Text

Proposed Tech Specs,Including Section 3/4.6.2, Depressurization Sys, Reflecting Increased Operation of Units W/Suppression Pool Temps Up to 110 F
	ML20155J241
Person / Time
Site:	LaSalle
Issue date:	08/05/1988
From:	; COMMONWEALTH EDISON CO.
To:	;
Shared Package
ML19297H135	List: ML20155J237; ML20155J241;
References
	NUDOCS 8810250426
	Download: ML20155J241 (9)
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CONfAINMENTSYSTEMS 3/4.6.2 DEPRESSURIZATION SYSTEMS SUPPRESSION CHAMBE LIMITING CONDITION FOR OPERATION 3.6.2.1 The suppression chamber shall be OPERABLE with:

a. The pool water: 3

1. Volume between 131,900 ft3 and 128 ft , equivalent to a level between 26 ft. 10 in, and 2 t. 21s in., and a l

2. Maximum average temperature of 10 'F Jring OPERATIONAL e CONDITION 1 or 2, except that the mum average temperature ,

maybepermgtedtoincreaseto:

a) 105'F, during testing which adds heat to the suppression l l chamber.

b) 110*F with THERMAL POWER less than or equal to 1% of I

RATED THERMAL POWER.

! c) 120'F with the main steam line isolation valves closed l i following a scram.

b. Drywell-to-suppression chamber bypass leakage less than or equal to 10% of the acceptable A/8 design value of 0.03 ft2.

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.

l ACTION: :

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a. With the suppression chamber water level outside the above limits, !

restore the water level to within the limits within 1 tour or be in ;

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

b. in OPERATIONAL CONDITION 1 or 2 with the suppression chamber average water temperature greater than or equal to 100'F, restore the average temperature to less than or equal to 100*F within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT SHUTOOWN 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 , except, as permitted above: ,

1. With the suppression chamber average water temperature greater than 105'F during testing which adds heat to the suppression !

! chy ber, stop all testing which adds heat to the suppression .

1 charaber and restore the average temperature to less than or '

equal to 100*F within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT SHUTOOWN

within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTOOWN within the fo11 ewing l 4 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . i

! 2. With the suppression chamber average water temperat'are greater l than 110'F, place the reactor mode switch in ths Shutdown i position and operate at least one residual heat removal loep in the suppression pool cooling mode.

t 3. 'With the suppression chamber average water terrperature greater I than 120*F, depressurize the reactor pressure vossel to less !

! than 200 psig within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . l i

See Specification 3.S.3 for ECCS requirements. '

1. See Special Test Exception 3.10.8. , l I

$ WMi Oc fober l,1988 +ke loo'F hml+ 't f lacedMed 40 I t 0 *F. Ac+ios b does no+ ap()h; ed ss replacecf bi;f Achon p,

, LA SALLE - UNIT 1 3/4 6-16 Amendment No.13 J 8810250426 000005 PDR ADOCK 05000373 P PNV l

4 CONTAINMENT SYSTEMS LIMITING CONDITION FOR OPERATION (Continued)

~

ACTION: (Continued)

c. With one suppression chamber water level instrumentation channel inoperable and/or with one suppression pool water temperature instrumentation division inoperable, restore the inoperable e i instrumentation to OPERABLE status within 7 days or verify suppres-sion chamber water level and/or temperature to be within the limits at least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months by local indication.

d. With both suppression chamber water levol instrumentation channels

. inoperable and/or with both suppression pool water temperature ,

instrumentation divisions inoperable, restore at least one i inoperable water level channel and one water temperature division to OPERABLE status within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least HOT SHUTOOWN 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 .

e. With the drywell-to-suppression chamber bypass leakage in excess of the limit, restore the bypass leakage to within the limit prior to -

ggg nereasing reactor coolant temperature a Nve 200*F.

SURVEILLANCE REQUIREMENTS 4.6.2.1 The suppression chamber shall be demonstrated OPERABLE:

l a. By verifying the suppression chamber water volume to be within the limits at least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

b. At least onc pf 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months in OPERATIONAL CONDITION 1 or 2 by verifying i the suppre o equalto10'Fphaberaveragewatertemperaturetobelesschanor

,e ept:

1. At lea ce per 5 minutes.during testing which adds heat to the suppression chamber, by verifying the suppression chamber average water temperature less than or equal to 105*F.

2.4 At least once per 60 minutes when suppression chamber average I

l water temperature is greater than 100'F, by verifying suppression l l

chamber average water temperature less than or equal to 110*F ,

and THERMAL POWER less than or equal to 1% of RATED THERMAL POWER.

, 3. At least once per 30 minutes following a scram with suppression chamber average water temperature greater than or equal to 100*F, by verifying suppression chamber average water temperature less than or equal to 120'F.

4 (Anhl OeJober b 1968 Yb8f SWU'cII Ame repremed is no4 opphc able.

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M//O F ui1h/ Ockber I,1988 LA SALLE - UNIT 1 3/4 6-17 Amendment No.18 4

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j INSERT to Unit 1, Page 3/4 6-17 i i

f. In OPERATIONAL CONDITION 1 or 2:

1. With the suppression chamber average water temperature greater than 105'r during testing which adds heat to the suppression ,

chamber, stop all testing which adds heat to the suppression -

chamber. ;

, i j 2. With the suppression chamber average water temperature greater l 1 than 110'r, place the reactor mode switch in the Shutdown r

position and operate at least one residual heat removal loop in '

the soppression pool cooling mode. i 1 f

3. With the suppression chamber average. water temperature greater i l than 120*F, depressurise the reactor pressure vessel to less than ,

1 200 psig within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , l 1 r i

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e CONTAINMENT SYSTEMS SURVEILLANCEREQUIREkENTS(Cor.tinued) .

1 c. By verifying at least two suppression chamber water level instre-mentation channels and at least 14 suppression pool water temperature instrumentation channels, 7 in each of two-divisions, OPERABLE by performance of a:

1. CHANNEL CHECK at least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ,

2. CHANNEL FUNCTIONAL TEST at least once per 31 days, and

3. CHANNEL CALIBRATION at least once per 18 months, with the water level and temperature alarm setpoint for:

1. High water level i 26'ft. 8 in, l I

2. Low water level > 26 . . ;

3. High temperature 1 0'F M I

( t

d. By conducting drywell' to-suppression chamber bypass leak tests and ,

verifying that the A/4 calculated from the measured leakage is a

within the specified limit when drywell-to-suppression chamber bypass leak tests are conducted:

1. At least once per 18 months at en initial differential pressure :

of 1.5 psi, and J. At the first refueling outay and then on the schedule required for Type A Overall Integrated Containment Leakage Rate tests by Speci- ;

fication 4.6.1.2.a; at an initial differential pressure of 5 psi, i except that, if the first two 5 psi leak tests performed up to that ;

j time result in: ;

1. A calculated A/ 4 within the specified limit, and i

) 2. The A/4 calculated from the leak tests at 1.5 psi is*1 20% of i

. the specified limit, l i

j then the leak tests at 5 psi may be discontinued.

l i M- los CF u d I Ocfober b I988 ;

l 1

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1 LA SALLE - UNIT 1 3/4 6 18 Amendment No. 18 1 i

1

. CONTAXNMENT SYSTEMS 3[4. 4. 2 OEPRESSURf2ATXON SYSTEMS SUPPI SION CHAMBER #

LIMI'iif1G CONDITION FOR OPERATION <

'3.6.2.1 The suppression chamcer shall be OPERABLE with:

a. The pool water:

1. Volume between 131,900 ft3 and 128 - 3, equivalent to a e

level between 25 f t 10 in and 26 f t 21s i ., and a .

2. Maximum average temperature of 00F$ur'ngOPERATIONAL I CONDITION 1 or 2, except that t .. um average temperature

, may be permitted to increase to:

a) 105 F, during testing whicu adds heat to the suppression enameer, b) 110 F with THERMAL POWER less than or equal to 1*. of RATED THERMAL POWER.

c) 120*F with the main steam line isolation valves closed following a scram.

b. Dry ell-to-sucpression chamcer bypass leakage less than or equal to 10*. of the acceptsele A/Jk design value of 0.03 ft2 .

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.

ACTION:

a. With the suppression chamber water level outside the above limits, restore the water level to within the limits within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months or be in t least HOT SHUT 00'aN within the. next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUT 00'aN w' thin the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

b. n OPERATIONAL 'ON0! TION 1 or 2 with the suppression chamber average water temoerature greater than or equal to 109*F, restore the average temoersture to less than or equal to 100*F within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ur be in at least HOT SHUT 00'aN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUT 00'aN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , except, as permitted above:

1. With the suceression chamber average water temperature greater than 105*F during testing which adds heat to the suppression cham-ber, st0c all tasting wnich adds heat to the suppression chamber and castore the average temperature to less than or equal to 100*F within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT SHUT 00WH within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUT 00WN within the following 24 heurs.

2. With tne su:oression cha :ber average water temperature greater than 110*F, clace the reactor mode switch in the Shutdown position and o::erste at least one residual heat removal loop in the sucerassion pool cooling moda.

3. With the su:cression enameer sverage water temperature c' eater than 10", ca:ressuri:e the reactor pressure ve sel N less than 200 :s'; within 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months .

edee ;ce:1rica:1cn 3.5.3 ':r ECOS recuirements.

'A $ALLI - UNIT 2

. 3/a 6-19 g phi Ochber b M88 04. looep hWd is increafed b IIO T.

f i c. b o n b Cl o e S no+ Afh0& M10iS W ""N N N # ' ;

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t CONTAINMENT SYSTEMS d

LIMITING CONDITION FOR OPERATION (Continued)

'l ACTION: (Continued)

c. With one suppression chamber water level instrumentation channel inoperable and/or with one suppression pool water temperature instrumentation division inoperable, restore the inoperable instrumentation to OPERABLE status within 7 days or verify suppres- .

sion chamber water level and/or temperature to be within the limits !'

, at least once per 12 hnurs by local indication.

i

d. With both suppression chamber water level instrumentation channels !

4 inoperable and/or with both suppression pool water temperature l

instrumentation divisions inoperable, restore at least one ;

inoperable water level channel and one water temperature division j

' to OPERABLE status within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least HOT SHUTOOWN ,

l within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months a 9 in COLD SHUTDOWN within the following j 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . '

i e. With .he drywell-to-suppression chamber bypass leakage in excess of j the limit, restore the bypass loakage to within the limit prior to gg creasing reactor coolant temperature above 200*F.

, SURVEILLANCE REQUIREMENTS l

l 4.6.2.1 The suppression chamber shall be demonstrated OPERABLE:

a. By verifying the suppression chamber water volume to be within the limits at least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . .

i

b. At least onc ,e p 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months in OPERATIONAL CONDITION 1 or 2 by verifying j the suppre sto ha ber average water temperature to be less th.in or equal to 1 0* , x .pt:

l 1

1. At least once per 5 minutes during testing which adds heat to 3

the suppression chamber, by verifying the suppression chamber ,

i average water temperature less than or equal to 105'F.

[

2. At least once per 60 minutes when suppression chamber average water temperature is greater than 100'F, by verifying suppression !

chamber average water temperature less than or equal to 110'F l

' and THERMAL POWER less than or equal to 1% of RATED THERMAL i POWER.

l I 3. At least once per 30 minutes following a scram with suppression !

I chamber average water temperature greater than or equal to

{ 100*F, by verifying suppression chamber average water temperature

! less than or equal to 120'F.

l y hp ochber I, 1968 446s surviellaace i reepwwea4 a no 4 appi,ca.6le .

1 LA SALLE %K - UNIT 40 2 *f usM ochber6 374 20I 1988 4

l

n - -- - _.

. l INSERT to Unit 2, Page 3/4 6-20 I

f. In OPERATIONAL CONDITION 1 or 2: ;

1. With the suppression cha *er s average water temperature grekter !

than 105'T during testing which addn heat to the suppression chamber, stop all t esting which adds heat to the suppression (

chamber. .

I i

1

2. With the suppression chamber average water ;emperature greater (

l than 110*F, place the reactor mode switch in the Shutdown ,

position and operate at least one residual heat removat loop in l the suppression pool ecoling mode. ,

3. With the suppression chamber average water temperature greater i than 120'F, depressurise the reactor pressure vessel to less than ;

l 200 psig within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

l

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1 l CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) -

c. By verifying at least 2 suppression chamber water level instru-mentation channels and at least 14 suppression pool water temperaturi instrumentation channels, 7 in each of two divistors, OPERA 8LE by -

performance of a:

, 1. CHANNEL CHECK at least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , !

2. CHANNEL FUNCTIONAL TEST at least once per 31 days, and

3. CHANNEL CALIBRATION at least once per 18 months, ,

with the water level and temperattre alarm setpoint for:

1. High water level 5 26 ft 8 in, s

2. Lo'w water level > 26 f

3. High temperature 5 10 'F

d. By conducting drywell-to-suppression chamber bypass leak tests and verifying that the A/JE calculated from the measured leakage is !

within the specified limit when drywell-to-suppression chamber bypass leak tests are conducted: l; t

1. At least once per 18 months at an initial differential pressure '

of 1.5 psi, and

2. At the first refueling outage and then on the schedule required for Type A Overall Integrated Containment Leakage Rate tests by Spect- (

fication 4.6.1.2.a., at an initial differential pressure of 5 psi, except that, if the first two 5 psi leak tests performed up to that I time result in: l 1

1. A calculated A/VI within the specified limit, and ;

2. The A/JI calculated from the leak tests at 1.5 psi is < 20% of

~

the specified limit.

j then the leak tests at 5 psi may be discontinued.

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1 1.A SALLE - UNIT 2 3/4 6-21 i ,

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TECHtfICAL SPIC.IflCATIGi CHANGE REQUEST LASALLE COUNTY STATICif UNITS.1 an 2

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