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
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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 3

1.

Volume between 131,900 ft 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 CONDITION 1 or 2, except that the mum average temperature e

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 2

10% of the acceptable A/8 design value of 0.03 ft.

APPLICABILITY:

OPERATIONAL CONDITIONS 1, 2, and 3.

l ACTION:

4 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

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

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2.

With the suppression chamber average water temperat'are greater 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.

3.

'With the suppression chamber average water terrperature greater t

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 .

i

See Specification 3.S.3 for ECCS requirements.

1. See Special Test Exception 3.10.8.

I

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8810250426 000005 PDR ADOCK 05000373 P

PNV

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 l

I 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.

l M//O F ui1h/ Ockber I,1988 i

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 2.

With the suppression chamber average water temperature greater l

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

1 1

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'1 i

e CONTAINMENT SYSTEMS SURVEILLANCEREQUIREkENTS(Cor.tinued)

By verifying at least two suppression chamber water level instre-c.

1 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

2.

Low water level > 26 I

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 within the specified limit when drywell-to-suppression chamber a

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.

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M-los CF u d I Ocfober b I988 1

l

)

1 LA SALLE - UNIT 1 3/4 6 18 Amendment No. 18 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 level between 25 f t 10 in and 26 f t 21s i., and a e

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 ft.

2 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 LIMITING CONDITION FOR OPERATION (Continued) d

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

4 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 the suppression chamber, by verifying the suppression chamber 3

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

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

l

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

f.

In OPERATIONAL CONDITION 1 or 2:

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

s 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 f

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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 l

bypass leak tests are conducted:

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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ATTACB8EurT.C I

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TECHtfICAL SPIC.IflCATIGi CHANGE REQUEST

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LASALLE COUNTY STATICif UNITS.1 an 2 a

J SUPPLEMENTAL SUPPORTING INFORMATIGi 5

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ML20155J241

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