident / transient to one.

Therefore, when in OPERATIONAL ~ CONDITIONS 4 i

or 5 two operable service water pumps (any. combination of nuclear and/or e

conventional), capable of supplying the nuclear header, are required provided b

that there are at least two operable nuclear service water pumps per site.

. Maintaining two operable service water pumps while in OPERATIONAL CONDITIONS 4 4

t or 5 assures single failure criteria iare met and stipulating at least two operable-nuclear service water pumps per site assures diesel generator cooling will be available.

The allowed out of service times and compensatory measures established-in the Action Statements are consistent with or more conservative than those of the existing Technical Specification 3 7.1.2.

In particular, Action. Statement a.2 for OPERATIONAL CONDITIONS 1, 2, and 3 requires the unit to be in HOT SHUTDOWN within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months with 'no

. operable nuclear service' water pumps.

Analysis have 'been performed which 4

(demonstrates that operation in OPERATIONAL CONDITIONS 1 through 3, with no M

operable nuclearLaervice water pumps, is acceptable provided that at least two nuclear service water pumps are operable on the opposite unit and two conventional pumps are operable on the affected unit.

In order to minimize the risk of personnel error in administrating this requirement, a more conservative Action Statement has been established.

(

.s:,aw y

sw- ' J-'

,ur;,

w w. 4; <

~n

^

gu,s 4, M,W,;3 mwt m,' n mn m?m:m.

y

+

x wru

.(

l[vw h ;pis - o

^

C I

<: y. = v '

W ho T..ty? :

?

n(f-J ' *,QQ t h;Tji f ' g h '

s ::W

~

[h.h.'2I(d ;-

'If m' y

. h.f 0. l tl ' r. f..e o': ;.

+

3p c_

' ' h'.'

y 3

4 k

5 3P p

iL h ;t-

1.se -

t.

/ G)'. < ' M' '$@l'g.0 ty m:b r,-

c; m,

4:

m-1.5 19

' :t p# p a -J, y; rc: i r -

3~

4

. Q ~ y Y E.5 -l,k ?

d1

-; h.,'

, L: '

}

)

?: t,g.. tm e v '

tp

.t,.v

a. c =-

t.y ;

J.,q q.g; m %~ n

. i f,

% nr:

1 m.

m

- %.;.q

+-

wy x,(. e r

i. g 4 v

2 g,.

3 3w.

r-54 4

@o

. g' EM

. am ENCLOSURE 91; M:W$M%',2 <

, m*.%.

y, w.

@x %, s.

'.-b'...y TBRUNSWICK STEAM ELECTRIC! PLANT, UNITS 11AND12=

4, i.

r y,e g, f.

,t Oa "r

NRC. DOCKETS 50-325 & 50-320

e%f,

m m

a Et a.

, OPERATING' LICENSES DPR-71:& DPR-621.

M.

uREQUEST FOR LICENSE: AMENDMENT =

g g,.;..

g% <, w'.y?

a

, g.

-SERVICE WATER: SYSTEM a,

x.

s

'4:.

Ul Jfl't.f

. x 'f

y t

..je.

s,-

~1.1 7

r i 2!

4 2

i

'r 8

y; 7y^

e MN

TECHNICAL SPECIFICATION'PAGES -' UNIT'2%

,j 3

g w.

V; ",'n n,., <

s s u.,

e x s.:)

k,.

pn'n g..tv' 2

5,,s,,

's

>A'-.

3.: ,'y

, ' fi4

>- '. "i J

>e

. d '[j ' '

',',..[

4 j kQ v,

[I

+

(*

r

- t w

y

t -.

' k

. '-QN f

.4

?

h kr,, l l\\[ N 4

,.: ' 1 t

NclM' y'g.-

s-

]'

v se Mi~ Qi.

.; b q.* ;

33.'i i

e ps., > t p,

e 4 -4,;q 3

t 9_ s "b..

.i y

f' 4

q'.'

j

., x. 2d

[.; dh.. 'h, (

,'.-3 J

y-1 t gA,. >

a 4t I of^

Ed

)

r,p W-

. Y Q

~.

I.i, k

f

%;p@' 9. '.

t j

3 A

a 4e. -.4.

gn y f.

i ? _'y

- M.

5 f.

- @ 4,57.4..

w-

}

f

'h'l g i, -.

i t

4 1.>

s 2

L E'8.,f, ;,e 1gy; c

'k 0 _

y.

ret 3, @(Q' A

!: t 3:[';

3:.

I'.

'?

A

?.9

'i

!P] CW

.g h *,

6s M' d ;

..gg e i

+ C g-L.;

a

, E i +

i i

g.

- l

? ?

.<;(

,d e

<t,L.m, i

y p

'{

QD

'v.cd

.l i,a, 3 i

}

t L. g..;

4 w

'i

,1 a

Q%)'/.,

f' 2 %~~ N. = $

.x

. f;-

I!

-t s

a..

a

!E Q.)'V h

g r.,. ;

r.E :: si '

-f I

.qp

[

l y O

WS

-s,h, s 4.

4

..x i

-1 1

3

)

b i

4

~

-: f.r

i su

+

7) m

+

5 4 i..?.r.. Q.l'

~4:(' j f.1/; ' j j.i.,

r-1 5'

N 11 I

/

a.

.i

., lh? k ' ) y >.. &_ $. _.. ___ _ _ _ _ _ _ _ _ _...

>+m

3 m -

YYY p.'

.- h -

UNIT 2 1

.5 r

L J

PIANT SYSTEMS SERVICE WATER SYSTEM

[

LIMITING CONDITION'FOR OPERATION

' _UNITf2 p

3.7.1.2 The service water system shall be OPERABLE with at i

least:-

s L

1

~ In OPERATIONAL CONDITIONS 1, 2,

and 3 Two OPERABLE: nuclear service water pumps, and two OPERABLE m

' conventional service water pumps capable of supplying the nuclear and conventional headers.

i LIn OPERATIONAL? CONDITIONS 4 AND 5 t

'1

-Three OPERABLE site: nuclear service water pumps; and two OPERABLEiUnit 2 service water pumps, nuclear and/or

+

conventional, powered from separate emergency buses and capable of supplying the nuclear header.

-APPLICABILITY:

OPERATIONAL CONDIT* TIS l',

2,.3, 4,

and 5 t

ACTION:

'a.

In OPERATIONAL CONDITION l',-

2, or 3:

1.-

-With two OPERABLE conventional service water-pumps and k

only one-nuclear service' water pump OPERABLE, restore the remaining nuclear service water pump to OPERABLE status'within 7 days or be.in HOT: SHUTDOWN within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months ' and COLD. SHUTDOWN within the following-24 hours.

2.

With-no OPERABLE nuclear service water pumps, regardless of conventional service water-pump status, be in'at least HOT' SHUTDOWN within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months '.

3.

With two OPERABLE nuclear service water pumps and only one conventional service water pump OPERABLE, restore

'at least,one. additional conventional service water pump to OPERABLE status within 7 days or be in HOT' SHUTDOWN within 12 and COLD shutdown within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

t

,t

.. ~

y,n,.

~

~~

~ ~ ~ ^

^'T"~

'~

^~ ~

^

+

:F i

r I

V - M) k o

,L p

With two OPERABLE nuclear service water pumps and no 4.

eOnventional service water pump OPERABLE, restore ~at least one conventionalfservice water pump to OPERABLE j

status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months and restore the remaining M y' convent'ional service water pump to OPERABLE status within 7 days from the time of the' loss of the,first-pump.

Otherwise, be in at least HOT SHUTDOWN ~within the'next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .and in' COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ..

-5.

With only one nuclear service water pump and one conventional service water pump OPERABLE, restore at least one additional service water pump, nuclear or conventional, to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months and restore-the' remaining service water pump to OPERABLE status within 7 days from the time of the loss of the-I first pump.

Otherwise, be-in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following'24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

l 6.

With one OPERABLE nuclear service water pump and no 1

OPERABLE. conventional' service water pumps, be in at

~

-least HOT SHUTDOWN within the.next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD i

SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

.b.

In OPERATIONAL CONDITION 4 or 5:

7

1. -

With one'less than the required. number of nuclear service water pumps OPERABLE per site, restore at least p

one additional nuclear service water pump to OPERABLE status within 14 days or declare.the diesel-generators inoperable and take the ACTION' required by

~

Specifications 3. 8.1.1 or '3. 8.1.2 lus. appropriate.

l 2.

With the service water system nuclear-header-L inoperable, or no Unit 2 nuclear service water pumps operable, operation may continue provided:that the service water system conventional' header is OPERABLE with at'least two-conventional service water pumps OPERABLE.

Restore the service water system nuclear header to OPERABLE status within 14: days or declare'the Core Spray System and LPCI System inoperable and take the ACTION. required by Specifications 3.S.3.1 and-3.5.3.2.

Also, declare the diesel generators inoperable and take the ACTION required by Specifications 3.8.1.1 or 3.8.1.2 as appropriate.

3.

With less than two OPERABLE site nuclear service water pumps, declare the diesel generators inoperable and take the ACTION required by Specifications 3.8.1.1 or 3.8.1.2 as appropriate.

E

~

r '

yme _

,,,n

hhp, 1-i ' Tii >

f t.m.% gc j

', 9.g W.

(

6 4.

Lwith.only one UnitL2-service water pump CPERABLE, j

restore at'least one additional Unit 2 pump,'eithert k

p nuclear or. conventional,; powered from a separate-e e

emergency bus, to OPERABLE status within 7 days'or-declare =the Core Spray System and the LPCI System H

r-7 inoperable'and.take the ACTION required by H

Specifications-3.5.3.1 and 3.5.3.2.-

j

.)

-1 i

1 1

ti ! ',

)

!T

[t ;'

1

3 r.

5 e

)

t - '

S l;'

C l'

V lI

.'.' {

1

-- i

\\

p l

i r

t. a i

p.

I.

(.

N l.

4i h

i o

s e

i.

4

k c~ 11W 8'

/

k j

INSERTF,0RBdSES3/4-71 During the initial stage of a DBA (0-10 minutes), the service water system 4

provides ~1ube water and service water cooling to the diesel generators.. The service water system design allows either unit's nuclear header to supply

-diesel generator cooling water..One pump can supply sufficient flow to cool all four diesel generators.

Therefore, any combination of two operable 1

nuclear service water pumps will meet the single failure criteria and assure Ldiesel generator cooling. The requirement:for two operable nuclear service water pumps associated with a unit in OPERATIONAL CONDITIONS 1, 2, or 3 and at least two operable nuclear service water pumps per site when one or both units are in OPERATIONAL CONDITIONS 4 or 5 ensures that emergency diesel generator cooling requirements are met.

After the initial-ten minutes of a DBA, additional loads require cooling water.

These loads include RHR and CS pump room coolers, RHR service water heat exchangers, and RHR pump seal heat exchangers.

Evaluations have determined that the RHR pump seals, as well-as the equipment in rooms serviced by the RHR and CS room coolers, remain within the manufacturers' temperature limits for the' first ten minutes of a DBA.

To meet the adcitional loads j

during the post-ten. minute stage of a DBA, a service water pump on the affected unit (in addition to the pump supplying the diesels) must be placed in service.

In order to assure single failure criteria is met, the proposed j

Technical Specification change requires two operable conventional service water pumps per unit while in OPERATIONAL CONDITION 1, 2, or 3.

As discussed above, when in' OPERATIONAL CONDITIONS 4 and 5, the reduced core decay heat load and the accessibility to the reactor building for manual operator action reduces the requirement for operable service water pumps after an accident / transient to one.

Therefore, when in OPERATIONAL CONDITIONS 4 3

or 5 two operable service water pumps (any. combination of nuclear and/or conventional), capabic of supplying the nuclear header, are required provided-~

that there are at least two operable nuclear service water pumps per '. site.

MaintaininE two_ operable service water pumps while in OPERATIONAL CONDITIONS 4 or 5 assures single failure criteria are met and stipulating at'least two 1

operable nuclear service water pumps per site assure diesel generator cooling will be available.

The allowed out of service times and compensatory measures established in the Action Statements are consistent with or more conservative than those of the existing Technical. Specification 3.7.1.2.

In particular, Action Statement a.2 for OPERATIONAL CONDITIONS 1, 2, and 3 requires the unit to be in HOT SHUTDOWN within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months with no

{

operable nuclear service water pumps.

Imalysis have been performed which i

demonstrates that operation in OPERATIONAL CONDITIONS 1 through 3, with no operable' nuclear service water pumps, is acceptable provided that at least two

[

nuclear service water pumps are operable on the opposite unit and two conventional pumps are operable on the affected unit.

In order to minimize the risk of personnel error in administrating this requirement, a more conservative Action Statement has been established.

.

ML20012A426

Text

Navigation menu

Search